Using the table below, you can sort and filter the union halls.
Click on the headers to sort the table. Click the “Town” heading to sort by web address, the “Call Letters” heading to sort by the call letters, the “Full Name” heading to sort by the full name, the “Local Name” heading to search by local name, the “Notes” heading to sort by notes, the “Web Site” heading to sort by web site link, and the “More Info” heading to sort by the more info link. The first time you click the sorting direction is ascending (A through Z). Click again, and the sorting direction is descending (Z through A).
To filter the results, type in the search box. As you type, only the relevant results will remain in the table. To see all results again, simply clear the search box.
To change which columns are visible, click the “Column visibility” button, and then click a button from the list (which drops down) to alternately remove or replace the corresponding column. If you see a green circle with a plus symbol (+) inside, you can click on that to see even more data.
To visit any union site, simply click on the address in the “Web Site” column, and the corresponding page will open. To find out more about any union (such as membership size, financial information, and so on), simply click on the address in the “More Info” column, and the corresponding information page will open.
We strive to keep this list as updated and accurate as possible, so if you can provide more complete and updated information than you find below, please contact us at [email protected] with the subject heading “Union Hall information”, and we’ll be glad to add that information.
Return to the main Direct Contact Union Halls page here, or by using your browser’s back button.
Town | Call Letters | Full Name | Local Name | Notes | Web Site | More Info |
|---|---|---|---|---|---|---|
| Abbeville | SMART | International Association of Sheet Metal, Air, Rail and Transportation Workers | Local 970 | Representing roughly 110 members | https://www.unionfacts.com/lu/12138/SMART/970/ | |
| Abbeville | UTU | United Transportation Union | Local 970 | Representing roughly 130 members | https://www.unionfacts.com/lu/12138/UTU/970/ | |
| Aiken | APWU | American Postal Workers Union | Local 1581 | Representing roughly 20 members | https://www.unionfacts.com/lu/507159/APWU/1581/ | |
| Aiken | BSOIW | International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers | Local 846 | Representing roughly 1,000 members | https://www.unionfacts.com/lu/542855/BSOIW/846/ | |
| Aiken | IBT | International Brotherhood of Teamsters | Local 86 | Representing roughly 370 members | https://www.unionfacts.com/lu/68807/IBT/86/ | |
| Aiken | IUOE | International Union of Operating Engineers | Local 470 | http://www.local470.net/ | ||
| Aiken | NALC | National Association of Letter Carriers | Local 1569 | Representing roughly 80 members | https://www.unionfacts.com/lu/80038/NALC/1569/ | |
| Aiken | UGSOA | United Government Security Officers of America, International Union | Local 116 | Representing roughly 20 members | https://www.unionfacts.com/lu/541329/UGSOA/116/ | |
| Aiken | UPPSR | United Professional Pro-Force of Savannah River | Local 125 | |||
| Anderson | AFGE | American Federation of Government Employees | Local 3509 | Representing roughly 860 members | https://www.unionfacts.com/lu/508782/AFGE/3509/ | |
| Anderson | APWU | American Postal Workers Union | Local 18 | Representing roughly 20 members | https://www.unionfacts.com/lu/505857/APWU/18/ | |
| Anderson | APWU | American Postal Workers Union | Local 2444 | https://www.unionfacts.com/lu/92699/APWU/2444/ | ||
| Anderson | CWA | Communications Workers of America | Local 3702 | Representing roughly 150 members | https://www.unionfacts.com/lu/12107/CWA/3702/ | |
| Anderson | GMP | Glass, Molders, Pottery, Plastics and Allied Workers International Union | Local 15 | Representing roughly 150 members | https://www.unionfacts.com/lu/61448/GMP/15/ | |
| Anderson | NALC | National Association of Letter Carriers | Local 1871 | Representing roughly 150 members | https://www.unionfacts.com/lu/80048/NALC/1871/ | |
| Beaufort | AFGE | American Federation of Government Employees | Local 1951 | Representing roughly 230 members | https://www.unionfacts.com/lu/503829/AFGE/1951/ | |
| Beaufort | AFGE | American Federation of Government Employees | Local 240 | Representing roughly 2,270 members | https://www.unionfacts.com/lu/516959/AFGE/240/ | |
| Beaufort | AFGE | American Federation of Government Employees | Local 2796 | Representing roughly 40 members | https://www.unionfacts.com/lu/501419/AFGE/2796/ | |
| Beaufort | APWU | American Postal Workers Union | Local 2841 | Representing roughly 10 members | https://www.unionfacts.com/lu/92697/APWU/2841/ | |
| Beaufort | IAMAW | International Association of Machinists and Aerospace Workers | Local 2775 | Representing roughly 210 members | https://www.unionfacts.com/lu/542757/IAM/2775/ | |
| Beaufort | NALC | National Association of Letter Carriers | Local 3262 | Representing roughly 30 members | https://www.unionfacts.com/lu/80045/NALC/3262/ | |
| Beaufort | NRLCA | National Rural Letter Carriers' Association | Representing roughly 100 members | https://www.unionfacts.com/lu/511372/RLCA/0/ | ||
| Bennettsvill | NALC | National Association of Letter Carriers | Local 1590 | https://www.unionfacts.com/lu/83767/NALC/1590/ | ||
| Bennettsville | AFGE | American Federation of Government Employees | Local 2585 | Representing roughly 200 members | https://www.unionfacts.com/lu/543641/AFGE/2585/ | |
| Bishopville | USW | United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union | Local 8634 | Representing roughly 80 members | https://www.unionfacts.com/lu/511228/USWA/8634/ | |
| Buffalo | UAW | International Union, United Automobile, Aerospace, and Agricultural Implement Workers of America | Local 4616 | Representing roughly 20 members | https://www.unionfacts.com/lu/541759/UAW/4616/ | |
| Burton | AFGE | American Federation of Government Employees | Local 1951, USMC Local 7 | |||
| Catawba | PACE | Paper, Allied-Industrial, Chemical and Energy Workers International Union | Local 1569 | Representing roughly 10 members | https://www.unionfacts.com/lu/514000/PACE/1569/ | |
| Catawba | USW | United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union | Local 925 | Representing roughly 150 members | https://www.unionfacts.com/lu/54522/USWA/925/ | |
| Cayce | IATSE | International Alliance of Theatrical Stage Employees | Local 347 | |||
| Cayce | SPFPA | International Union, Security, Police, and Fire Professionals of America | Local 332 | Representing roughly 10 members | https://www.unionfacts.com/lu/542264/SPFPA/332/ | |
| Charleston | AFM | American Federation of Musicians | Local 502 | |||
| Charleston | APWU | American Postal Workers Union | Local 566 | |||
| Charleston | ATU | Amalgamated Transit Union | Local 610 | Representing roughly 170 members | https://www.unionfacts.com/lu/38512/ATU/610/ | |
| Charleston | BCTD | Building and Construction Trades Department, AFL-CIO | Representing roughly 20 members | https://www.unionfacts.com/lu/543253/BCTD/0/ | ||
| Charleston | BCTD | Building and Construction Trades Department, AFL-CIO | https://www.unionfacts.com/lu/17410/BCTD/0/ | |||
| Charleston | BSOIW | International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers | Local 601 | Representing roughly 220 members | https://www.unionfacts.com/lu/14503/BSOIW/601/ | |
| Charleston | IAFF | International Association of Fire Fighters | Local 61 | Represents a large number of personnel employed by the City of Charleston Fire Department | http://www.local61.com/ | |
| Charleston | IAMAW | International Association of Machinists and Aerospace Workers | Local Lodge 183 | Representing employees at Westvaco Paper Mill | ||
| Charleston | IATSE | International Alliance of Theatrical Stage Employees | Local 333 | Represents technicians and crew members who plan, build, set-up, load-in and run events | https://www.iatse333.com/ | https://www.unionfacts.com/lu/5528/IATSE/333/ |
| Charleston | IBEW | International Brotherhood of Electrical Workers | Local 1753 | Representing roughly 100 members | https://www.unionfacts.com/lu/43446/IBEW/1753/ | |
| Charleston | IBEW | International Brotherhood of Electrical Workers | Local 398 | Representing roughly 250 members | https://www.unionfacts.com/lu/5532/IBEW/398/ | |
| Charleston | IBEW | International Brotherhood of Electrical Workers | Local 776 | Representing roughly 390 members | https://www.unionfacts.com/lu/27437/IBEW/776/ | |
| Charleston | ILA | International Longshoremen's Association | Local 1422 | Representing roughly 490 members | https://www.unionfacts.com/lu/11641/ILA/1422/ | |
| Charleston | ILA | International Longshoremen's Association | Local 1422 | Representing roughly 230 members | https://www.unionfacts.com/lu/509406/ILA/1422/ | |
| Charleston | ILA | International Longshoremen's Association | Local 1751 | https://www.unionfacts.com/lu/6859/ILA/1751/ | ||
| Charleston | ILA | International Longshoremen's Association | Local 1771 | Representing roughly 130 members | https://www.unionfacts.com/lu/1679/ILA/1771/ | |
| Charleston | NAGE/SEIU | National Association of Government Employees / Service Employees International Union | Local 136 | Representing roughly 190 members | https://www.unionfacts.com/lu/519257/NAGE/136/ | |
| Charleston | NALC | National Association of Letter Carriers | Local 3902 | Representing roughly 310 members | https://www.unionfacts.com/lu/80042/NALC/3902/ | |
| Charleston | NTEU | National Treasury Employees Union | Local 166 | Representing roughly 100 members | https://www.unionfacts.com/lu/530191/NTEU/166/ | |
| Charleston | NWSEO | National Weather Service Employees Organization | Local 50 | https://www.unionfacts.com/lu/515673/NWSEO/50/ | ||
| Charleston | UA | United Association of Journeymen and Apprentices of the Plumbing, Pipefitting and Sprinkler Fitting Industry | Local 421 | One Local Union Dedicated to the Members of the Carolinas | http://www.ualocal421.org/ | |
| Charleston | UGSOA | United Government Security Officers of America, International Union | Local 97 | Representing roughly 20 members | https://www.unionfacts.com/lu/540964/UGSOA/97/ | |
| Charleston AFB | AFGE | American Federation of Government Employees | Local 1869 | Represents the employees of Charleston Air Force Base | http://www.afgelocal1869.org/ | https://www.unionfacts.com/lu/503866/AFGE/1869/ |
| Charleston Air Force Base | IAMAW | International Association of Machinists and Aerospace Workers | Local Lodge 2017 | http://ll2017.goiam.org/index.htm | ||
| Charleston Sc | AFGE | American Federation of Government Employees | Local 523 | Representing roughly 60 members | https://www.unionfacts.com/lu/543236/AFGE/523/ | |
| Charleston Sc 29414 | USW | United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union | Local 863 | Representing roughly 50 members | https://www.unionfacts.com/lu/16721/USWA/863/ | |
| Chesnee | NALC | National Association of Letter Carriers | Local 3082 | https://www.unionfacts.com/lu/80700/NALC/3082/ | ||
| Chester | NALC | National Association of Letter Carriers | Local 1212 | https://www.unionfacts.com/lu/80041/NALC/1212/ | ||
| Chesterfield | NALC | National Association of Letter Carriers | Local 6423 | https://www.unionfacts.com/lu/91473/NALC/6423/ | ||
| Clinton | NALC | National Association of Letter Carriers | Local 1746 | https://www.unionfacts.com/lu/83144/NALC/1746/ | ||
| Columba | AFGE | American Federation of Government Employees | Local 3841 | Representing roughly 60 members | https://www.unionfacts.com/lu/544095/AFGE/3841/ | |
| Columbia | AFGE | American Federation of Government Employees | Local 1909 | Representing roughly 280 members | https://www.unionfacts.com/lu/501509/AFGE/1909/ | |
| Columbia | AFGE | American Federation of Government Employees | Local 1915 | Representing roughly 1,030 members | https://www.unionfacts.com/lu/501889/AFGE/1915/ | |
| Columbia | AFGE | American Federation of Government Employees | Local 2325 | |||
| Columbia | AFGE | American Federation of Government Employees | Local 29 | https://www.unionfacts.com/lu/502155/AFGE/29/ | ||
| Columbia | AFGE | American Federation of Government Employees | Local 3654 | Represents members employed by the U. S. Department of Housing and Urban Development | https://www.unionfacts.com/lu/541323/AFGE/3654/ | |
| Columbia | AFGE | American Federation of Government Employees | Local 520 | Representing roughly 240 members | https://www.unionfacts.com/lu/542627/AFGE/520/ | |
| Columbia | ANA | American Nurses Association | Representing roughly 1,040 members | https://www.nursingworld.org/ | https://www.unionfacts.com/lu/31186/ANA/0/ | |
| Columbia | ANA | American Nurses Association | To promote the professional status of nurses and to improve health care. | https://www.scnurses.org/default.aspx | https://www.unionfacts.com/lu/31186/ANA/0/ | |
| Columbia | APWU | American Postal Workers Union | Local 807 | Representing roughly 490 members | https://www.unionfacts.com/lu/89605/APWU/807/ | |
| Columbia | APWU | American Postal Workers Union | Representing roughly 110 members | https://www.unionfacts.com/lu/85464/APWU/0/ | ||
| Columbia | BMWE | Brotherhood of Maintenance of Way Employees | Local 562 | Representing roughly 130 members | https://www.unionfacts.com/lu/25686/BMWE/562/ | |
| Columbia | CWA | Communications Workers of America | Local 3706 | |||
| Columbia | IAFF | International Association of Fire Fighters | Local 793 | http://www.iaff793.org/ | ||
| Columbia | IAMAW | International Association of Machinists and Aerospace Workers | Local 379 | https://www.unionfacts.com/lu/542394/IAM/379/ | ||
| Columbia | IAMAW | International Association of Machinists and Aerospace Workers | Local Lodge W 1879 | Representing employees at South Carolina Electric & Gas Fleet Service | https://www.unionfacts.com/lu/56223/IAM/1879/ | |
| Columbia | IAMAW | International Association of Machinists and Aerospace Workers | Local Lodge W 2163 | Representing employees at Hook Up, Inc. | ||
| Columbia | IATSE | International Alliance of Theatrical Stage Employees | Local 347 | Representing roughly 40 members | https://www.unionfacts.com/lu/9157/IATSE/347/ | |
| Columbia | IUPA | International Union of Police Associations | Local 402 | |||
| Columbia | NALC | National Association of Letter Carriers | Local 233 | Representing roughly 450 members | https://www.unionfacts.com/lu/80040/NALC/233/ | |
| Columbia | NAPFE | National Alliance of Postal and Federal Employees | Local 313 | Representing roughly 160 members | https://www.unionfacts.com/lu/90485/NAPFE/313/ | |
| Columbia | NEA | National Education Association | https://www.facebook.com/TheSCEA/ | |||
| Columbia | NFFE | National Federation of Federal Employees | Local 1214 | Representing roughly 50 members | https://www.unionfacts.com/lu/502776/NFFE/1214/ | |
| Columbia | NPMHU | National Postal Mail Handlers Union | Local 334 | |||
| Columbia | NRLCA | National Rural Letter Carriers' Association | Local 2 | Representing roughly 360 members | https://www.unionfacts.com/lu/88676/RLCA/2/ | |
| Columbia | NRLCA | National Rural Letter Carriers' Association | Representing roughly 160 members | https://www.unionfacts.com/lu/88324/RLCA/0/ | ||
| Columbia | NSO | National Staff Organization | The staff union for the employees of The South Carolina Education Association. | http://scsounion.tripod.com/scso/ | ||
| Columbia | NTEU | National Treasury Employees Union | Local 55 | Representing roughly 160 members | https://www.unionfacts.com/lu/502354/NTEU/55/ | |
| Columbia | SCSEA | South Carolina State Employees Association | http://www.scsea.com/ | |||
| Columbia | SCTA | South Carolina Troopers Association | Represents Active/Retired Troopers, Administrative Support & Telecommunications personnel of the South Carolina Highway Patrol. | |||
| Columbia | SMART | International Association of Sheet Metal, Air, Rail and Transportation Workers | Local 45 | Representing roughly 600 members | https://www.unionfacts.com/lu/4890/SMART/45/ | |
| Columbia | UBC | United Brotherhood of Carpenters and Joiners of America | Local 1778 | |||
| Columbia | UTU | United Transportation Union | Local 793 | Representing roughly 70 members | https://www.unionfacts.com/lu/30007/UTU/793/ | |
| Conway | APWU | American Postal Workers Union | Local 2003 | Representing roughly 20 members | https://www.unionfacts.com/lu/92700/APWU/2003/ | |
| Conway | IAFF | International Association of Fire Fighters | Local 4345 | |||
| Conway | IBEW | International Brotherhood of Electrical Workers | Local 1591 | Representing roughly 60 members | https://www.unionfacts.com/lu/514465/IBEW/1591/ | |
| Conway | NALC | National Association of Letter Carriers | Local 3649 | Representing roughly 10 members | https://www.unionfacts.com/lu/90793/NALC/3649/ | |
| Cottageville | BMWE | Brotherhood of Maintenance of Way Employees | Local 2167 | Representing roughly 60 members | https://www.unionfacts.com/lu/4571/BMWE/2167/ | |
| Cowpens | NRLCA | National Rural Letter Carriers' Association | Representing roughly 240 members | https://www.unionfacts.com/lu/88766/RLCA/0/ | ||
| Darlington | FOP | Fraternal Order of Police | Lodge 25 | |||
| Darlington | USW | United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union | Local 1877 | Representing roughly 80 members | https://www.unionfacts.com/lu/61160/USWA/1877/ | |
| Due West | UTU | United Transportation Union | Local 1814 | Representing roughly 20 members | https://www.unionfacts.com/lu/4985/UTU/1814/ | |
| Easley | BMWE | Brotherhood of Maintenance of Way Employees | Local 673 | Representing roughly 30 members | https://www.unionfacts.com/lu/20185/BMWE/673/ | |
| Edgefield | AFGE | American Federation of Government Employees | Local 510 | Representing roughly 160 members | https://www.unionfacts.com/lu/542109/AFGE/510/ | |
| Edgemoor | NALC | National Association of Letter Carriers | Local 3648 | https://www.unionfacts.com/lu/508475/NALC/3648/ | ||
| Estill | AFGE | American Federation of Government Employees | Local 3976 | Representing roughly 200 members | https://www.unionfacts.com/lu/530224/AFGE/3976/ | |
| Eutawville | USW | United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union | Local 508 | Representing roughly 330 members | https://www.unionfacts.com/lu/29951/USWA/508/ | |
| Florence | APWU | American Postal Workers Union | Local 2408 | Representing roughly 110 members | https://www.unionfacts.com/lu/512203/APWU/2408/ | |
| Florence | ATDA | American Train Dispatchers Association | Representing roughly 340 members | https://www.unionfacts.com/lu/530268/ATDA/0/ | ||
| Florence | BLET | Brotherhood Of Locomotive Engineers and Trainmen | Local 265 | Representing roughly 70 members | https://www.unionfacts.com/lu/12006/BLE/265/ | |
| Florence | CWA | Communications Workers of America | Local 3708 | Representing roughly 110 members | https://www.unionfacts.com/lu/27003/CWA/3708/ | |
| Florence | CWA | Communications Workers of America | Local 83276 | Representing roughly 260 members | https://www.unionfacts.com/lu/509738/CWA/83276/ | |
| Florence | IAFF | International Association of Fire Fighters | Local 3352 | |||
| Florence | IAMAW | International Association of Machinists and Aerospace Workers | Local 52 | https://www.unionfacts.com/lu/531832/IAM/52/ | ||
| Florence | IAMAW | International Association of Machinists and Aerospace Workers | Local Lodge W 77 | Represents employees at Koppers Industries | https://www.unionfacts.com/lu/531830/IAM/77/ | |
| Florence | NALC | National Association of Letter Carriers | Local 1416 | Representing roughly 70 members | https://www.unionfacts.com/lu/89950/NALC/1416/ | |
| Florence | NALC | National Association of Letter Carriers | Local 1666 | https://www.unionfacts.com/lu/80704/NALC/1666/ | ||
| Florence | NATCA | National Air Traffic Controllers Association | Local FLO | Representing roughly 10 members | https://www.unionfacts.com/lu/517914/NATCA/0/ | |
| Florence | SMART | International Association of Sheet Metal, Air, Rail and Transportation Workers | Local 942 | Representing roughly 100 members | https://www.unionfacts.com/lu/22378/SMART/942/ | |
| Florence | USW | United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union | Local 1879 | Representing roughly 130 members | https://www.unionfacts.com/lu/61791/USWA/1879/ | |
| Florence | USW | United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union | Local 674 | Representing roughly 110 members | https://www.unionfacts.com/lu/67502/USWA/674/ | |
| Florence | UTU | United Transportation Union | Local 942 | Representing roughly 130 members | https://www.unionfacts.com/lu/22378/UTU/942/ | |
| Fort Jackson | AFGE | American Federation of Government Employees | Local 56 | https://www.unionfacts.com/lu/540817/AFGE/56/ | ||
| Fort Mill | NRLCA | National Rural Letter Carriers' Association | Representing roughly 120 members | https://www.unionfacts.com/lu/88267/RLCA/0/ | ||
| Gaffney | APWU | American Postal Workers Union | Local 1628 | Representing roughly 10 members | https://www.unionfacts.com/lu/537389/APWU/1628/ | |
| Gaffney | GMP | Glass, Molders, Pottery, Plastics and Allied Workers International Union | Local 291 | Representing roughly 50 members | https://www.unionfacts.com/lu/514869/GMP/291/ | |
| Gaffney | NALC | National Association of Letter Carriers | Local 2190 | Representing roughly 30 members | https://www.unionfacts.com/lu/83705/NALC/2190/ | |
| Gaffney | NRLCA | National Rural Letter Carriers' Association | Representing roughly 40 members | https://www.unionfacts.com/lu/88923/RLCA/0/ | ||
| Georgetown | APWU | American Postal Workers Union | Local 1796 | https://www.unionfacts.com/lu/507842/APWU/1796/ | ||
| Georgetown | IAMAW | International Association of Machinists and Aerospace Workers | Local Lodge 1002 | Representing employees at International Paper | ||
| Georgetown | IBEW | International Brotherhood of Electrical Workers | Local 248 | Representing roughly 100 members | https://www.unionfacts.com/lu/46739/IBEW/248/ | |
| Georgetown | OPEIU | Office and Professional Employees International Union | Local 233 | Representing roughly 20 members | https://www.unionfacts.com/lu/39744/OPEIU/233/ | |
| Georgetown | USW | United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union | Local 357 | Representing roughly 100 members | https://www.unionfacts.com/lu/34803/USWA/357/ | |
| Georgetown | USW | United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union | Local 378 | Representing roughly 70 members | https://www.unionfacts.com/lu/40985/USWA/378/ | |
| Georgetown | USW | United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union | Local 477 | https://www.unionfacts.com/lu/22312/USWA/477/ | ||
| Georgetown | USW | United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union | Local 7898 | Represents covered bargaining unit members at the ArcelorMittal plant and amalgamated units. | https://www.unionfacts.com/lu/68961/USWA/7898/ | |
| Gilbert | IBEW | International Brotherhood of Electrical Workers | Local 2277 | https://www.unionfacts.com/lu/66802/IBEW/2277/ | ||
| Gilbert | IBEW | International Brotherhood of Electrical Workers | Local 2290 | https://www.unionfacts.com/lu/67205/IBEW/2290/ | ||
| Goose Creek | AFGE | American Federation of Government Employees | Local 2298 | Representing roughly 190 members | https://www.unionfacts.com/lu/503459/AFGE/2298/ | |
| Goose Creek | IAFF | International Association of Fire Fighters | Local 4158 | https://www.unionfacts.com/lu/543283/IAFF/4158/ | ||
| Goose Creek | SMART | International Association of Sheet Metal, Air, Rail and Transportation Workers | Local 407 | Representing roughly 140 members | https://www.unionfacts.com/lu/5608/SMART/407/ | |
| Goose Creek | UTU | United Transportation Union | Local 407 | Representing roughly 130 members | https://www.unionfacts.com/lu/5608/UTU/407/ | |
| Graniteville | IUOE | International Union of Operating Engineers | Local 470 | Representing roughly 380 members | https://www.unionfacts.com/lu/14978/IUOE/470/ | |
| Graniteville | UGSOA | United Government Security Officers of America, International Union | Local 135 | https://www.unionfacts.com/lu/541639/UGSOA/135/ | ||
| Graniteville | USW | United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union | Local 478 | Representing roughly 20 members | https://www.unionfacts.com/lu/528390/USWA/478/ | |
| Great Falls | NALC | National Association of Letter Carriers | Local 6549 | https://www.unionfacts.com/lu/508476/NALC/6549/ | ||
| Great Falls | NRLCA | National Rural Letter Carriers' Association | https://www.unionfacts.com/lu/88975/RLCA/0/ | |||
| Greenville | AAUP | American Association of University Professors | ||||
| Greenville | AFM | American Federation of Musicians | Local 694 | |||
| Greenville | APWU | American Postal Workers Union | Local 168 | Representing roughly 390 members | https://www.unionfacts.com/lu/506113/APWU/168/ | |
| Greenville | CWA | Communications Workers of America | Local 3710 | Representing roughly 280 members | https://www.unionfacts.com/lu/32807/CWA/3710/ | |
| Greenville | FOP | Fraternal Order of Police | Lodge 17 | Comprised of over 100 members | ||
| Greenville | IATSE | International Alliance of Theatrical Stage Employees | Local 929 | |||
| Greenville | IUPA | International Union of Police Associations | Local 2304 | Representing Law Enforcement Officers, Emergency Personnel, and Support Staff | ||
| Greenville | IUPA | International Union of Police Associations | Local 2803 | Represents sworn city police officers and deputy sheriffs employed by the City and County of Greenville, South Carolina. | ||
| Greenville | NALC | National Association of Letter Carriers | Local 439 | Representing roughly 290 members | https://www.unionfacts.com/lu/80701/NALC/439/ | |
| Greenville | NAPFE | National Alliance of Postal and Federal Employees | Local 319 | Representing roughly 30 members | https://www.unionfacts.com/lu/91775/NAPFE/319/ | |
| Greenville | NATCA | National Air Traffic Controllers Association | https://www.unionfacts.com/lu/544135/NATCA/0/ | |||
| Greenville | NATCA | National Air Traffic Controllers Association | https://www.unionfacts.com/lu/545218/NATCA/0/ | |||
| Greenville | NRLCA | National Rural Letter Carriers' Association | https://www.unionfacts.com/lu/88816/RLCA/0/ | |||
| Greenville | PACE | Paper, Allied-Industrial, Chemical and Energy Workers International Union | Local 650 | https://www.unionfacts.com/lu/16764/PACE/650/ | ||
| Greenwood | BLET | Brotherhood Of Locomotive Engineers and Trainmen | Local 498 | Representing roughly 130 members | https://www.unionfacts.com/lu/10380/BLE/498/ | |
| Greenwood | BLET | Brotherhood Of Locomotive Engineers and Trainmen | Representing roughly 1,050 members | https://www.unionfacts.com/lu/511737/BLE/0/ | ||
| Greenwood | NALC | National Association of Letter Carriers | Local 1145 | Representing roughly 20 members | https://www.unionfacts.com/lu/83749/NALC/1145/ | |
| Greer | APWU | American Postal Workers Union | Local 2225 | https://www.unionfacts.com/lu/506034/APWU/2225/ | ||
| Greer | BLET | Brotherhood Of Locomotive Engineers and Trainmen | Local 84 | Representing roughly 40 members | https://www.unionfacts.com/lu/26149/BLE/84/ | |
| Greer | NALC | National Association of Letter Carriers | Local 2553 | Representing roughly 30 members | https://www.unionfacts.com/lu/91023/NALC/2553/ | |
| Greer | NATCA | National Air Traffic Controllers Association | Local GSP | Representing roughly 20 members | https://www.unionfacts.com/lu/517971/NATCA/0/ | |
| Greer | NWSEO | National Weather Service Employees Organization | Local 40 | https://www.unionfacts.com/lu/515666/NWSEO/40/ | ||
| Hampton | IBEW | International Brotherhood of Electrical Workers | Local 1649 | Representing roughly 30 members | https://www.unionfacts.com/lu/516482/IBEW/1649/ | |
| Hampton | NALC | National Association of Letter Carriers | Local 6113 | https://www.unionfacts.com/lu/83555/NALC/6113/ | ||
| Hanahan | FOP | Fraternal Order of Police | Lodge 3 | https://www.scfop3.org/ | ||
| Hanahan | NALC | National Association of Letter Carriers | Representing roughly 2,070 members | https://www.unionfacts.com/lu/81574/NALC/0/ | ||
| Hartsville | NRLCA | National Rural Letter Carriers' Association | Representing roughly 110 members | https://www.unionfacts.com/lu/88591/RLCA/0/ | ||
| Hartsville | NRLCA | National Rural Letter Carriers' Association | Representing roughly 50 members | https://www.unionfacts.com/lu/88256/RLCA/0/ | ||
| Heming Way | NRLCA | National Rural Letter Carriers' Association | Local 6 | Representing roughly 410 members | https://www.unionfacts.com/lu/88960/RLCA/6/ | |
| Hemingway | IAMAW | International Association of Machinists and Aerospace Workers | Local 1002 | Representing roughly 50 members | https://www.unionfacts.com/lu/36828/IAM/1002/ | |
| Hemingway | NALC | National Association of Letter Carriers | Local 5826 | https://www.unionfacts.com/lu/80047/NALC/5826/ | ||
| Hilton Head Island | APWU | American Postal Workers Union | Local 7076 | Representing roughly 20 members | https://www.unionfacts.com/lu/514985/APWU/7076/ | |
| Huger | NRLCA | National Rural Letter Carriers' Association | Local 1 | Representing roughly 440 members | https://www.unionfacts.com/lu/88212/RLCA/1/ | |
| Inman | NRLCA | National Rural Letter Carriers' Association | Representing roughly 20 members | https://www.unionfacts.com/lu/88286/RLCA/0/ | ||
| Irmo | BLET | Brotherhood Of Locomotive Engineers and Trainmen | Local 85 | Representing roughly 30 members | https://www.unionfacts.com/lu/13450/BLE/85/ | |
| Jackson | SPFPA | International Union, Security, Police, and Fire Professionals of America | Local 330 | Represent employees at the DOE - Department of Energy Security Unit, Savannah River Site | ||
| Johns Island | PACE | Paper, Allied-Industrial, Chemical and Energy Workers International Union | Local 663 | https://www.unionfacts.com/lu/20406/PACE/663/ | ||
| Johns Island Sc 29455 | AFM | American Federation of Musicians | Local 502 | Representing roughly 50 members | https://www.unionfacts.com/lu/59406/AFM/502/ | |
| Jonesville | GMP | Glass, Molders, Pottery, Plastics and Allied Workers International Union | Local 387 | Representing roughly 40 members | https://www.unionfacts.com/lu/511850/GMP/387/ | |
| Kershaw | NALC | National Association of Letter Carriers | Local 3822 | https://www.unionfacts.com/lu/83127/NALC/3822/ | ||
| Kingstree | NALC | National Association of Letter Carriers | Local 4223 | https://www.unionfacts.com/lu/83128/NALC/4223/ | ||
| Ladson | BBF | International Brotherhood of Boilermakers, Iron Ship Builders,. Blacksmiths, Forgers, & Helpers | https://www.unionfacts.com/lu/542395/BBF/0/ | |||
| Ladson | IAMAW | International Association of Machinists and Aerospace Workers | Local 787 | https://www.unionfacts.com/lu/544129/IAM/787/ | ||
| Lake View | IBEW | International Brotherhood of Electrical Workers | Local 382 | https://www.unionfacts.com/lu/37155/IBEW/382/ | ||
| Lancaster | APWU | American Postal Workers Union | Local 2214 | https://www.unionfacts.com/lu/86453/APWU/2214/ | ||
| Lancaster | NALC | National Association of Letter Carriers | Local 2533 | Representing roughly 10 members | https://www.unionfacts.com/lu/80712/NALC/2533/ | |
| Landrum | CWA | Communications Workers of America | Local 83709 | https://www.unionfacts.com/lu/542258/CWA/83709/ | ||
| Lane | USW | United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union | Local 377 | Representing roughly 300 members | https://www.unionfacts.com/lu/14415/USWA/377/ | |
| Laurens | APWU | American Postal Workers Union | Local 1649 | https://www.unionfacts.com/lu/540036/APWU/1649/ | ||
| Laurens | NALC | National Association of Letter Carriers | Local 1914 | https://www.unionfacts.com/lu/83129/NALC/1914/ | ||
| Laurens | NRLCA | National Rural Letter Carriers' Association | https://www.unionfacts.com/lu/88287/RLCA/0/ | |||
| Laurens | NSO | National Staff Organization | https://www.unionfacts.com/lu/530361/NSOI/0/ | |||
| Lexington | IBEW | International Brotherhood of Electrical Workers | Local 772 | Representing roughly 360 members | https://www.unionfacts.com/lu/53061/IBEW/772/ | |
| Lexington | SMART | International Association of Sheet Metal, Air, Rail and Transportation Workers | Local 793 | Representing roughly 60 members | https://www.unionfacts.com/lu/30007/SMART/793/ | |
| Lodge | IBEW | International Brotherhood of Electrical Workers | Local 1431 | Representing roughly 140 members | https://www.unionfacts.com/lu/32525/IBEW/1431/ | |
| Loris | NALC | National Association of Letter Carriers | Local 3927 | https://www.unionfacts.com/lu/508479/NALC/3927/ | ||
| Mccoll | NALC | National Association of Letter Carriers | Local 5857 | https://www.unionfacts.com/lu/80711/NALC/5857/ | ||
| Moncks Corner | IAMAW | International Association of Machinists and Aerospace Workers | Local 183 | Representing roughly 60 members | https://www.unionfacts.com/lu/4560/IAM/183/ | |
| Mount Pleasant | BBF | International Brotherhood of Boilermakers, Iron Ship Builders,. Blacksmiths, Forgers, & Helpers | Local 76 | https://www.unionfacts.com/lu/12254/BBF/76/ | ||
| Mrytle Beach | FOP | Fraternal Order of Police | Lodge 12 | |||
| Mt Pleasant | APWU | American Postal Workers Union | Local 5591 | Representing roughly 10 members | https://www.unionfacts.com/lu/507994/APWU/5591/ | |
| Mt Pleasant | BBF | International Brotherhood of Boilermakers, Iron Ship Builders,. Blacksmiths, Forgers, & Helpers | Local 586 | Representing roughly 20 members | https://www.unionfacts.com/lu/5895/BBF/586/ | |
| Mt Pleasant | NAGE/SEIU | National Association of Government Employees / Service Employees International Union | Local 150 | Representing roughly 100 members | https://www.unionfacts.com/lu/541763/NAGE/150/ | |
| Mt Pleasant | UTU | United Transportation Union | Local 45 | Representing roughly 630 members | https://www.unionfacts.com/lu/4890/UTU/45/ | |
| Mt. Pleasanst | BBF | International Brotherhood of Boilermakers, Iron Ship Builders,. Blacksmiths, Forgers, & Helpers | Local 229 | Representing roughly 10 members | https://www.unionfacts.com/lu/3863/BBF/229/ | |
| Myrtle Beach | APWU | American Postal Workers Union | Local 2755 | Representing roughly 40 members | https://www.unionfacts.com/lu/512792/APWU/2755/ | |
| Myrtle Beach | NALC | National Association of Letter Carriers | Branch 4645 | Representing roughly 50 members | http://www.pcpages.com/br4645/ | https://www.unionfacts.com/lu/80710/NALC/4645/ |
| Myrtle Beach | NATCA | National Air Traffic Controllers Association | Representing roughly 20 members | https://www.unionfacts.com/lu/529388/NATCA/0/ | ||
| Myrtle Beach | NRLCA | National Rural Letter Carriers' Association | Representing roughly 230 members | https://www.unionfacts.com/lu/545232/RLCA/0/ | ||
| N Charleston | APWU | American Postal Workers Union | Local 566 | Representing roughly 240 members | https://www.unionfacts.com/lu/72120/APWU/566/ | |
| N Charleston | CWA | Communications Workers of America | Local 3704 | Representing roughly 250 members | https://www.unionfacts.com/lu/41649/CWA/3704/ | |
| N. Charleston | UA | United Association of Journeymen and Apprentices of the Plumbing, Pipefitting and Sprinkler Fitting Industry | Local 421 | Representing roughly 1,270 members | https://www.unionfacts.com/lu/541236/PPF/421/ | |
| New Ellenton | IUPAT | International Union of Painters and Allied Trades | Local 1756 | Representing roughly 460 members | https://www.unionfacts.com/lu/33070/PAT/1756/ | |
| New Ellenton | IUPAT | International Union of Painters and Allied Trades | Local 1946 | Representing roughly 70 members | https://www.unionfacts.com/lu/64774/PAT/1946/ | |
| Newberry | UFCW | United Food and Commercial Workers | Local 2014 | Representing roughly 100 members | https://www.unionfacts.com/lu/7153/UFCW/2014/ | |
| North Augusta | AWIU | International Association of Heat & Frost Insulators & Allied Workers | Local 92 | Representing roughly 80 members | https://www.unionfacts.com/lu/31384/HFIA/92/ | |
| North Augusta | NALC | National Association of Letter Carriers | Local 5823 | Representing roughly 20 members | https://www.unionfacts.com/lu/80709/NALC/5823/ | |
| North Augusta | USW | United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union | Local 983 | Representing roughly 320 members | https://www.unionfacts.com/lu/56946/USWA/983/ | |
| North Charleston | AFGE | American Federation of Government Employees | Local 2510 | Representing roughly 30 members | https://www.unionfacts.com/lu/501838/AFGE/2510/ | |
| North Charleston | BLET | Brotherhood Of Locomotive Engineers and Trainmen | Local 321 | Representing roughly 30 members | https://www.unionfacts.com/lu/507068/BLE/321/ | |
| North Charleston | BSOIW | International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers | Local 848 | Representing roughly 200 members | https://www.unionfacts.com/lu/543605/BSOIW/848/ | |
| North Charleston | IAFF | International Association of Fire Fighters | Local 4423 | |||
| North Charleston | NAGE/SEIU | National Association of Government Employees / Service Employees International Union | Local 145 | Representing roughly 50 members | https://www.unionfacts.com/lu/542763/NAGE/145/ | |
| North Charleston | NATCA | National Air Traffic Controllers Association | Representing roughly 30 members | https://www.unionfacts.com/lu/519307/NATCA/0/ | ||
| North Charleston | SMART | International Association of Sheet Metal, Air, Rail and Transportation Workers | Local 399 | Representing roughly 480 members | https://www.unionfacts.com/lu/12776/SMART/399/ | |
| North Charleston | UA | United Association of Journeymen and Apprentices of the Plumbing, Pipefitting and Sprinkler Fitting Industry | https://www.unionfacts.com/lu/60129/PPF/0/ | |||
| North Charleston | UBC | United Brotherhood of Carpenters and Joiners of America | Local 2221 | https://www.unionfacts.com/lu/508549/CJA/2221/ | ||
| North Charleston | USW | United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union | Local 1435 | Representing roughly 190 members | https://www.unionfacts.com/lu/46525/USWA/1435/ | |
| North Myrtle Beach | NATCA | National Air Traffic Controllers Association | https://www.unionfacts.com/lu/543292/NATCA/0/ | |||
| Orangeburg | CWA | Communications Workers of America | Local 3719 | Representing roughly 100 members | https://www.unionfacts.com/lu/32517/CWA/3719/ | |
| Orangeburg | NALC | National Association of Letter Carriers | Local 1782 | Representing roughly 40 members | https://www.unionfacts.com/lu/80708/NALC/1782/ | |
| Parris Island | AFGE | American Federation of Government Employees | Local 429 | Representing roughly 40 members | https://www.unionfacts.com/lu/503205/AFGE/429/ | |
| Pawleys Island | IAFF | International Association of Fire Fighters | Local 3617 | |||
| Pelion | USW | United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union | Local 713 | https://www.unionfacts.com/lu/508779/USWA/713/ | ||
| Pelzer | SMART | International Association of Sheet Metal, Air, Rail and Transportation Workers | Local 931 | Representing roughly 90 members | https://www.unionfacts.com/lu/46920/SMART/931/ | |
| Pelzer | UTU | United Transportation Union | Local 931 | Representing roughly 90 members | https://www.unionfacts.com/lu/46920/UTU/931/ | |
| Pickens | BLET | Brotherhood Of Locomotive Engineers and Trainmen | Local 598 | Representing roughly 50 members | https://www.unionfacts.com/lu/517749/BLE/598/ | |
| Piedmont | NRLCA | National Rural Letter Carriers' Association | Representing roughly 250 members | https://www.unionfacts.com/lu/88291/RLCA/0/ | ||
| Prosperity | NRLCA | National Rural Letter Carriers' Association | Representing roughly 30 members | https://www.unionfacts.com/lu/88288/RLCA/0/ | ||
| Quinby | NAPFE | National Alliance of Postal and Federal Employees | Local 304 | Representing roughly 40 members | https://www.unionfacts.com/lu/540053/NAPFE/304/ | |
| Rembert | NRLCA | National Rural Letter Carriers' Association | Representing roughly 50 members | https://www.unionfacts.com/lu/88673/RLCA/0/ | ||
| Rock Hill | BBF | International Brotherhood of Boilermakers, Iron Ship Builders,. Blacksmiths, Forgers, & Helpers | Local 687 | Representing roughly 330 members | https://www.unionfacts.com/lu/6617/BBF/687/ | |
| Rock Hill | IAMAW | International Association of Machinists and Aerospace Workers | Local 263 | Representing roughly 150 members | https://www.unionfacts.com/lu/40184/IAM/263/ | |
| Rock Hill | NRLCA | National Rural Letter Carriers' Association | Local 5 | Representing roughly 350 members | https://www.unionfacts.com/lu/89003/RLCA/5/ | |
| Rock Hill | SMART | International Association of Sheet Metal, Air, Rail and Transportation Workers | Local 1971 | Representing roughly 220 members | https://www.unionfacts.com/lu/24434/SMART/1971/ | |
| Rock Hill | USW | United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union | Local 1924 | Representing roughly 310 members | https://www.unionfacts.com/lu/54896/USWA/1924/ | |
| Rock Hill | UTU | United Transportation Union | Local 1971 | Representing roughly 220 members | https://www.unionfacts.com/lu/24434/UTU/1971/ | |
| Rock Hill | WU | Workers United | Local 1093 | Representing roughly 40 members | https://www.unionfacts.com/lu/30815/WU/1093/ | |
| Rock Hill Sc | PACE | Paper, Allied-Industrial, Chemical and Energy Workers International Union | Local 1099 | Representing roughly 20 members | https://www.unionfacts.com/lu/71208/PACE/1099/ | |
| Ruby | NALC | National Association of Letter Carriers | Local 5104 | https://www.unionfacts.com/lu/508481/NALC/5104/ | ||
| Russellville | IAMAW | International Association of Machinists and Aerospace Workers | Local Lodge W 52 | Represents employees at Georgia Pacific-Studmill & Georgia Pacific-Plywood | ||
| Salters | AFGE | American Federation of Government Employees | Local 525 | Representing roughly 150 members | https://www.unionfacts.com/lu/543771/AFGE/525/ | |
| Saluda | NALC | National Association of Letter Carriers | Local 4974 | https://www.unionfacts.com/lu/83117/NALC/4974/ | ||
| Shaw Afb | AFGE | American Federation of Government Employees | Local 1872 | Representing roughly 150 members | https://www.unionfacts.com/lu/501030/AFGE/1872/ | |
| Silverstreet | USW | United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union | Local 1425 | https://www.unionfacts.com/lu/67581/USWA/1425/ | ||
| Simpsonville | NALC | National Association of Letter Carriers | Local 5527 | https://www.unionfacts.com/lu/83149/NALC/5527/ | ||
| Simpsonville | NRLCA | National Rural Letter Carriers' Association | Local 4 | Representing roughly 490 members | https://www.unionfacts.com/lu/89038/RLCA/4/ | |
| Spartanburg | APWU | American Postal Workers Union | Local 403 | https://www.unionfacts.com/lu/72129/APWU/403/ | ||
| Spartanburg | BMWE | Brotherhood of Maintenance of Way Employees | Local 2426 | Representing roughly 40 members | https://www.unionfacts.com/lu/544677/BMWE/2426/ | |
| Spartanburg | CWA | Communications Workers of America | Local 3716 | Represents employees of BellSouth Telecommunications | https://www.unionfacts.com/lu/24142/CWA/3716/ | |
| Spartanburg | GMP | Glass, Molders, Pottery, Plastics and Allied Workers International Union | Local 291 | Represents employees of Spartanburg Steel Products, Inc and Spartanburg Stainless Products, Inc. | ||
| Spartanburg | NALC | National Association of Letter Carriers | Local 628 | Representing roughly 70 members | https://www.unionfacts.com/lu/80705/NALC/628/ | |
| St. George | USW | United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union | Local 216 | Representing roughly 80 members | https://www.unionfacts.com/lu/40134/USWA/216/ | |
| Summerville | BCTGM | Bakery, Confectionery, Tobacco Workers and Grain Millers' International Union | Local 503 | Representing roughly 330 members | https://www.unionfacts.com/lu/28687/BCTGMI/503/ | |
| Summerville | IAMAW | International Association of Machinists and Aerospace Workers | Local 2017 | Representing roughly 40 members | https://www.unionfacts.com/lu/544158/IAM/2017/ | |
| Sumter | AFGE | American Federation of Government Employees | Local 2325 | |||
| Sumter | APWU | American Postal Workers Union | Local 795 | Representing roughly 10 members | https://www.unionfacts.com/lu/71421/APWU/795/ | |
| Sumter | CWA | Communications Workers of America | Local 83175 | Representing roughly 250 members | https://www.unionfacts.com/lu/42705/CWA/83175/ | |
| Sumter | NALC | National Association of Letter Carriers | Local 904 | Representing roughly 40 members | https://www.unionfacts.com/lu/83556/NALC/904/ | |
| Sumter | NAPFE | National Alliance of Postal and Federal Employees | Local 326 | https://www.unionfacts.com/lu/91700/NAPFE/326/ | ||
| Taylors | IBT | International Brotherhood of Teamsters | Local 28 | Representing roughly 1,200 members | https://www.unionfacts.com/lu/67492/IBT/28/ | |
| Tega Cay | USW | United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union | Local 1089 | Representing roughly 60 members | https://www.unionfacts.com/lu/66537/USWA/1089/ | |
| Upper Piedmont | APWU | American Postal Workers Union | Local 168 | |||
| Wagener | NRLCA | National Rural Letter Carriers' Association | Local 3 | Representing roughly 500 members | https://www.unionfacts.com/lu/88333/RLCA/3/ | |
| Wagener | NRLCA | National Rural Letter Carriers' Association | Representing roughly 2,640 members | https://www.unionfacts.com/lu/88992/RLCA/0/ | ||
| Wallace | TCU-IAMAW | Transportation Communications International Union / International Association of Machinists and Aerospace Workers | Local 115 | https://www.unionfacts.com/lu/40984/TCU/IAM/115/ | ||
| Walterboro | IATSE | International Alliance of Theatrical Stage Employees | Local 929 | https://www.unionfacts.com/lu/540483/IATSE/929/ | ||
| Walterboro | NALC | National Association of Letter Carriers | Local 6123 | https://www.unionfacts.com/lu/83119/NALC/6123/ | ||
| West Columbia | CWA | Communications Workers of America | Local 3706 | Representing roughly 390 members | https://www.unionfacts.com/lu/17682/CWA/3706/ | |
| West Columbia | IBT | International Brotherhood of Teamsters | Local 509 | Representing roughly 4,220 members | https://www.unionfacts.com/lu/36315/IBT/509/ | |
| West Columbia | NALC | National Association of Letter Carriers | Local 4616 | Representing roughly 50 members | https://www.unionfacts.com/lu/80721/NALC/4616/ | |
| West Columbia | NATCA | National Air Traffic Controllers Association | Representing roughly 30 members | https://www.unionfacts.com/lu/518078/NATCA/0/ | ||
| West Columbia | NPMHU | National Postal Mail Handlers Union | Local 334 | Representing roughly 2,650 members | https://www.unionfacts.com/lu/515169/NPMHU/334/ | |
| West Columbia | NWSEO | National Weather Service Employees Organization | Local 3 | https://www.unionfacts.com/lu/515631/NWSEO/3/ | ||
| Westminster | NRLCA | National Rural Letter Carriers' Association | Representing roughly 260 members | https://www.unionfacts.com/lu/89066/RLCA/0/ | ||
| Whitmire | NALC | National Association of Letter Carriers | Local 4119 | https://www.unionfacts.com/lu/80720/NALC/4119/ | ||
| Williamston | NALC | National Association of Letter Carriers | Local 4975 | https://www.unionfacts.com/lu/91319/NALC/4975/ | ||
| Winnsboro | BMWE | Brotherhood of Maintenance of Way Employees | Local 1618 | Representing roughly 50 members | https://www.unionfacts.com/lu/21199/BMWE/1618/ | |
| Winnsboro | IAMAW | International Association of Machinists and Aerospace Workers | Local 2163 | https://www.unionfacts.com/lu/55825/IAM/2163/ | ||
| Winnsboro | UFCW | United Food and Commercial Workers | Local 1800 | Representing roughly 100 members | https://www.unionfacts.com/lu/36777/UFCW/1800/ | |
| Winnsboro City | NALC | National Association of Letter Carriers | Local 2745 | https://www.unionfacts.com/lu/83123/NALC/2745/ | ||
| Woodruff | NALC | National Association of Letter Carriers | Local 3393 | https://www.unionfacts.com/lu/90721/NALC/3393/ | ||
| Yemassee | NRLCA | National Rural Letter Carriers' Association | Representing roughly 40 members | https://www.unionfacts.com/lu/511367/RLCA/0/ | ||
| York | IAMAW | International Association of Machinists and Aerospace Workers | https://www.unionfacts.com/lu/17100/IAM/0/ | |||
| York | NALC | National Association of Letter Carriers | Local 1003 | Representing roughly 50 members | https://www.unionfacts.com/lu/80707/NALC/1003/ | |
| York | NALC | National Association of Letter Carriers | Local 2804 | https://www.unionfacts.com/lu/80719/NALC/2804/ |
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