Zip Area Code

Union County, South Carolina

Union County, South Carolina, has 5 towns and 5 ZIP codes, in area code 864, with 821 as an overlay.

Towns in Union County, A to Z

TownZIP codesArea codes
Buffalo29321864, 821
Jonesville29353, 29395864, 821
Lockhart29364864, 821
Monarch Millnearest29379864, 821
Union29379864, 821

ZIP codes in Union County

Area codes in Union County

  • Area code 864

    In service since December 3, 1995. Shares its area with 821. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 821

    In service since August 19, 2024. Shares its area with 864. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.