Union County Post Offices

857 Main St
Buffalo, South Carolina 29321

4512 King Kennedy St
Carlisle, South Carolina 29031

635 Union Hwy
Cross Anchor, South Carolina 29331

2912 Furman L Fendley Hwy
Jonesville, South Carolina 29353

404 S 2nd St
Lockhart, South Carolina 29364

804 Industrial Park Rd
Union, South Carolina 29379

Union County

There are 6 US Post Offices in Union County serving a total of 28,039 residents equating to 4,673 residents per post office. It's estimated that approximately 44,753 packages are handled across the 6 county post offices annually. Union County is a county located in the U.S. state of South Carolina. As of the 2010 census, the population was 28,961. Its county seat is Union. The county was created in 1785. Union County is included in the Spartanburg, SC Metropolitan Statistical Area, which is also included in the Greenville\u2013Spartanburg\u2013Anderson, SC Combined Statistical Area."