Union County
Also known as Union County, South Carolina, Union County, SC
county in South Carolina, United States
Key facts
- Country
- United States
- State
- South Carolina
- Named after
- The old Union Church
- Seat
- Union
- Largest community
- Union
- Total
- 515.44 sq mi (1,335.0 km )
- Land
- 513.59 sq mi (1,330.2 km )
- Water
- 1.85 sq mi (4.8 km ) 0.36%
- Estimate 2025
- 26,799
- Density
- 53.046/sq mi (20.481/km )
- Time zone
- UTC−5 ( Eastern )
- Summer dst
- UTC−4 ( EDT )
- Congressional district
Article
Union County is a county located in the U.S. state of South Carolina. As of the 2020 census, the population was 27,244. 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 part of the Greenville-Spartanburg-Anderson, SC Combined Statistical Area.