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Where am ILOCATED

Union County, South Carolina

Union County, South Carolina, has 26,799 residents (July 2025 estimate). Its county seat is Union. It uses Eastern Time and covers 514 sq mi (1,330 km²) of land.

CharlestonColumbiaNorth Charleston
Union County in South Carolina
Chester CountyLaurens CountyUnionBuffaloJonesvilleCarlisle
Union County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
26,799
Land area
514 sq mi (1,330 km²)
County seat or government
Union
Time zone
Eastern TimeUTC-05:00 in January; UTC-04:00 in July
Median household income
$41,621 ± $3,477
Median home value
$103,600 ± $6,425
Median rent, with utilities
$804 ± $142
Homes lived in by their owners
71.3% ± 2.8 points
County type
County
Metro or micro area
Spartanburg, SC metro areaOutlying county
Water area
1.73 sq mi (4.49 km²)
State
South Carolina
County code (FIPS)
45087
Coordinates (central point)
34.690374, -81.615864
Open this point in the location finder

These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.

Time zones in Union County

Time zoneLocal time and UTC offsetNext clock change
Eastern TimeAmerica/New_YorkUTC-05:00 in January; UTC-04:00 in July. Enable JavaScript for the live clock.Enable JavaScript for upcoming changes.

Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.

ZIP Code areas, largest first

  1. 2937917,607 people
  2. 293355,472 people
  3. 293533,675 people
  4. 293723,552 people
  5. 291783,280 people
  6. 293213,236 people
  7. 293743,079 people
  8. 290311,617 people
  9. 29364553 people

9 ZIP Code areas overlap Union County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.

Official county information

We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

School districts in Union County, largest first

  1. Union County School District26,885 people

Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

  1. Union, South Carolina (city)8,079 people
  2. Monarch Mill, South Carolina (CDP)1,822 people
  3. Buffalo, South Carolina (CDP)1,329 people
  4. Jonesville, South Carolina (town)1,118 people
  5. Carlisle, South Carolina (town)494 people
  6. Lockhart, South Carolina (town)405 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Cherokee County, South Carolina25 mi north
  2. Chester County, South Carolina26 mi east
  3. Laurens County, South Carolina26 mi southwest
  4. Spartanburg County, South Carolina27 mi northwest
  5. Newberry County, South Carolina28 mi south
  6. York County, South Carolina31 mi northeast
  7. Fairfield County, South Carolina34 mi southeast

Before using this answer on a form

Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.