Union County, Florida

Union County, Florida, has 16,250 residents (July 2025 estimate). Its county seat is Lake Butler. It uses Eastern Time and covers 244 sq mi (632 km²) of land.

JacksonvilleMiamiTampa
Union County in Florida
Bradford CountyLake ButlerRaifordWorthington Springs
Union County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
16,250
Land area
244 sq mi (632 km²)
County seat or government
Lake Butler
Time zone
Eastern TimeUTC-05:00 in January; UTC-04:00 in July
Median household income
$64,146 ± $6,434
Median home value
$169,500 ± $17,769
Median rent, with utilities
$894 ± $158
Homes lived in by their owners
74.7% ± 5.1 points
County type
County
Metro or micro area
Outside any metro or micro areaNext to: Lake City, FL micro area, Gainesville, FL metro area, and Jacksonville, FL metro area
Water area
5.86 sq mi (15.2 km²)
State
Florida
County code (FIPS)
12125
Coordinates (central point)
30.054280, -82.366918

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. 3205412,581 people
  2. 320584,655 people
  3. 320263,311 people
  4. 320832,561 people
  5. 32697189 people

5 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 District15,701 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. Lake Butler, Florida (city)1,601 people
  2. Raiford, Florida (town)382 people
  3. Worthington Springs, Florida (town)279 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Bradford County, Florida14 mi southeast
  2. Baker County, Florida19 mi north
  3. Columbia County, Florida19 mi northwest
  4. Alachua County, Florida26 mi south

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.