Union County, Florida
County seat: Lake Butler · Population 16,250 (2025) · 244 sq mi
Union County is the 59th most populous of Florida's 67 counties, with 16,250 people (2025 estimate). Its county seat is Lake Butler. It is part of the North Central Florida region, one of the 10 Florida regional planning council regions. The map shows its 3 cities and towns and the 4 neighboring counties.
Union County facts
- County seat
- Lake Butler
- Population (2025 estimate)
- 16,250 +0.7% since 2020
- Land area
- 244 sq mi 67th largest of 67
- Water area
- 6 sq mi
- Population density
- 67 per sq mi
- Established
- 1921
- Largest city
- Lake Butler 1,921
- Median household income
- $64,146
- Cities and towns
- 3
- ZIP codes
- 5
- Time zone
- Eastern
- FIPS code
- 12125
Cities and towns in Union County
Union County has 3 incorporated cities, towns and villages. Populations count the people living inside Union County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Lake Butler (county seat) | City | 1,921 | |
| Worthington Springs | Town | 380 | |
| Raiford | Town | 226 |
ZIP codes in Union County
5 ZIP codes reach into Union County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 32026 also Bradford County
- 32054 also Bradford County
- 32058 also Bradford and Clay counties
- 32083 also Bradford County
- 32697
Population of Union County, 2020–2025
Union County grew by 105 people (+0.7%) between April 2020 and July 2025: 602 more deaths than births and a net gain of 825 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 15,442 |
| 2021 | 15,874 |
| 2022 | 15,490 |
| 2023 | 15,992 |
| 2024 | 15,765 |
| 2025 | 16,250 |
Neighboring counties
- Bradford County southeast · 28,307 people
- Columbia County northwest · 74,094 people
- Baker County north · 29,737 people
- Alachua County south · 290,028 people
Printable Union County map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (104 KB)
- PNG (2400 px) (64 KB)
Paste this code to embed the map on your site:
Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
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