Union County, Florida

Union County, Florida
Location within the U.S. state of Florida
Coordinates: 30°02′N 82°22′W / 30.04°N 82.37°W / 30.04; -82.37
Country United States
State Florida
FoundedMay 20, 1921
Named afterConcept of Unity
SeatLake Butler
Largest cityLake Butler
Area
 • Total
250 sq mi (650 km2)
 • Land244 sq mi (630 km2)
 • Water6.2 sq mi (16 km2)  2.5%
Population
 (2020)
 • Total
16,147
 • Estimate 
(2023)
15,532
 • Density66.2/sq mi (25.6/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (EDT)
Congressional district3rd
Websitewww.unioncounty-fl.gov

Union County is a county located in the north central portion of the U.S. state of Florida, the smallest in the state by area. As of the 2020 census, the population was 16,147. The county seat is Lake Butler.