Union County | |
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Union County Courthouse in El Dorado | |
![]() Location within the U.S. state of Arkansas | |
![]() Arkansas's location within the U.S. | |
Coordinates: 33°11′14″N 92°35′29″W / 33.187222222222°N 92.591388888889°W | |
Country | ![]() |
State | ![]() |
Founded | November 2, 1829 |
Seat | El Dorado |
Largest city | El Dorado |
Area | |
• Total | 1,055 sq mi (2,730 km2) |
• Land | 1,039 sq mi (2,690 km2) |
• Water | 16 sq mi (40 km2) 1.5% |
Population | |
• Total | 39,054 |
• Density | 40/sq mi (20/km2) |
Time zone | UTC−6 (Central) |
• Summer (DST) | UTC−5 (CDT) |
Website | www |
Union County is a county of the U.S. state of Arkansas. As of the 2020 census, the population was 39,054.[1] The county seat is El Dorado. It was founded on November 2, 1829.