Union County, Kentucky

Union County
County
Union County Courthouse
Location within the U.S. state of Kentucky
Kentucky's location within the U.S.
Coordinates: 37°40′N 87°57′W / 37.66°N 87.95°W / 37.66; -87.95
Country	United States
State	Kentucky
Founded	January 15, 1811
Seat	Morganfield
Largest city	Morganfield
Area
• Total	363.38 sq mi (941.1 km2)
• Land	342.85 sq mi (888.0 km2)
• Water	20.53 sq mi (53.2 km2)  5.6%
Population  (2020)
• Total	13,668
• Estimate  (2023)	13,106
• Density	38/sq mi (15/km2)
Time zone	UTC−6 (Central)
• Summer (DST)	UTC−5 (CDT)
Congressional district	1st
Website	www.unioncountyky.org

Union County is a county in the U.S. state of Kentucky. As of the 2020 census, the population was 13,668.^[1] Its county seat is Morganfield.^[2] The county was created effective January 15, 1811.

The county is located on the east bank of the Ohio River opposite its confluence with the Wabash River. Union County, along with neighboring Posey County, Indiana, and Gallatin County, Illinois, form the tri-point of the Illinois-Indiana-Kentucky Tri-State Area.