Posey County, Indiana

Posey County
County
Posey County Courthouse in Mount Vernon
Location within the U.S. state of Indiana
Indiana's location within the U.S.
Coordinates: 38°01′N 87°52′W / 38.02°N 87.86°W / 38.02; -87.86
Country	United States
State	Indiana
Founded	November 11, 1814
Named for	Thomas Posey
Seat	Mount Vernon
Largest city	Mount Vernon
Area
• Total	419.32 sq mi (1,086.0 km2)
• Land	409.57 sq mi (1,060.8 km2)
• Water	9.75 sq mi (25.3 km2)
Population  (2020)
• Total	25,222
• Density	60/sq mi (23/km2)
Time zone	UTC−6 (Central)
• Summer (DST)	UTC−5 (CDT)
Congressional district	8th
Website	www.poseycountyin.gov
Indiana county number 65 Southernmost county in Indiana Westernmost county in Indiana Lowest point in Indiana located at county's southwestern tip

Posey County is the southernmost, southwesternmost, and westernmost county in the U.S. state of Indiana. Its southern border is formed by the Ohio River, and its western border by the Wabash River, a tributary to the Ohio. As of 2020, the population was 25,222.^[1] The county seat is Mount Vernon.^[2]

Posey County is part of the Evansville, Indiana metropolitan statistical area. The Ports of Indiana-Mount Vernon, on the Ohio River, is the seventh-largest inland port complex in the nation. Mechanization of dock technology has altered the number of workers at the port, but Posey County is still the seventh-largest internal port in the United States, based on the tons of materials handled. Grain from the Midwest is among the products shipped.