Perry County, Missouri

Perry County
Perry County courthouse in Perryville
Location within the U.S. state of Missouri
Missouri's location within the U.S.
Coordinates: 37°43′N 89°50′W / 37.71°N 89.83°W / 37.71; -89.83
Country United States
State Missouri
FoundedNovember 16, 1820
Named afterOliver Hazard Perry
SeatPerryville
Largest cityPerryville
Area
  Total
484 sq mi (1,250 km2)
  Land474 sq mi (1,230 km2)
  Water9.8 sq mi (25 km2)  2.0%
Population
 (2020)
  Total
18,956
  Density39/sq mi (15/km2)
Time zoneUTC−6 (Central)
  Summer (DST)UTC−5 (CDT)
Congressional district8th
Websiteperrycountymo.us

Perry County is a county located in the southeastern portion of the U.S. state of Missouri. As of the 2020 census, the population was 18,956. Its county seat is Perryville. The county was officially organized on November 16, 1820 (effective January 1, 1821) from Ste. Genevieve County and was named after Oliver Hazard Perry, a naval hero of the War of 1812.