Lee County, Iowa

Lee County
Courthouse located in Fort Madison
Location within the U.S. state of Iowa
Iowa's location within the U.S.
Coordinates: 40°38′34″N 91°28′28″W / 40.642777777778°N 91.474444444444°W / 40.642777777778; -91.474444444444
Country United States
State Iowa
Founded1836
SeatFort Madison and Keokuk
Largest cityFort Madison
Area
  Total
539 sq mi (1,400 km2)
  Land518 sq mi (1,340 km2)
  Water21 sq mi (50 km2)  4.0%
Population
 (2020)
  Total
33,555
  Estimate 
(2023)
32,565
  Density62/sq mi (24/km2)
Time zoneUTC−6 (Central)
  Summer (DST)UTC−5 (CDT)
Congressional district1st
Websitewww.leecounty.org

Lee County is the southernmost county in the U.S. state of Iowa. As of the 2020 census, the population was 33,555. The county seats are Fort Madison and Keokuk: It is the only county in Iowa with more than one county seat. Lee County is part of the Fort Madison–Keokuk, IA–ILMO Micropolitan Statistical Area. It was established in 1836.