Wapello County, Iowa

Wapello County, Iowa
The courthouse in Ottumwa
Location within the U.S. state of Iowa
Coordinates: 41°01′46″N 92°24′32″W / 41.029444444444°N 92.408888888889°W / 41.029444444444; -92.408888888889
Country United States
State Iowa
Founded1843
Named afterWapello
SeatOttumwa
Largest cityOttumwa
Area
 • Total
436 sq mi (1,130 km2)
 • Land432 sq mi (1,120 km2)
 • Water4.2 sq mi (11 km2)  1.0%
Population
 (2020)
 • Total
35,437
 • Estimate 
(2024)
35,681
 • Density82.0/sq mi (31.7/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional district3rd
Websitewww.wapellocounty.org
  • Iowa county number 90

Wapello County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 35,437. The county seat and the largest city is Ottumwa. The county was formed on February 17, 1843, and named for Wapello, a Meskwaki chief.

Wapello County is included in the Ottumwa, IA Micropolitan statistical area.