Osceola County, Iowa

Osceola County
Osceola County Courthouse, July 2014
Location within the U.S. state of Iowa
Iowa's location within the U.S.
Coordinates: 43°22′40″N 95°37′40″W / 43.377777777778°N 95.627777777778°W / 43.377777777778; -95.627777777778
Country United States
State Iowa
Founded1871
Named afterOsceola
SeatSibley
Largest citySibley
Area
  Total
399 sq mi (1,030 km2)
  Land399 sq mi (1,030 km2)
  Water0.7 sq mi (2 km2)  0.2%
Population
 (2020)
  Total
6,192
  Density16/sq mi (6.0/km2)
Time zoneUTC−6 (Central)
  Summer (DST)UTC−5 (CDT)
Congressional district4th
Websiteosceolacountyia.gov

Osceola County (/ˌɒsiˈlə/ OSS-ee-OH-lə) is a county located in the U.S. state of Iowa. As of the 2020 census the population was 6,192, making it the state's fifth-least populous county. It is named for Seminole war chief Osceola. The county seat is Sibley, named for H. H. Sibley of Minnesota.