County
· Iowa
Osceola County
Osceola County is a county located in the U.S. state of Iowa. As of the 2020 census the population was 6,192, and was estimated to be 5,980 in 2025, making it the fifth-least populous county in Iowa. It is named for Seminole war chief Osceola. The county seat and the largest city is Sibley, named for H. H. Sibley of Minnesota.
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Cities and towns 5
Reference data (Census of Governments 2022)
- Census ID (PID6)
- 138187
- FIPS state
- 19
- FIPS county
- 143
- FIPS place
- 99143
- Census record name
- COUNTY OF OSCEOLA
- Mailing address
- 300 7TH ST, SIBLEY 51249