Osage County, Kansas
Osage County | |
|---|---|
Osage County Courthouse in Lyndon (2009) | |
| Nickname: Land of Lakes | |
Location within the U.S. state of Kansas | |
Kansas's location within the U.S. | |
| Coordinates: 38°39′N 95°44′W / 38.65°N 95.73°W | |
| Country | United States |
| State | Kansas |
| Founded | 1859 |
| Named after | Osage Nation |
| Seat | Lyndon |
| Largest city | Osage City |
| Area | |
• Total | 720 sq mi (1,900 km2) |
| • Land | 706 sq mi (1,830 km2) |
| • Water | 14 sq mi (40 km2) 2.0% |
| Population (2020) | |
• Total | 15,766 |
• Estimate (2023) | 15,824 |
| • Density | 22.3/sq mi (8.6/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 2nd |
| Website | OsageCo.org |
Osage County is a county located in the U.S. state of Kansas. Its county seat is Lyndon, and its most populous city is Osage City. As of the 2020 census, the county population was 15,766. The county was originally organized in 1855 as Weller County, then renamed in 1859 after the Osage tribe.