Lyon County | |
|---|---|
 | |
 Location within the U.S. state of Iowa | |
 Iowa's location within the U.S. | |
| Coordinates: 43°23′00″N 96°13′00″W / 43.383333333333°N 96.216666666667°W | |
| Country |  United States |
| State |  Iowa |
| Founded | January 15, 1851 |
| Named for | Nathaniel Lyon |
| Seat | Rock Rapids |
| Largest city | Rock Rapids |
| Area | |
• Total | 588 sq mi (1,520 km2) |
| • Land | 588 sq mi (1,520 km2) |
| • Water | 0.1 sq mi (0.3 km2) 0.02% |
| Population (2020) | |
• Total | 11,934 |
| • Density | 20/sq mi (7.8/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 4th |
| Website | lyoncounty |
Lyon County is the most northwesterly county of the U.S. state of Iowa. As of the 2020 census, the population was 11,934.[1] The county seat is Rock Rapids.[2]
Lyon County is named in honor of Brigadier General Nathaniel Lyon, who served in the Mexican–American War and the Civil War.[3] He was killed at the Battle of Wilson's Creek, Missouri, on August 10, 1861, after which the county was named for him. The county's name was originally Buncombe County, but was changed by the state legislature on September 11, 1862.
- ^ "2020 Census State Redistricting Data". census.gov. United states Census Bureau. Retrieved August 12, 2021.
- ^ "Find a County". National Association of Counties. Retrieved June 7, 2011.
- ^ Chicago and North Western Railway Company (1908). A History of the Origin of the Place Names Connected with the Chicago & North Western and Chicago, St. Paul, Minneapolis & Omaha Railways. p. 162.