File:Lyon_County_IA_Courthouse.jpg · Wikimedia Commons · See Wikimedia Commons
Lyon County
Sign in to saveAlso known as Lyon County, Iowa, Lyon County, IA
county in Iowa, United States of America
Key facts
- Country
- United States
- State
- Iowa
- Founded
- January 15, 1851
- Named after
- Nathaniel Lyon
- Seat
- Rock Rapids
- Largest city
- Rock Rapids
- Total
- 588 sq mi (1,520 km )
- Land
- 588 sq mi (1,520 km )
- Water
- 0.1 sq mi (0.26 km ) 0.02%
- Estimate 2025
- 12,354
- Density
- 20.3/sq mi (7.84/km )
- Time zone
- UTC−6 ( Central )
- Summer dst
- UTC−5 ( CDT )
- Congressional district
- 4th
- Website
- lyoncounty .iowa .gov
via Wikipedia infobox
Wikidata facts
- Official name
- Lyon County
- Population
- 11934
- Area
- 1522
- Official website
- www.lyoncountyiowa.com
- Image
- Lyon County IA Courthouse.jpg
- Households
- 4593
Show 6 more facts
- Commons category
- Lyon County, Iowa
- inception
- 1851-01-15
- water as percent of area
- 0.02
- native label
- Lyon County
- per capita income
- 29410
Sources (10)
via Wikidata · CC0
~8 min read
Article
Lyon County is the most northwestern county of the U.S. state of Iowa. As of the 2020 census, the population was 11,934. The county seat is Rock Rapids.
Lyon County is named in honor of Brigadier General Nathaniel Lyon, who served in the Mexican–American War and the Civil War. 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.