Careers, Jobs and Education Resources for: Lyon County, Iowa
Lyon County is the most northwesterly county of the U.S. state of Iowa. As of 2000, the population is 11,763. Its 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.