Lyon County Address Data

  • State: Iowa
  • County: Lyon County
  • County Seat: Rock Rapids
  • FIPS: 19119
  • Founded in: 1851
  • Population: 11,811
  • Density: 20 Persons/Square Mile
  • Area: 587 Square Miles
  • Government Type: County
  • Authority: Home Rule
  • Legislative Body: Board of Supervisors
  • Legislative Body Size: 5
  • County Contact: 206 S 2Nd Ave
    County Courthouse
    Rock Rapids, IA 51246-1538
  • County site: http://www.lyoncountyiowa.com
  • Labor Force: 6,949
  • Unemployment Rate: 1.50%
  • Gross Domestic Product (GDP): $1.1 B

Top Cities in Lyon County

Major Cities (population)

Neighbor Counties

  • O'brien County
  • Osceola County
  • Sioux County
  • Nobles County
  • Rock County
  • Lincoln County
  • Minnehaha County
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