O'Brien County Address Data

  • State: Iowa
  • County: O'Brien County
  • County Seat: Primghar
  • FIPS: 19141
  • Founded in: 1851
  • Population: 13,840
  • Density: 24 Persons/Square Mile
  • Area: 573 Square Miles
  • Government Type: County
  • Authority: Home Rule
  • Legislative Body: Board of Supervisors
  • Legislative Body Size: 5
  • County Contact: 155 S Hayes Ave
    County Courthouse
    Primghar, IA 51245-7724
  • County site: https://www.obriencounty.com/
  • Labor Force: 8,111
  • Unemployment Rate: 2.00%
  • Gross Domestic Product (GDP): $1.1 B

Top Cities in O'Brien County

Major Cities (population)

Neighbor Counties

  • Buena Vista County
  • Cherokee County
  • Clay County
  • Dickinson County
  • Lyon County
  • Osceola County
  • Plymouth County
  • Sioux County
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