O'Brien County, Iowa

O'Brien County
County
O'Brien County Courthouse
O'Brien County Courthouse
Map of Iowa highlighting O'Brien County
Location within the U.S. state of Iowa
Map of the United States highlighting Iowa
Iowa's location within the U.S.
Coordinates: 43°04′53″N 95°37′34″W / 43.081388888889°N 95.626111111111°W / 43.081388888889; -95.626111111111
Country United States
State Iowa
FoundedJanuary 15, 1851[1]
Named forWilliam Smith O'Brien
SeatPrimghar
Largest citySheldon
Area
 • Total573 sq mi (1,480 km2)
 • Land573 sq mi (1,480 km2)
 • Water0.2 sq mi (0.5 km2)  0.03%
Population
 (2020)
 • Total14,182
 • Density25/sq mi (9.6/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional district4th
Websiteobriencounty.iowa.gov

O'Brien County is a county in the U.S. state of Iowa. As of the 2020 United States Census, the population was 14,182.[2] The county seat is Primghar.[3]

  1. ^ Cite error: The named reference DATE was invoked but never defined (see the help page).
  2. ^ "2020 Census State Redistricting Data". census.gov. United states Census Bureau. Retrieved August 12, 2021.
  3. ^ "Find a County". National Association of Counties. Retrieved June 7, 2011.