O'Brien County
Sign in to saveAlso known as O'Brien County, Iowa, O'Brien County, IA
county in Iowa, United States
Key facts
- Country
- United States
- State
- Iowa
- Founded
- January 15, 1851
- Named after
- William Smith O'Brien
- Seat
- Primghar
- Largest city
- Sheldon
- Total
- 573 sq mi (1,480 km )
- Land
- 573 sq mi (1,480 km )
- Water
- 0.2 sq mi (0.52 km ) 0.03%
- Estimate 2025
- 14,220
- Density
- 24.8/sq mi (9.56/km )
- Time zone
- UTC−6 ( Central )
- Summer dst
- UTC−5 ( CDT )
- Congressional district
- 4th
- Website
- obriencounty .iowa .gov
via Wikipedia infobox
~8 min read
Encyclopedic overview
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. The county seat is Primghar.
History
Excerpted from Wikipedia’s “O'Brien County” article, available under the CC BY-SA 4.0 licence.