In 2021, O'Brien County, IA had a population of 14.1k people with a median age of 40.7 and a median household income of $62,292. Between 2020 and 2021 the population of O'Brien County, IA grew from 13,796 to 14,139, a 2.49% increase and its median household income grew from $57,200 to $62,292, a 8.9% increase.
The 5 largest ethnic groups in O'Brien County, IA are White (Non-Hispanic) (91.2%), Other (Hispanic) (2.32%), White (Hispanic) (1.68%), Black or African American (Non-Hispanic) (1.46%), and Two+ (Hispanic) (1.08%).
None of the households in O'Brien County, IA reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
98.6% of the residents in O'Brien County, IA are U.S. citizens.
In 2021, the median property value in O'Brien County, IA was $122,900, and the homeownership rate was 75.2%.
Most people in O'Brien County, IA drove alone to work, and the average commute time was 17.5 minutes. The average car ownership in O'Brien County, IA was 2 cars per household.
O'Brien County, IA borders Buena Vista County, IA, Cherokee County, IA, Clay County, IA, Dickinson County, IA, Lyon County, IA, Osceola County, IA, Plymouth County, IA, and Sioux County, IA.