In 2022, O'Brien County, IA had a population of 14.1k people with a median age of 40.4 and a median household income of $65,076. Between 2021 and 2022 the population of O'Brien County, IA declined from 14,139 to 14,138, a −0.00707% decrease and its median household income grew from $62,292 to $65,076, a 4.47% increase.
The 5 largest ethnic groups in O'Brien County, IA are White (Non-Hispanic) (90.4%), Two+ (Hispanic) (2.98%), Other (Hispanic) (1.58%), Two+ (Non-Hispanic) (1.56%), and Black or African American (Non-Hispanic) (1.39%).
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.
97.8% of the residents in O'Brien County, IA are U.S. citizens.
In 2022, the median property value in O'Brien County, IA was $141,900, and the homeownership rate was 76%.
Most people in O'Brien County, IA drove alone to work, and the average commute time was 17 minutes. The average car ownership in O'Brien County, IA was 2 cars per household.
O'Brien County, IA borders .