In 2017, O'Brien County, IA had a population of 13.9k people with a median age of 43.3 and a median household income of $56,314. Between 2016 and 2017 the population of O'Brien County, IA declined from 14,055 to 13,944, a -0.79% decrease and its median household income grew from $52,474 to $56,314, a 7.32% increase.
The 5 largest ethnic groups in O'Brien County, IA are White (Non-Hispanic) (93.2%), Some Other Race (Hispanic) (2.59%), White (Hispanic) (1.44%), Asian (Non-Hispanic) (0.889%), and Black or African American (Non-Hispanic) (0.731%). N/A% of the people in O'Brien County, IA speak a non-English language, and 98.1% are U.S. citizens.
The median property value in O'Brien County, IA is $108,000, and the homeownership rate is 71%. Most people in O'Brien County, IA commute by Drove Alone, and the average commute time is 15.3 minutes. The average car ownership in O'Brien County, IA is 2 cars per household.