In 2018, Linn County, IA had a population of 222k people with a median age of 37.5 and a median household income of $64,862. Between 2017 and 2018 the population of Linn County, IA grew from 220,008 to 222,121, a 0.96% increase and its median household income grew from $62,702 to $64,862, a 3.44% increase.
The 5 largest ethnic groups in Linn County, IA are White (Non-Hispanic) (86.4%), Black or African American (Non-Hispanic) (5.19%), Two+ (Non-Hispanic) (2.39%), Asian (Non-Hispanic) (2.33%), and White (Hispanic) (2.02%). 0% of the people in Linn County, IA speak a non-English language, and 97.5% are U.S. citizens.
In 2018, the median property value in Linn County, IA was $153,700, and the homeownership rate was 74.4%. Most people in Linn County, IA drove alone to work, and the average commute time was 18 minutes. The average car ownership in Linn County, IA was 2 cars per household.