In 2018, Marion County, IA had a population of 33.2k people with a median age of 39.2 and a median household income of $58,492. Between 2017 and 2018 the population of Marion County, IA grew from 33,127 to 33,207, a 0.241% increase and its median household income grew from $57,917 to $58,492, a 0.993% increase.
The 5 largest ethnic groups in Marion County, IA are White (Non-Hispanic) (94.7%), Two+ (Non-Hispanic) (1.68%), Asian (Non-Hispanic) (0.943%), Other (Hispanic) (0.852%), and White (Hispanic) (0.816%). 0% of the households in Marion County, IA speak a non-English language at home as their primary language, and 99.6% of the residents in Marion County, IA are U.S. citizens.
The largest universities in Marion County, IA are Central College (290 degrees awarded in 2019).
In 2018, the median property value in Marion County, IA was $152,400, and the homeownership rate was 70.5%. Most people in Marion County, IA drove alone to work, and the average commute time was 18.2 minutes. The average car ownership in Marion County, IA was 2 cars per household.