In 2017, Marion County, IA had a population of 33.1k people with a median age of 39.5 and a median household income of $57,917. Between 2016 and 2017 the population of Marion County, IA declined from 33,197 to 33,127, a -0.211% decrease and its median household income grew from $57,412 to $57,917, a 0.88% increase.
The 5 largest ethnic groups in Marion County, IA are White (Non-Hispanic) (94.8%), Two or More Races (Non-Hispanic) (1.33%), Asian (Non-Hispanic) (1.14%), White (Hispanic) (0.942%), and Some Other Race (Hispanic) (0.676%). N/A% of the people in Marion County, IA speak a non-English language, and 99.4% are U.S. citizens.
The largest universities in Marion County, IA are Central College (258 degrees awarded in 2017).
The median property value in Marion County, IA is $146,900, and the homeownership rate is 71.1%. Most people in Marion County, IA commute by Drove Alone, and the average commute time is 18 minutes. The average car ownership in Marion County, IA is 2 cars per household.