In 2021, Marion County, IL had a population of 37.8k people with a median age of 42.1 and a median household income of $53,209. Between 2020 and 2021 the population of Marion County, IL grew from 37,524 to 37,781, a 0.685% increase and its median household income grew from $49,925 to $53,209, a 6.58% increase.
The 5 largest ethnic groups in Marion County, IL are White (Non-Hispanic) (90.7%), Black or African American (Non-Hispanic) (3.77%), Two+ (Non-Hispanic) (2.49%), White (Hispanic) (1.24%), and Asian (Non-Hispanic) (0.611%).
None of the households in Marion County, IL 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.
99.6% of the residents in Marion County, IL are U.S. citizens.
In 2021, the median property value in Marion County, IL was $83,700, and the homeownership rate was 74.7%.
Most people in Marion County, IL drove alone to work, and the average commute time was 19.3 minutes. The average car ownership in Marion County, IL was 2 cars per household.
Marion County, IL borders Clay County, IL, Clinton County, IL, Fayette County, IL, Jefferson County, IL, Washington County, IL, and Wayne County, IL.