In 2021, Greene County, IL had a population of 12.2k people with a median age of 42 and a median household income of $54,427. Between 2020 and 2021 the population of Greene County, IL declined from 12,988 to 12,187, a −6.17% decrease and its median household income grew from $51,746 to $54,427, a 5.18% increase.
The 5 largest ethnic groups in Greene County, IL are White (Non-Hispanic) (95.9%), Black or African American (Non-Hispanic) (1.21%), Two+ (Non-Hispanic) (1.19%), Two+ (Hispanic) (0.648%), and Other (Hispanic) (0.32%).
None of the households in Greene 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.
99.8% of the residents in Greene County, IL are U.S. citizens.
In 2021, the median property value in Greene County, IL was $84,200, and the homeownership rate was 78.5%.
Most people in Greene County, IL drove alone to work, and the average commute time was 30.7 minutes. The average car ownership in Greene County, IL was 2 cars per household.
Greene County, IL borders Calhoun County, IL, Jersey County, IL, Macoupin County, IL, Morgan County, IL, Pike County, IL, and Scott County, IL.