In 2019, Greene County, IL had a population of 13.1k people with a median age of 42.5 and a median household income of $49,885. Between 2018 and 2019 the population of Greene County, IL declined from 13,218 to 13,132, a −0.651% decrease and its median household income grew from $46,052 to $49,885, a 8.32% increase.
The 5 largest ethnic groups in Greene County, IL are White (Non-Hispanic) (96.2%), Black or African American (Non-Hispanic) (1.39%), Two+ (Non-Hispanic) (0.853%), White (Hispanic) (0.67%), and Other (Hispanic) (0.411%). 0% of the households in Greene County, IL speak a non-English language at home as their primary language.
99.7% of the residents in Greene County, IL are U.S. citizens.
In 2019, the median property value in Greene County, IL was $81,000, and the homeownership rate was 77.6%. Most people in Greene County, IL drove alone to work, and the average commute time was 27.6 minutes. The average car ownership in Greene County, IL was 2 cars per household.