In 2019, Mason County, IL had a population of 13.6k people with a median age of 45.2 and a median household income of $48,417. Between 2018 and 2019 the population of Mason County, IL declined from 13,778 to 13,621, a −1.14% decrease and its median household income grew from $45,596 to $48,417, a 6.19% increase.
The 5 largest ethnic groups in Mason County, IL are White (Non-Hispanic) (96.5%), Two+ (Non-Hispanic) (1.32%), Black or African American (Non-Hispanic) (0.756%), White (Hispanic) (0.558%), and Other (Hispanic) (0.33%). 0% of the households in Mason County, IL speak a non-English language at home as their primary language.
99.9% of the residents in Mason County, IL are U.S. citizens.
In 2019, the median property value in Mason County, IL was $83,000, and the homeownership rate was 77.8%. Most people in Mason County, IL drove alone to work, and the average commute time was 25.2 minutes. The average car ownership in Mason County, IL was 2 cars per household.