In 2018, Hamilton County, IL had a population of 8.22k people with a median age of 44.1 and a median household income of $56,862. Between 2017 and 2018 the population of Hamilton County, IL declined from 8,259 to 8,221, a -0.46% decrease and its median household income grew from $47,293 to $56,862, a 20.2% increase.
The 5 largest ethnic groups in Hamilton County, IL are White (Non-Hispanic) (96.3%), White (Hispanic) (1.5%), Other (Hispanic) (0.912%), Asian (Non-Hispanic) (0.596%), and Black or African American (Non-Hispanic) (0.377%). 0% of the households in Hamilton County, IL speak a non-English language at home as their primary language, and 99.6% of the residents in Hamilton County, IL are U.S. citizens.
In 2018, the median property value in Hamilton County, IL was $98,100, and the homeownership rate was 80.6%. Most people in Hamilton County, IL drove alone to work, and the average commute time was 26 minutes. The average car ownership in Hamilton County, IL was 2 cars per household.