In 2019, Knox County, IL had a population of 50.5k people with a median age of 42.1 and a median household income of $44,129. Between 2018 and 2019 the population of Knox County, IL declined from 50,999 to 50,508, a −0.963% decrease and its median household income grew from $43,709 to $44,129, a 0.961% increase.
The 5 largest ethnic groups in Knox County, IL are White (Non-Hispanic) (82.9%), Black or African American (Non-Hispanic) (8.48%), White (Hispanic) (2.7%), Other (Hispanic) (2.01%), and Two+ (Non-Hispanic) (1.48%). 0% of the households in Knox County, IL speak a non-English language at home as their primary language, and 97.3% of the residents in Knox County, IL are U.S. citizens.
In 2019, the median property value in Knox County, IL was $83,000, and the homeownership rate was 66.7%. Most people in Knox County, IL drove alone to work, and the average commute time was 17.8 minutes. The average car ownership in Knox County, IL was 2 cars per household.