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.
97.3% of the residents in Knox County, IL are U.S. citizens.
The largest universities in Knox County, IL are Carl Sandburg College (541 degrees awarded in 2020) and Knox College (339 degrees).
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.
Knox County, IL borders Fulton County, IL, Henry County, IL, Mercer County, IL, Peoria County, IL, Stark County, IL, and Warren County, IL.