In 2019, Lee County, IL had a population of 34.4k people with a median age of 43.2 and a median household income of $58,194. Between 2018 and 2019 the population of Lee County, IL declined from 34,527 to 34,389, a −0.4% decrease and its median household income grew from $57,901 to $58,194, a 0.506% increase.
The 5 largest ethnic groups in Lee County, IL are White (Non-Hispanic) (86.2%), Black or African American (Non-Hispanic) (5.45%), White (Hispanic) (4.34%), Two+ (Non-Hispanic) (1.13%), and Other (Hispanic) (0.948%). 0% of the households in Lee County, IL speak a non-English language at home as their primary language.
98.8% of the residents in Lee County, IL are U.S. citizens.
The largest universities in Lee County, IL are Sauk Valley Community College (691 degrees awarded in 2019).
In 2019, the median property value in Lee County, IL was $119,900, and the homeownership rate was 72.3%. Most people in Lee County, IL drove alone to work, and the average commute time was 21.1 minutes. The average car ownership in Lee County, IL was 2 cars per household.