In 2020, Lake County, IL had a population of 700k people with a median age of 38.5 and a median household income of $92,654. Between 2019 and 2020 the population of Lake County, IL declined from 701,473 to 699,682, a −0.255% decrease and its median household income grew from $89,427 to $92,654, a 3.61% increase.
The 5 largest ethnic groups in Lake County, IL are White (Non-Hispanic) (60.8%), White (Hispanic) (11.9%), Asian (Non-Hispanic) (7.97%), Other (Hispanic) (7.01%), and Black or African American (Non-Hispanic) (6.51%).
None of the households in Lake County, IL reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
91.1% of the residents in Lake County, IL are U.S. citizens.
The largest universities in Lake County, IL are College of Lake County (4,492 degrees awarded in 2020), Rosalind Franklin University of Medicine and Science (646 degrees), and Lake Forest College (464 degrees).
In 2020, the median property value in Lake County, IL was $271,700, and the homeownership rate was 73.5%. Most people in Lake County, IL drove alone to work, and the average commute time was 30.4 minutes. The average car ownership in Lake County, IL was 2 cars per household.