In 2020, Crystal Lake, IL had a population of 39.7k people with a median age of 39.9 and a median household income of $91,456. Between 2019 and 2020 the population of Crystal Lake, IL declined from 39,974 to 39,685, a −0.723% decrease and its median household income grew from $87,578 to $91,456, a 4.43% increase.
The 5 largest ethnic groups in Crystal Lake, IL are White (Non-Hispanic) (81%), White (Hispanic) (10.4%), Asian (Non-Hispanic) (3.46%), Two+ (Non-Hispanic) (2.11%), and Other (Hispanic) (1.12%).
None of the households in Crystal Lake, 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.
95.6% of the residents in Crystal Lake, IL are U.S. citizens.
In 2020, the median property value in Crystal Lake, IL was $233,400, and the homeownership rate was 75.9%. Most people in Crystal Lake, IL drove alone to work, and the average commute time was 30.2 minutes. The average car ownership in Crystal Lake, IL was 2 cars per household.