In 2019, McHenry County, IL had a population of 308k people with a median age of 40.2 and a median household income of $88,879. Between 2018 and 2019 the population of McHenry County, IL declined from 308,570 to 307,774, a −0.258% decrease and its median household income grew from $85,275 to $88,879, a 4.23% increase.
The 5 largest ethnic groups in McHenry County, IL are White (Non-Hispanic) (80.5%), White (Hispanic) (11.5%), Asian (Non-Hispanic) (2.85%), Two+ (Non-Hispanic) (1.59%), and Black or African American (Non-Hispanic) (1.4%). 0% of the households in McHenry County, IL speak a non-English language at home as their primary language, and 96.1% of the residents in McHenry County, IL are U.S. citizens.
In 2019, the median property value in McHenry County, IL was $236,100, and the homeownership rate was 80%. Most people in McHenry County, IL drove alone to work, and the average commute time was 30.9 minutes. The average car ownership in McHenry County, IL was 2 cars per household.