In 2020, Winnebago County, IL had a population of 284k people with a median age of 39.8 and a median household income of $55,310. Between 2019 and 2020 the population of Winnebago County, IL declined from 284,819 to 283,635, a −0.416% decrease and its median household income grew from $54,489 to $55,310, a 1.51% increase.
The 5 largest ethnic groups in Winnebago County, IL are White (Non-Hispanic) (68.1%), Black or African American (Non-Hispanic) (12.8%), White (Hispanic) (8.68%), Two+ (Non-Hispanic) (3.09%), and Asian (Non-Hispanic) (2.7%).
None of the households in Winnebago 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.
95.3% of the residents in Winnebago County, IL are U.S. citizens.
In 2020, the median property value in Winnebago County, IL was $121,400, and the homeownership rate was 65.5%. Most people in Winnebago County, IL drove alone to work, and the average commute time was 23 minutes. The average car ownership in Winnebago County, IL was 2 cars per household.