In 2019, McDonough County, IL had a population of 30.5k people with a median age of 33 and a median household income of $44,471. Between 2018 and 2019 the population of McDonough County, IL declined from 30,875 to 30,479, a −1.28% decrease and its median household income grew from $43,724 to $44,471, a 1.71% increase.
The 5 largest ethnic groups in McDonough County, IL are White (Non-Hispanic) (87.9%), Black or African American (Non-Hispanic) (4.67%), Two+ (Non-Hispanic) (2.45%), Asian (Non-Hispanic) (2.14%), and White (Hispanic) (1.94%). 0% of the households in McDonough County, IL speak a non-English language at home as their primary language.
97.8% of the residents in McDonough County, IL are U.S. citizens.
The largest universities in McDonough County, IL are Western Illinois University (2,324 degrees awarded in 2020).
In 2019, the median property value in McDonough County, IL was $91,800, and the homeownership rate was 66.3%. Most people in McDonough County, IL drove alone to work, and the average commute time was 16.9 minutes. The average car ownership in McDonough County, IL was 2 cars per household.
McDonough County, IL borders Fulton County, IL, Hancock County, IL, Henderson County, IL, Schuyler County, IL, and Warren County, IL.