Adams County, IL has a population of 66,949 people with a median age of 41.1 and a median household income of $48,065. Between 2015 and 2016 the population of Adams County, IL declined from 67,081 to 66,949, a 0.2% decrease and its median household income grew from $45,965 to $48,065, a 4.57% increase.
The population of Adams County, IL is 92.3% White, 3.78% Black, and 1.43% Hispanic. 2.2% of the people in Adams County, IL speak a non-English language, and 99% are U.S. citizens.
The largest universities in Adams County, IL are John Wood Community College, with 537 graduates, Quincy University, with 372 graduates, and Vatterott College-Quincy, with 93 graduates.
The median property value in Adams County, IL is $116,400, and the homeownership rate is 70%. Most people in Adams County, IL commute by Drove Alone, and the average commute time is 15.7 minutes. The average car ownership in Adams County, IL is 2 cars per household.
Adams County, IL is the 23rd most populated county in Illinois and borders Brown County, IL; Hancock County, IL; Pike County, IL; Schuyler County, IL; Lewis County, MO; and Marion County, MO& 1 more.