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Where is Adams County, Illinois?

location of Adams county on a map

Adams County is a county equivalent area found in Illinois, USA. The county government of Adams is found in the county seat of Quincy.

With a total 2,256.76 sq. km of land and water area, Adams County, Illinois is the 1036th largest county equivalent area in the United States. Home to 66,988 people, Adams County has a total 29867 households earning 45073 on average per year.

Adams County, Illinois - Quick Facts

FIPS Code 17001
Area Codes 217
Time Zone CST
Major Cities Quincy (population: 51,882), Liberty (population: 2,285), Camp Point (population: 2,188), Mendon (population: 1,857), Payson (population: 1,658), Fowler (population: 1,475), Clayton (population: 1,362), Ursa (population: 1,199), Golden (population: 875), Plainville (population: 647)
Land Area 25,864 sq miles
Water Area 855 sq miles
Household Income $45,073
Housing Units 29,867
Median Home Value $104,200
High School Grads 90% of population
Holders of Bachelors Degrees 21% of population
Retail Spending $13,888 per capita
Universities and Colleges Quincy University, Vatterott College

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This page was last updated on June 30, 2016.