Home values, rents and more in Adams County, IL
September 2026 figures from Zillow and the U.S. Census Bureau · updated 2026-11-07
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How Adams County, IL compares
The typical home in Adams County, IL is worth about $186,000, according to the Zillow Home Value Index for September 2026. Home values in Adams County, IL are about the same as the typical value in the Quincy metro area ($189,000) and 49% below the U.S. typical value ($366,000).
Over the past year, home values in Adams County, IL rose 6.6%, compared with +6.9% in the Quincy metro area and +1.2% nationally.
Typical rent is $1,059 a month (Zillow Observed Rent Index), about the same as the Quincy metro area ($1,059) and 45% below the U.S. ($1,932). Rents rose 8.4% over the past year.
The median household income is $66,220, against $65,360 in the Quincy metro area and $80,734 in the U.S. (Census Bureau, American Community Survey 2020–24).
About 64,267 people live in Adams County, IL (Census Bureau estimate for July 2025).
Adams County, IL has the 31st-highest typical home value of the 102 counties in Illinois with Zillow figures.
Part of: Quincy metro area · Illinois
More for Adams County, IL in ProMap Plus
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- 5- and 10-year price changes
- Days on market and months of supply
- Price cuts and sale-to-list ratio
- Price-to-income and monthly cost to buy
- School test scores
- Flood, wildfire and natural hazard risk
- Property-tax rate
- Unemployment and job growth
- Building permits
- Mortgage delinquency
- 2024 presidential vote
- Age, education and household make-up
- Amenities and transit nearby
Nearby counties
Cities in Adams County, IL
ZIP codes in Adams County, IL
Sources
Home values: Zillow Home Value Index (ZHVI), all homes, middle tier, smoothed and seasonally adjusted, September 2026. Rents: Zillow Observed Rent Index (ZORI), seasonally adjusted. Population: Census population estimates (July 2025) for states, metros and counties; ACS 2020–24 for cities and ZIP codes. Income: U.S. Census Bureau, ACS 2020–24 5-year estimates. Boundaries: U.S. Census Bureau cartographic boundary files. Compiled by Home Economics.
"Typical" is Zillow's middle-tier value (homes between the 35th and 65th percentiles), not a median sale price. Changes are over the 12 months to September 2026.