Home values, rents and more in Johnston City, IL
September 2026 figures from Zillow and the U.S. Census Bureau · updated 2026-11-07
Open Johnston City in ProMap- Under $110k
- $110k–$120k
- $120k–$150k
- $150k+
- No data
How Johnston City compares
The typical home in Johnston City, IL is worth about $110,000, according to the Zillow Home Value Index for September 2026. Home values in Johnston City are 30% below the typical value in the Marion metro area ($158,000) and 70% below the U.S. typical value ($366,000).
Over the past year, home values in Johnston City fell 0.4%, compared with +0.1% in the Marion metro area and +1.2% nationally.
The median household income is $42,465, against $65,604 in the Marion metro area and $80,734 in the U.S. (Census Bureau, American Community Survey 2020–24).
About 3,327 people live in Johnston City (American Community Survey 2020–24).
Johnston City has the lowest typical home value of the 8 cities in the Marion metro area and the 106th-lowest of 1,005 in Illinois with Zillow figures.
Part of: Williamson County, IL · Marion metro area · Illinois
More for Johnston City 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
- Crime rates
- Homeowners insurance premiums
- Commute time to downtown
- Flood, wildfire and natural hazard risk
- Property-tax rate
- 2024 presidential vote
- Age, education and household make-up
- Amenities and transit nearby
Nearby cities
ZIP codes in Johnston City, 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.