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Advertise here →Alton, IL · Houses & Market Data
Alton, Illinois houses and real estate market data.
Houses in Alton, IL (Madison County) — Census median home value $99,500, county listing prices up about 7.0% over the past year. Market data for Alton houses and the broader area.
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Alton, IL is in Madison County, Illinois — this guide covers houses in Alton and the whole local market: resale homes, condos, land, and new construction. The most recent Census estimate puts the population at 25,430, with a median household income of $53,005. Census data puts Alton houses at a median value of $99,500 (all owner-occupied homes); Madison County's current median listing price runs $214,000, up about 7.0% over the past year.
Info from government sites and builders may have provided source info.
Market overview
Alton housing market
Alton is in Madison County, Illinois. Manifest Census and county price-trend data provide baseline context for houses in Alton and the surrounding county market.
Median home value (Census ACS)
$99,500
Population (Census ACS)
25,430
Median household income
$53,005
County price trend (2025)
6.69% YoY
Population, income, and median home value from the project batch manifest (Census ACS 2023 5-year). County price trend from FHFA county HPI when present in the manifest row.
At a glance
Alton market snapshot
Population
25,430
County
Madison County
Median Household Income
$53,005
Median Home Value (city)
$99,500
Median Listing Price (Madison County)
$214,000
Median Gross Rent
$948/mo
Price Trend (YoY)
+7.0%
Market data compiled from public sources; deemed reliable but not guaranteed; verify independently. See About
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What makes Alton different
Home Value, By Source
The Census Bureau's American Community Survey (2023 5-year estimate) puts Alton's median home value — across all owner-occupied homes, not just recent sales — at $99,500. Separately, Madison County's current median listing price (via Realtor.com data, 2026-06-01) runs $214,000. These cover different geography (city vs. county) and different measures (assessed value vs. active listings), which is why we show both rather than picking one — full source list on our data sources page.
County Price Trend
Madison County's FHFA house price index shows a 6.69% annual change in 2025.
Population & Income
Alton has an estimated population of 25,430 and a median household income of $53,005, per the Census Bureau's American Community Survey (2023 5-year estimate).
Affordability Snapshot
Alton's Census-reported median home value works out to about 1.9x the area's median household income, and median gross rent runs roughly 21% of that same income on an annualized basis. Housing economists commonly flag a price-to-income ratio above 4x as historically elevated -- useful context, not a personal affordability verdict.
Nearby
Places around Alton
County guide: Madison County — cities, market context, and local resources for the county that includes Alton.
USAHouses.com also helps visitors looking in nearby Madison County and other Illinois communities. Some locations may not yet have dedicated pages, but many licensed professionals in this region assist surrounding communities.
Nearby communities include East Alton, Rosewood Heights, Wood River, Godfrey, Bethalto, Moro, Hartford, Roxana, South Roxana, Mitchell, Holiday Shores, Edwardsville, Granite City, Prairietown, Pontoon Beach, Glen Carbon.
East Alton market data
Nearby city · ~2.7 mi
Rosewood Heights market data
Nearby city · ~4.3 mi
Wood River market data
Nearby city · ~4.8 mi
Godfrey market data
Nearby city · ~5.1 mi
Bethalto market data
Nearby city · ~5.7 mi
Moro market data
Nearby city · ~6.9 mi
Hartford market data
Nearby city · ~7.0 mi
Roxana market data
Nearby city · ~8.0 mi
South Roxana market data
Nearby city · ~8.1 mi
Mitchell market data
Nearby city · ~10.4 mi
Holiday Shores market data
Nearby city · ~11.5 mi
Edwardsville market data
Nearby city · ~11.7 mi
Granite City market data
Nearby city · ~12.1 mi
Prairietown market data
Nearby city · ~13.0 mi
Pontoon Beach market data
Nearby city · ~13.4 mi
Glen Carbon market data
Nearby city · ~13.5 mi
More Illinois cities with market guides: Aurora, Joliet, Naperville, Rockford, Elgin, Springfield, Peoria, Waukegan.
Aurora market data
Same-state city guide
Joliet market data
Same-state city guide
Naperville market data
Same-state city guide
Rockford market data
Same-state city guide
Elgin market data
Same-state city guide
Springfield market data
Same-state city guide
Peoria market data
Same-state city guide
Waukegan market data
Same-state city guide
Adjacent-county Census places with USAHouses.com pages: Brighton (~9.5 mi), Elsah (~11.5 mi), Bunker Hill (~14.3 mi), Grafton (~15.6 mi), Shipman (~15.9 mi), Otterville (~16.7 mi), Brooklyn (~17.3 mi), Fidelity (~17.3 mi), Jerseyville (~17.5 mi), Royal Lakes (~17.8 mi), Medora (~18.8 mi), Dorchester (~18.9 mi), Washington Park (~19.3 mi), Wilsonville (~19.6 mi), East St. Louis (~19.9 mi), Caseyville (~20.0 mi).
New construction: New homes near Alton (Chicago) · Illinois new construction.
Census & home facts
Alton data from published sources
Population (ACS 2023)
25,430
Median home value (ACS 2023)
$99,500
Median household income (ACS 2023)
$53,005
Median gross rent (ACS 2023)
$948
County FHFA annual change (2025)
6.69%
County median listing price (FRED/Realtor.com) (2026-06-01)
$214,000
Census place type
city
County
Madison County
Land area (Census Gazetteer 2024)
15.67 sq mi
Census GEOID
1701114
Census ACS, FHFA, and FRED figures are labeled with the year present in existing CSVs. Subject to change / confirm locally.
NewUSAHouses.com communities
Closest verified new-home communities near Alton
Availability and pricing are controlled by the builder and may change; confirm with the builder.
Riverstone ↗
McBride Homes · Florissant, Missouri · ~10.1 mi · from $250,000
River Bluffs Manors ↗
McBride Homes · Florissant, Missouri · ~12.5 mi · from $250,000
River Bluffs Meadows ↗
McBride Homes · Florissant, Missouri · ~12.7 mi · from $240,000
Koch Park Manors ↗
McBride Homes · Florissant, Missouri · ~13.2 mi · from $250,000
Pagedale ↗
McBride Homes · Pagedale, Missouri · ~18.1 mi · from $240,000
Local life
Life in Alton
Schools
Edwardsville CUSD 7 — 15 schools, 7,274 students enrolled, per the U.S. Department of Education's Common Core of Data. Madison addresses may be served by Edwardsville CUSD 7, but attendance zones vary by street — confirm assigned schools with the district before making a move.
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Common questions
Alton FAQ
What are houses worth in Alton, IL?
The Census Bureau's American Community Survey puts the median value of houses in Alton at $99,500. Madison County's current median listing price runs $214,000, up about 7.0% over the past year.
How much do houses cost in Alton, IL?
For owner-occupied houses in Alton, Census ACS data shows a median value of $99,500. Active listing prices in Madison County may differ — see the market snapshot above.
What types of houses are in Alton, IL?
Alton houses include resale single-family homes, condos, mobile homes, and small multi-unit buildings, plus new construction in surrounding Madison County communities where builders are active. The housing-stock section below uses Census ACS structure counts when available for this city.
What is the population of Alton, IL?
The U.S. Census Bureau's American Community Survey (2023 5-year estimate) puts Alton's population at approximately 25,430.
What's the median rent in Alton, IL?
The Census ACS estimates median gross rent in Alton at approximately $948 per month.
What is the median household income in Alton, IL?
Census ACS data puts the median household income in Alton at approximately $53,005.
Is the Alton housing market growing?
Madison County's FHFA house price index shows a 6.69% annual change in 2025.
Is Alton, IL affordable relative to income?
Census ACS data puts Alton's median home value at about 1.9 times the median household income, with median gross rent equal to roughly 21% of that income annually. This is a general benchmark, not a personal pre-qualification -- your own income, debt, and down payment determine what you can actually afford.
What school district serves Alton, IL?
Manifest and public school-directory data suggest Edwardsville CUSD 7 for many Alton addresses, but attendance zones vary by street — verify your assigned schools with the district before making a move.
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