Market Overview
Home Prices in Alton, IL
The median home value in Alton, IL is $107,516 as of mid-2026, according to Zillow's Home Value Index (ZHVI).That's up 6.2% compared to a year ago and down 3.8% from two years prior.
Compared to the U.S. national median of $410,000, homes in Alton are priced74% below average. Alton is part of the St. Louis, MO-IL metro area.
Over the past five years, Alton home values have risen by approximately13.9%, reflecting steady appreciation in this market.
Price History
Alton Home Price Trend
2020
$81,115
$81K
—
2021
$94,391
$94K
+16.4%
2022
$96,259
$96K
+2.0%
2023
$101,099
$101K
+5.0%
2024
$105,175
$105K
+4.0%
2025
$101,194
$101K
-3.8%
2026
$107,516
$108K
+6.2%
City Comparison
Alton vs. National Median
🏠 Alton
$107,516
National Median
$410,000
At $107,516, homes in Alton cost 74% below the national median of $410,000. This makes Alton a relatively affordable market for buyers seeking value.
Affordability
What Does It Cost to Buy in Alton?
20% Down Payment
$21,503
on $107,516
Monthly P&I
$561/mo
30-yr @ 6.8%
Total Monthly Est.
~$712/mo
incl. taxes & insurance
Income Needed
$28,480
gross annual (30% rule)
10% Down Option
$10,752
+ PMI applies
Loan Amount (20% dn)
$86,013
at current rates
Estimates assume a 30-year fixed mortgage at 6.8%. Monthly total includes estimated property taxes and homeowner's insurance. Actual costs vary.
FAQ
Frequently Asked Questions
What is the average home price in Alton, IL?
The median home value in Alton is $107,516 as of mid-2026, according to Zillow's Home Value Index (ZHVI). That's up 6.2% year-over-year.
How much have home prices changed in Alton?
Over the past year, home values in Alton have increased by 6.2%. Over five years, prices have risen approximately 13.9%.
How much do I need to earn to buy a home in Alton?
To comfortably afford the median home price of $107,516 with a 20% down payment ($21,503) at today's rates (6.8%), you'd need a gross annual income of approximately $28,480. This assumes keeping total housing costs at or below 30% of gross income.
How does Alton compare to the national average home price?
The national median home value is approximately $410,000. At $107,516, homes in Alton are 74% below the national average.
What metro area is Alton part of?
Alton is part of the St. Louis, MO-IL metropolitan area. Home prices and market conditions can vary across the broader metro region.