Illinois · Population 25,430 · Updated March 2026
How far your income goes in Alton
State-level tax rates that affect your costs
Alton is significantly cheaper than the national average, making it an attractive option for budget-conscious individuals and families. With a cost index of 54 (where 100 equals the national median), Alton residents can expect to pay median rent of $948/month while earning a median household income of $53,005/year.
The median home value in Alton, IL is $99,500, with typical monthly owner costs around $904 including mortgage, insurance, and taxes. The median rent-to-income ratio of 21.5% means housing is relatively affordable here — well below the 30% threshold that HUD considers cost-burdened.
Illinois has a moderate income tax rate of 4.95%. Combined with a 6.25% sales tax rate and 2.07% effective property tax rate, the overall tax environment is a factor in the total cost of living in Alton.
Common questions about living costs in Alton