Alton
A city in Madison County, Illinois — population 26,049 as of 2020.
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Today
86°F
Sunny7% precip
Tonight
64°F
Mostly Clear1% precip
Sunday
84°F
Sunny
Sunday Night
62°F
Partly Cloudy3% precip
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Alton by the numbers
Population
26,049Population figure, 2020
Households & income
- Area
- 15.67 sq mi (40.59 km²), 1.28 sq mi water
- Median age
- 38
- Households
- 10,714
- Persons per household
- 2.3
- Median household income
- $54,568
- Median house value
- $103,700
Municipal office
- Office
- CITY COMPTROLLER
- Address
- 101 E 3RD ST, ALTON, IL 62002