Alton is a city on the Mississippi River in Madison County, Illinois, United States, about 18 miles (29 km) north of St. Louis, Missouri. Its population was 25,676 at the 2020 census. It is a part of the River Bend area in the Metro-East region of the Greater St. Louis metropolitan area.
Midwest
Alton
Madison County, IL
Population
25,642
Walk Score
77 · Very Walkable
Median rent
$908
Median home value
$93,500
Founded
1837
From Wikipedia. Released under CC BY-SA.
On the National Register
Historic districts
- Christian Hill Historic District · listed 1978
- Middletown Historic District · listed 1978
- Middletown Historic District (Boundary Increase II) · listed 2022
- Middletown Historic District (Boundary Increase) · listed 1982
- Upper Alton Historic District · listed 1978
- Yakel House and Union Brewery · listed 1982
Notable landmarks
- Alton Chapter House · listed 1980
- Alton Gas & Electric Power House · listed 2019
- Alton Military Prison Site · listed 1974
- Alton National Cemetery · listed 2011
- Guertler House · listed 1974
- Haskell Playhouse · listed 1974
- Hotel Stratford · listed 2000
- Mount Lookout · listed 1980
- Post House · listed 1980
- Salem Baptist Church · listed 2013
- Trumbull, Lyman, House · listed 1975
Add to this page
Know this town? Share a tip, a memory, or a photo for other visitors.
New towns in your inbox.
An occasional dispatch when we add towns or publish a trip idea. No spam, ever.