Monmouth is a city in and the county seat of Warren County, Illinois, United States. The population was 8,902 at the 2020 census, down from 9,444 in 2010. It is the home of Monmouth College.
Midwest
Monmouth
Warren County, IL
Population
8,764
Walk Score
82 · Very Walkable
Median rent
$653
Median home value
$90,000
Founded
1831
From Wikipedia. Released under CC BY-SA.
On the National Register
Historic districts
- Monmouth Courthouse Commercial Historic District · listed 2006
Notable landmarks
- Brewer, May (Carns) and John E., House · listed 2023
- Carr House · listed 1988
- Colwell, E. B., and Company Department Store · listed 1993
- Martin, Sarah, House · listed 1980
- Patton Block Building · listed 1990
- Pike-Sheldon House · listed 1999
- Quinby, Ivory, House · listed 1980
- Stewart, Minnie, House · listed 1989
- Weir, William S., Jr., House · listed 1992
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.