Monmouth
City in Warren County, Illinois

Monmouth is a city in Warren County, Illinois, with 8,902 residents (2020 Census). It sits at 755 ft (230 m) above sea level. The nearest town is Kirkwood, 6.4 miles SW.
- 8,902residents (2020 Census)
- 755 ftelevation · 230 m
- 4.2 sq miland area · 11.0 km²
- 2,096 / sq mipopulation density
- 61462ZIP code
About Monmouth
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.
Local parks and institutions located within Monmouth include Monmouth Park, Harmon Park, North Park, Warfield Park, West Park, South Park, Garwood Park, Buster White Park and the Citizens Lake & Campground. It is the host of the Prime Beef festival, held annually the week after Labor Day. The festival is kicked off with one of the largest parades in Western Illinois. Monmouth is also known regionally as the "Maple City". It is part of the Galesburg Micropolitan Statistical Area.
Text: Wikipedia · CC BY-SA 4.0
Monmouth weather: 7-day forecast
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Live webcams in Monmouth
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Living in Monmouth
- Median household income
- $61,138
- Median home value
- $86,800
- Median rent
- $733/mo
- Median age
- 34.1
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Map of Monmouth
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Open in Google Maps ›Monmouth, IL population
Monmouth had 8,902 residents in the 2020 Census.
| 2020 Census | 8,902 |
|---|---|
| Density | 2,096 per sq mi (809 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Monmouth at a glance
| State | Illinois (IL) |
|---|---|
| County | Warren County |
| Type | City |
| Population | 8,902 (2020) |
| Land area | 4.25 sq mi (11.0 km²) |
| Water area | 0.02 sq mi (0.05 km²) |
| Elevation | 755 ft (230 m) |
| Coordinates | 40.9142° N, 90.6431° W |
| ZIP code | 61462 |
| Census code (GEOID) | 1750010 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Monmouth
- Kirkwood6.4 mi SW
- Cameron6.9 mi E
- Little York8.6 mi NW
- Alexis11.2 mi NE
- Biggsville12.2 mi W
- Roseville12.7 mi S
- Media14.1 mi SW
- Galesburg14.1 mi E
- Abingdon14.8 mi SE
- North Henderson15.0 mi NE
- Seaton15.3 mi NW
- Oquawka16.1 mi W
Straight-line distance between town centers.
Frequently asked questions about Monmouth
What county is Monmouth in?
Monmouth is in Warren County, Illinois.
What is the population of Monmouth, IL?
8,902 people lived in Monmouth at the 2020 Census.
What is the ZIP code of Monmouth, IL?
The ZIP code of Monmouth is 61462.
What is the elevation of Monmouth?
755 feet (230 m) above sea level.
What towns are near Monmouth?
Kirkwood (6.4 mi), Cameron (6.9 mi), Little York (8.6 mi), Alexis (11.2 mi), Biggsville (12.2 mi).
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