Sarah Martin House · National Register of Historic Places
Monmouth’s story
195 years in pictures
10 places on the National Register of Historic Places.
- 1831Monmouth is settled
MonmouthIL
A town of 8,581, settled in 1831. Nearly 10.9% of it is conserved land.
Photo: Nyttend · Public domain
Population
8,581
−5.7% since 2010
Median home value
$87K
Census ACS
Household income
$61K
median
Median age
34.1
years
Jobs based here
4,406
Balanced
What makes Monmouth stand out
The 3 things Monmouth does most differently from other towns.
Outdoors
#77 most walkable in IL
0.0 miles of trails across 11 parks and preserves
10.9% of the town is conserved land.
100 U.S. towns● Monmouth
Health
57% of U.S. towns are healthier
on CDC estimates
Better than IL on 0 measures, worse on 7.
Sarah Martin HouseHistory
Settled in 1831
10 places on the National Register
Archive photos and papers going back 195 years.
College town
13% of Monmouth is in college
College Scorecard · IPEDS
Monmouth’s report card
Now in Monmouth
Be the first to start the conversation.
Residents weigh in
Monmouth is #689 of 691 in IL for “Fastest-rising home prices”. Fair?
Your answer becomes a post in Monmouth’s Town Square.
Start a conversation
Weather
Forecast →57°
Cloudy
H 64° · L 44°
Local news
All →- M'mouth-R'ville vs Macomb - Girls Varsity Volleyball 10/01/2026 | Watch Live & On DemandNFHS Network · Oct 1
- Wartburg College 36-21 Monmouth (IL) (6 Sep, 2026) Game RecapESPN · Oct 1
- High school football: Great Lakes region leading tacklersmaxpreps.com · Oct 1
Upcoming events
Nothing on the calendar.
The data
Ordered by what stands out in Monmouth. Another town gets a different order.
Work & commute
About one in two working residents works right in Monmouth
44% of Monmouth’s working residents work right in town. The top destinations are Galesburg (7%), Peoria (5%) and Chicago (2%). Half commute less than 13 miles.
44%work in town
Where working residents work
In Monmouth44%
Galesburg7%
Peoria5%
Chicago2%
Aledo2%
13 mi
median commute distance
4,406
jobs based in Monmouth
Balanced
jobs vs. working residents
Census LEHD 2023 · ACSCommute map →
Outdoors
10.9% of Monmouth is conserved land
0.0 miles of trails across 11 parks and preserves.
10.9%conserved
10.9%
conserved · 297 of 2,719 acres
0.0 mi
of trails · 0 per sq mi
#115
most conserved land in IL
#77
most walkable in IL
| Biggest places to walk | Trails | Acres |
|---|---|---|
| 1. Monmouth Park | — | 68 |
| 2. Citizen's Lake | — | 61 |
| 3. Pattee Park | — | 5 |
Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-USParks & trails →
Health
Healthier than 43% of U.S. towns
Monmouth beats the Illinois average on 0 of 32 CDC measures and trails it on 7.
C+Health Grade
32 measures vs. Illinois
0 better25 too close to call7 worse
| What stands out | Monmouth | IL |
|---|---|---|
| More older adults who have lost all their teeth | 13.5% | 10.3% |
| More adults with COPD | 7.8% | 6.3% |
| More adults in frequent mental distress | 18.4% | 15.6% |
Osf Holy Family Medical Center
0.9 mi away · emergency room
3 of 3
care shortages: primary care, dental, mental health
33rd
percentile among IL towns
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSAFull health report →
Climate
Four seasons, pleasant summers
Monmouth has cold winters and warm summers. A typical July afternoon reaches 85°, a January night drops to 15°, and about 26 inches of snow falls in a normal winter.
26″snow a winter
Typical low → high °F
Winter18–34°
Spring40–61°
Summer62–83°
Fall42–63°
Oct 15
typical first frost
Apr 22
typical last frost
+0.7°
vs. the 20th-century average
NOAA U.S. Climate Normals, 1991–2020Full climate →
Safety
Less crime per resident than 45% of U.S. towns
Monmouth reports more crime per resident than most U.S. towns we grade: about 55% report less.
B−Safety Grade
Violent crime per 1,000 residents
Monmouth2
Illinois2.6
U.S.3.3
Property crime per 1,000 residents
Monmouth9.3
Illinois15.6
U.S.15.5
45th
percentile among U.S. towns we grade
31st
percentile among IL towns
17
violent crimes reported in 2025
80
property crimes reported in 2025
FBI crime data, 2025 · crimes reported to policeFull safety report →
Natural hazards
Moderate risk, with inland flooding at the top
Expected storm and flood damage is higher than in 50% of U.S. communities.
50risk score of 100
FEMA risk score
Inland floodingCold wavesHeat waves
2
paid flood claims since 1986
4
federal disasters paid out here
FEMA National Risk Index · OpenFEMANatural hazards →
Landmarks
10 places in Monmouth on the National Register of Historic Places.
About Monmouth
City in Illinois, United States
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.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
- Established
- 1831
- Population
- 8,902
- Area
- 4.2 sq mi
- Elevation
- 755 ft
- ZIP code
- 61462
- Area code
- 309
More about Monmouth
Still missing for Monmouth:archive photosupcoming events