Crime in Monmouth, Illinois
Major crime in Monmouth is 36% below the U.S. rate per resident: 30% lower for persons crimes and 37% lower for property crimes. Expected major crimes are down 7.9% from a year earlier.
Modeled estimates per resident, not counts of incidents. How we calculated this
Index: crimes per resident compared with the U.S., where 100 is the U.S. rate and 200 is twice it.
Check an address in Monmouth
Every crime type in Monmouth is near or below the U.S. rate
Expected crimes per year in Monmouth for each type, and the index against the U.S. rate per resident.
Citywide indexWhere the middle half of residents live
Property crimes
Social disorder
How crime varies across Monmouth
The middle half of Monmouth residents live in neighborhoods with a major-crime index between 26 and 77; the typical (median) resident's is 58.
- 0–5033.4%
- 50–10046.6%
- 100–20020.0%
- 200–4000.0%
- 400+0.0%
Share of residents by the index of their census block group, a neighborhood of roughly 600 to 3,000 people.
Lowest on weeknights
Major-crime index by time of week, against the U.S. rate for the same hours.
Major crime fell 7.9% in a year; across Illinois it fell 9.6%
Change in expected crimes, with Illinois as a whole in gray. The past year uses the reporting agencies' year-to-date FBI data; 2031 is the model's projection.
Monmouth against U.S. places with 5,000 to 10,000 residents
1,061 of the 2,163 other places of this size have a higher major-crime index than Monmouth; the middle of the group is 63. The 9 nearest in population:
Major-crime index per resident, U.S. = 100; residents in gray.
Monmouth has a higher major-crime index than 5 of its 8 nearest neighbors
The 8 nearest cities and towns we cover, by major-crime index. The closest, Abingdon (14 mi), is 27% below Monmouth's rate.
Major-crime index per resident, U.S. = 100; distances between where residents live, in miles.
Questions about crime in Monmouth
What are the most common crimes in Monmouth?
By expected count, the most common persons and property crimes are other larceny (about 32 a year), shoplifting (about 25 a year) and aggravated assault (about 16 a year). Compared with the U.S., rape / sexual assault stands out most: about the U.S. rate per resident.
How we calculated this
Each police agency's crimes, as reported to the FBI, are spread across the census block groups it serves using population, jobs, points of interest and, where available, local incident records. Monmouth's figures add up its 11 block groups. The index compares crimes per resident with the U.S. rate.
- Monmouth has no published incident records in our data, so its estimate relies on agency totals and neighborhood characteristics.
- 0.0% of residents live in block groups whose estimate has high confidence (80% interval within about 5x).
- Rates are per resident, so places where many people work or visit but few live, such as downtowns, airports and stadiums, can read high.
- Disorderly conduct and trespassing are modeled, because the FBI records them only through arrests.
- Residents: 9,154. Model updated Oct 20, 2026. Release 2026-2026-10-20-2
Full method and validation·Data sources
CrimeMetric. "Crime in Monmouth, Illinois." Vorp Labs, model updated Oct 20, 2026. https://crimemetric.com/il/monmouth
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Major-crime index, U.S. = 100
- Abingdon14 mi47
- Galesburg14 mi185
- Knoxville18 mi32
- Aledo20 mi41
- Bushnell26 mi48
- Burlington, IA26 mi86
- West Burlington, IA28 mi398
- Macomb31 mi38