Crime in Marengo, Illinois
Major crime in Marengo is 58% below the U.S. rate per resident: 47% lower for persons crimes and 60% lower for property crimes. Expected major crimes are down 7.8% 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.
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Rape / sexual assault stands out most, at 1.7 times the U.S. rate
Expected crimes per year in Marengo 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 Marengo
The middle half of Marengo residents live in neighborhoods with a major-crime index between 28 and 43; the typical (median) resident's is 28. The citywide figure (42) is higher than that because crime concentrates in a smaller set of areas.
- 0–5094.0%
- 50–1000.0%
- 100–2006.0%
- 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.
Highest on weekday daytimes
Major-crime index by time of week, against the U.S. rate for the same hours.
Major crime fell 7.8% 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.
Marengo against U.S. places with 5,000 to 10,000 residents
1,568 of the 2,163 other places of this size have a higher major-crime index than Marengo; the middle of the group is 63. The 9 nearest in population:
Major-crime index per resident, U.S. = 100; residents in gray.
Marengo has a higher major-crime index than 7 of its 8 nearest neighbors
The 8 nearest cities and towns we cover, by major-crime index. The closest, Woodstock (10 mi), is 9% below Marengo's rate.
Major-crime index per resident, U.S. = 100; distances between where residents live, in miles.
Questions about crime in Marengo
What are the most common crimes in Marengo?
By expected count, the most common persons and property crimes are other larceny (about 25 a year), shoplifting (about 10 a year) and aggravated assault (about 9 a year). Compared with the U.S., rape / sexual assault stands out most: 1.7 times 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. Marengo's figures add up its 5 block groups. The index compares crimes per resident with the U.S. rate.
- Marengo 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: 8,677. Model updated Oct 20, 2026. Release 2026-2026-10-20-2
Full method and validation·Data sources
CrimeMetric. "Crime in Marengo, Illinois." Vorp Labs, model updated Oct 20, 2026. https://crimemetric.com/il/marengo
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Get a free API keyNearest cities we publish
Major-crime index, U.S. = 100
- Woodstock10 mi39
- Genoa11 mi34
- Hampshire11 mi22
- Poplar Grove12 mi18
- Belvidere12 mi31
- Crystal Lake14 mi47
- Harvard14 mi37
- Wonder Lake14 mi17