Crime in Ottawa, Illinois
Major crime in Ottawa is 39% below the U.S. rate per resident: 31% lower for persons crimes and 40% lower for property crimes. Expected major crimes are down 8.3% 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 2.1 times the U.S. rate
Expected crimes per year in Ottawa 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 Ottawa
The middle half of Ottawa residents live in neighborhoods with a major-crime index between 34 and 66; the typical (median) resident's is 44. The citywide figure (62) is higher than that because crime concentrates in a smaller set of areas.
- 0–5058.0%
- 50–10036.5%
- 100–2003.1%
- 200–4000.0%
- 400+2.4%
Share of residents by the index of their census block group, a neighborhood of roughly 600 to 3,000 people.
Highest in the daytime
Major-crime index by time of week, against the U.S. rate for the same hours.
Major crime fell 8.3% 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.
Ottawa against U.S. places with 10,000 to 25,000 residents
1,261 of the 2,149 other places of this size have a higher major-crime index than Ottawa; the middle of the group is 72. The 9 nearest in population:
Major-crime index per resident, U.S. = 100; residents in gray.
Ottawa 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, Marseilles (8 mi), is 39% below Ottawa's rate.
Major-crime index per resident, U.S. = 100; distances between where residents live, in miles.
Questions about crime in Ottawa
What are the most common crimes in Ottawa?
By expected count, the most common persons and property crimes are shoplifting (about 76 a year), other larceny (about 38 a year) and aggravated assault (about 27 a year). Compared with the U.S., rape / sexual assault stands out most: 2.1 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. Ottawa's figures add up its 18 block groups. The index compares crimes per resident with the U.S. rate.
- Ottawa 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: 19,887. Model updated Oct 20, 2026. Release 2026-2026-10-20-2
Full method and validation·Data sources
CrimeMetric. "Crime in Ottawa, Illinois." Vorp Labs, model updated Oct 20, 2026. https://crimemetric.com/il/ottawa
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Major-crime index, U.S. = 100
- Marseilles8 mi38
- Oglesby12 mi20
- Peru15 mi94
- Streator15 mi98
- Spring Valley19 mi40
- Mendota20 mi26
- Morris21 mi65
- Dwight28 mi28