Crime in Naperville, Illinois
Major crime in Naperville is 65% below the U.S. rate per resident: 81% lower for persons crimes and 62% lower for property crimes. Expected major crimes are down 2.7% 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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Every crime type in Naperville is near or below the U.S. rate
Expected crimes per year in Naperville 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 Naperville
The middle half of Naperville residents live in neighborhoods with a major-crime index between 8 and 34; the typical (median) resident's is 15. The citywide figure (35) is higher than that because crime concentrates in a smaller set of areas.
- 0–5084.3%
- 50–1009.8%
- 100–2003.0%
- 200–4002.9%
- 400+0.0%
Share of residents by the index of their census block group, a neighborhood of roughly 600 to 3,000 people.
About the same at every time of week
Major-crime index by time of week, against the U.S. rate for the same hours.
Major crime fell 2.7% 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.
Naperville against U.S. places with 100,000 to 250,000 residents
259 of the 268 other places of this size have a higher major-crime index than Naperville; the middle of the group is 109. The 9 nearest in population:
Major-crime index per resident, U.S. = 100; residents in gray.
Naperville has a higher major-crime index than 4 of its 8 nearest neighbors
The 8 nearest cities and towns we cover, by major-crime index. The closest, Lisle (5 mi), is 14% below Naperville's rate.
Major-crime index per resident, U.S. = 100; distances between where residents live, in miles.
Questions about crime in Naperville
What are the most common crimes in Naperville?
By expected count, the most common persons and property crimes are shoplifting (about 336 a year), other larceny (about 285 a year) and theft from vehicle (about 102 a year). Compared with the U.S., shoplifting stands out most: 32% below 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. Naperville's figures add up its 96 block groups. The index compares crimes per resident with the U.S. rate.
- Naperville's published incident records inform the estimate for every neighborhood.
- 6.1% 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: 155,748. Model updated Oct 20, 2026. Release 2026-2026-10-20-2
Full method and validation·Data sources
CrimeMetric. "Crime in Naperville, Illinois." Vorp Labs, model updated Oct 20, 2026. https://crimemetric.com/il/naperville
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Major-crime index, U.S. = 100
- Lisle5 mi30
- Bolingbrook5 mi48
- Warrenville6 mi38
- Woodridge6 mi33
- Aurora6 mi69
- Wheaton8 mi34
- Downers Grove8 mi35
- Romeoville8 mi49