Crime in Lemont, Illinois
Major crime in Lemont is 76% below the U.S. rate per resident: 82% lower for persons crimes and 75% lower for property crimes. Expected major crimes are down 11.0% 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 Lemont is near or below the U.S. rate
Expected crimes per year in Lemont 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 Lemont
The middle half of Lemont residents live in neighborhoods with a major-crime index between 12 and 23; the typical (median) resident's is 19. The citywide figure (24) is higher than that because crime concentrates in a smaller set of areas.
- 0–5082.7%
- 50–10017.3%
- 100–2000.0%
- 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 11.0% 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.
Lemont against U.S. places with 10,000 to 25,000 residents
2,079 of the 2,149 other places of this size have a higher major-crime index than Lemont; the middle of the group is 72. The 9 nearest in population:
Major-crime index per resident, U.S. = 100; residents in gray.
Lemont has a higher major-crime index than 2 of its 8 nearest neighbors
The 8 nearest cities and towns we cover, by major-crime index. The closest, Homer Glen (4 mi), is 18% below Lemont's rate.
Major-crime index per resident, U.S. = 100; distances between where residents live, in miles.
Questions about crime in Lemont
What are the most common crimes in Lemont?
By expected count, the most common persons and property crimes are shoplifting (about 26 a year), other larceny (about 17 a year) and theft from vehicle (about 11 a year). Compared with the U.S., rape / sexual assault stands out most: 54% 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. Lemont's figures add up its 10 block groups. The index compares crimes per resident with the U.S. rate.
- Lemont 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: 21,448. Model updated Oct 20, 2026. Release 2026-2026-10-20-2
Full method and validation·Data sources
CrimeMetric. "Crime in Lemont, Illinois." Vorp Labs, model updated Oct 20, 2026. https://crimemetric.com/il/lemont
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Major-crime index, U.S. = 100
- Homer Glen4 mi19
- Lockport6 mi22
- Darien6 mi44
- Bolingbrook6 mi48
- Woodridge7 mi33
- Burr Ridge7 mi54
- Romeoville7 mi49
- Willowbrook8 mi48