Crime in Groton, Connecticut
Major crime in Groton is 59% below the U.S. rate per resident: 60% lower for persons crimes and 59% lower for property crimes. Expected major crimes are down 8.0% 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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Drugs and alcohol stands out most, at 1.6 times the U.S. rate
Expected crimes per year in Groton 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 Groton
The middle half of Groton residents live in neighborhoods with a major-crime index between 22 and 48; the typical (median) resident's is 46.
- 0–5081.9%
- 50–10018.1%
- 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 8.0% in a year; across Connecticut it fell 8.3%
Change in expected crimes, with Connecticut as a whole in gray. The past year uses the reporting agencies' year-to-date FBI data; 2031 is the model's projection.
Groton against U.S. places with 10,000 to 25,000 residents
1,699 of the 2,149 other places of this size have a higher major-crime index than Groton; the middle of the group is 72. The 9 nearest in population:
Major-crime index per resident, U.S. = 100; residents in gray.
Groton 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, Long Hill (1 mi), is 1.5 times Groton's rate.
Major-crime index per resident, U.S. = 100; distances between where residents live, in miles.
Questions about crime in Groton
What are the most common crimes in Groton?
By expected count, the most common persons and property crimes are other larceny (about 37 a year), aggravated assault (about 8 a year) and motor vehicle theft (about 8 a year). Compared with the U.S., drugs and alcohol stands out most: 1.6 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. Groton's figures add up its 6 block groups. The index compares crimes per resident with the U.S. rate.
- Groton 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: 10,101. Model updated Oct 20, 2026. Release 2026-2026-10-20-2
Full method and validation·Data sources
CrimeMetric. "Crime in Groton, Connecticut." Vorp Labs, model updated Oct 20, 2026. https://crimemetric.com/ct/groton
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Major-crime index, U.S. = 100
- Long Hill1 mi62
- New London2 mi93
- Conning Towers-Nautilus Park3 mi21
- Waterford3 mi83
- Mystic6 mi67
- Niantic7 mi48
- Norwich13 mi61
- Westerly, RI14 mi40