Crime in Derby, Connecticut
Major crime in Derby is 24% above the U.S. rate per resident: 48% lower for persons crimes and 39% higher for property crimes. Expected major crimes are down 10.5% 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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Motor vehicle theft stands out most, at 3.2 times the U.S. rate
Expected crimes per year in Derby 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 Derby
The middle half of Derby residents live in neighborhoods with a major-crime index between 73 and 100; the typical (median) resident's is 85. The citywide figure (124) is higher than that because crime concentrates in a smaller set of areas.
- 0–5016.0%
- 50–10063.2%
- 100–20012.9%
- 200–4000.0%
- 400+7.8%
Share of residents by the index of their census block group, a neighborhood of roughly 600 to 3,000 people.
Highest on weeknights
Major-crime index by time of week, against the U.S. rate for the same hours.
Major crime fell 10.5% 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.
Derby against U.S. places with 10,000 to 25,000 residents
437 of the 2,149 other places of this size have a higher major-crime index than Derby; the middle of the group is 72. The 9 nearest in population:
Major-crime index per resident, U.S. = 100; residents in gray.
Derby 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, Ansonia (1 mi), is 32% below Derby's rate.
Major-crime index per resident, U.S. = 100; distances between where residents live, in miles.
Questions about crime in Derby
What are the most common crimes in Derby?
By expected count, the most common persons and property crimes are shoplifting (about 88 a year), motor vehicle theft (about 66 a year) and theft from vehicle (about 53 a year). Compared with the U.S., motor vehicle theft stands out most: 3.2 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. Derby's figures add up its 8 block groups. The index compares crimes per resident with the U.S. rate.
- Derby has no published incident records in our data, so its estimate relies on agency totals and neighborhood characteristics.
- 13.9% 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: 13,076. Model updated Oct 20, 2026. Release 2026-2026-10-20-2
Full method and validation·Data sources
CrimeMetric. "Crime in Derby, Connecticut." Vorp Labs, model updated Oct 20, 2026. https://crimemetric.com/ct/derby
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Major-crime index, U.S. = 100
- Ansonia1 mi84
- Orange4 mi199
- West Haven7 mi54
- Daniels Farm7 mi36
- Milford7 mi89
- Trumbull Center8 mi144
- New Haven8 mi192
- Long Hill9 mi59