Crime in South Dennis, Massachusetts
Major crime in South Dennis is 23% below the U.S. rate per resident: 15% higher for persons crimes and 31% lower for property crimes. Expected major crimes are down 6.9% 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 36% above the U.S. rate
Expected crimes per year in South Dennis 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 South Dennis
The middle half of South Dennis residents live in neighborhoods with a major-crime index between 42 and 55; the typical (median) resident's is 50. The citywide figure (77) is higher than that because crime concentrates in a smaller set of areas.
- 0–5052.9%
- 50–10026.4%
- 100–20020.7%
- 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 6.9% in a year; across Massachusetts it fell 5.7%
Change in expected crimes, with Massachusetts as a whole in gray. The past year uses the reporting agencies' year-to-date FBI data; 2031 is the model's projection.
South Dennis against U.S. places with 2,000 to 5,000 residents
604 of the 1,761 other places of this size have a higher major-crime index than South Dennis; the middle of the group is 58. The 9 nearest in population:
Major-crime index per resident, U.S. = 100; residents in gray.
South Dennis has a higher major-crime index than all of its 8 nearest neighbors
The 8 nearest cities and towns we cover, by major-crime index. The closest, East Dennis (2 mi), is 40% below South Dennis's rate.
Major-crime index per resident, U.S. = 100; distances between where residents live, in miles.
Questions about crime in South Dennis
What are the most common crimes in South Dennis?
By expected count, the most common persons and property crimes are other larceny (about 20 a year), aggravated assault (about 11 a year) and shoplifting (about 6 a year). Compared with the U.S., rape / sexual assault stands out most: 36% above 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. South Dennis's figures add up its 5 block groups. The index compares crimes per resident with the U.S. rate.
- South Dennis 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: 3,465. Model updated Oct 20, 2026. Release 2026-2026-10-20-2
Full method and validation·Data sources
CrimeMetric. "Crime in South Dennis, Massachusetts." Vorp Labs, model updated Oct 20, 2026. https://crimemetric.com/ma/south-dennis
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Major-crime index, U.S. = 100
- East Dennis2 mi47
- Dennis2 mi48
- Dennis Port3 mi62
- Yarmouth Port3 mi35
- South Yarmouth3 mi55
- Harwich Port5 mi44
- West Yarmouth6 mi71
- Barnstable Town10 mi64