Crime in Arlington, Massachusetts
Major crime in Arlington is 73% below the U.S. rate per resident: 82% lower for persons crimes and 71% lower for property crimes. Expected major crimes are down 14.4% 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 Arlington is near or below the U.S. rate
Expected crimes per year in Arlington 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 Arlington
The middle half of Arlington residents live in neighborhoods with a major-crime index between 16 and 36; the typical (median) resident's is 21. The citywide figure (27) is higher than that because crime concentrates in a smaller set of areas.
- 0–5096.3%
- 50–1002.4%
- 100–2001.3%
- 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 14.4% 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.
Arlington against U.S. places with 25,000 to 50,000 residents
926 of the 960 other places of this size have a higher major-crime index than Arlington; the middle of the group is 77. The 9 nearest in population:
Major-crime index per resident, U.S. = 100; residents in gray.
Arlington has a lower major-crime index than all of its 8 nearest neighbors
The 8 nearest cities and towns we cover, by major-crime index. The closest, Belmont (2 mi), is 1.6 times Arlington's rate.
Major-crime index per resident, U.S. = 100; distances between where residents live, in miles.
Questions about crime in Arlington
What are the most common crimes in Arlington?
By expected count, the most common persons and property crimes are other larceny (about 111 a year), shoplifting (about 30 a year) and aggravated assault (about 21 a year). Compared with the U.S., other larceny stands out most: 53% 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. Arlington's figures add up its 45 block groups. The index compares crimes per resident with the U.S. rate.
- Arlington 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: 47,099. Model updated Oct 20, 2026. Release 2026-2026-10-20-2
Full method and validation·Data sources
CrimeMetric. "Crime in Arlington, Massachusetts." Vorp Labs, model updated Oct 20, 2026. https://crimemetric.com/ma/arlington
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Major-crime index, U.S. = 100
- Belmont2 mi44
- Medford3 mi65
- Watertown Town3 mi95
- Somerville3 mi109
- Cambridge4 mi185
- Waltham5 mi57
- Woburn5 mi59
- Malden5 mi64