Cohasset, MA has a A safety grade (89/100) with a violent crime rate of 82 per 100,000, 77% below the national average.
Cohasset is a small municipal reporter (8,555 on the UCR row). Per-100,000 violent and property rates are shown with MA and U.S. context.
Cohasset, MA carries a PlainCrime A safety grade with violent crime 77% below the U.S. average
According to the FBI Uniform Crime Reporting (UCR) Program for 2024, Cohasset, MA shows violent crime at 81.8 per 100,000 residents and property crime at 327.3 per 100,000. Violent crime runs 77% below the U.S. average. PlainCrime assigns grade A from those rates. Figures are voluntary agency submissions joined to population denominators; incomplete coverage can move the number.
The verdict
Cohasset earns an A safety grade: violent crime runs 77% below the U.S. average, placing it safer than most U.S. cities.
Based on 7 reported violent incidents in a population of 8,555. At this volume, one additional or one fewer report can shift the rate and letter grade noticeably; small-city crime counts are inherently more volatile year to year than large-city counts, so treat this grade as a data point, not a precise ranking.
Small-count caution
Cohasset reported 7 violent offences in 2024 against a population of 8,555. At this volume one additional or one fewer report moves the per-100,000 rate noticeably, so the figure is better read as a data point than as a precise measurement, and year-to-year swings here are expected.
Comparable rate records
The nearest comparable 2024 records to Cohasset's 81.8 violent-crime rate per 100,000 are Swampscott (81.7), Spencer (82.4), Pelham (79.4), Hopkinton (84.3). These are same-year agency submissions that pass the same completeness screen, not a claim that the cities have identical conditions. They make the cohort position above checkable against named records instead of a generic state average.
Position in the state cohort
At 81.8 reported violent offenses per 100,000 residents in 2024, Cohasset ranks 226 of 317 — above 91 of the 316 other Massachusetts cities whose 2024 submission passes this site’s completeness test. That is -43.6% against the cohort median of 145.1. Cities that did not report, or that reported implausibly low totals, are excluded from this cohort rather than counted as low-crime.
2020–2024 direction
Across 5 comparable reporting years, the rate moved from 104.5 per 100,000 in 2020 to 81.8 in 2024 (-21.7%). The highest observed value was 155.5 in 2023 and the lowest 57.4 in 2021. Years whose submission failed the completeness test are left out of this comparison rather than plotted as change.
Property counts dominate Cohasset's FBI UCR Table 8 municipal row. Per-100,000 rates use the reporting-year population on that row; cities that fail the completeness test stay out of rate rankings. A citywide figure rarely describes any single neighbourhood inside the municipal boundary.
Based on 7 reported violent incidents in a population of 8,555. At this volume, one additional or one fewer report can shift the rate and letter grade noticeably; small-city crime counts are inherently more volatile year to year than large-city counts, so treat this grade as a data point, not a precise ranking.
Small-city offense counts above are voluntary UCR submissions, not neighbourhood advice. Year-to-year swings can look large when the population base is modest.
| Offense | Count | Rate /100K |
|---|---|---|
| Property Crime | 28 | 327.3 |
| Larceny-Theft | 21 | 245.5 |
| Burglary | 6 | 70.1 |
| Motor Vehicle Theft | 1 | 11.7 |
| Arson | 0 | 0 |
| Violent Crime | 7 | 81.8 |
| Aggravated Assault | 7 | 81.8 |
| Murder | 0 | 0 |
| Rape | 0 | 0 |
| Robbery | 0 | 0 |
Lead series · fell across 5 comparable years · FBI UCR
Secondary series · fell · 2020-2024 · FBI UCR
| Year | Coverage | Population | Violent Rate | Property Rate |
|---|---|---|---|---|
| 2020 | Comparable | 8,616 | 104.5 | 394.6 |
| 2021 | Comparable | 8,707 | 57.4 | 493.9 |
| 2022 | Comparable | 8,392 | 59.6 | 440.9 |
| 2023 | Comparable | 8,359 | 155.5 | 562.3 |
| 2024 | Comparable | 8,555 | 81.8 | 327.3 |
Cohasset's crime figures on this page originate from Cohasset Police Department's submission to the FBI's Uniform Crime Reporting Program.
This agency reports via NIBRS, the incident-based system that captures more detail per offense (multiple crimes per incident, victim/offender data) than the older summary counts.
Crime rates read differently at different scales, so these are the Massachusetts cities closest to Cohasset in population. Their populations run from 8,362 to 8,729, against 8,555 here. Or use our side-by-side compare tool to benchmark two cities directly.
These Massachusetts cities report the closest violent-crime rates to Cohasset's 81.8/100K (same FBI UCR vintage rules; size peers above are excluded so the two lists stay distinct).
Small-city read: Cohasset is sourced from FBI UCR Table 8 for 2024; rates use that row's population.
Small-city rows use the same per-100,000 formula; a few unreported years can leave gaps in the trend table. Verify the agency's submission on FBI.gov UCR.
Disclaimer (small city): UCR counts here are informational only. They are not a victimization probability. Source: FBI UCR Program.
Small-city rate methodology for how Cohasset's small city row is sourced and ranked.
Source: FBI Uniform Crime Reporting (UCR) Program CIUS Table 8 municipal crime rates · 2024 Cohasset, MA rates use the reporting-year population on the municipal row.
Bulk download: city crime dataset (CSV/JSON)
Every figure on PlainCrime is rendered directly from FBI Uniform Crime Reporting (UCR) source data, no number is typed in by an editor. Cohasset is scored as a small-city UCR reporter (8,555 on the row). See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.