Crime Grade · FBI UCR Data · 2024
Chelsea, MA Crime Grade
How Chelsea grades for violent crime against every other reporting U.S. city — and against the rest of Massachusetts — based on the FBI's Uniform Crime Reporting data.
National
10/10
vs. all U.S. cities ≥ 25,000 population
Massachusetts
10/10
vs. Massachusetts cities ≥ 10,000 population
In 2024, the violent crime rate in Chelsea, MA was 984.2 per 100,000 residents (377 incidents over a population of 38,307). That puts Chelsea Infinity% above the U.S. rate of 0.0 and 218% above the Massachusetts statewide rate of 309.9.
That ranks Chelsea #3,683 of 3,771 ranked U.S. cities, safer than 2% of them, and #184 of 186 in Massachusetts. Violent crime is up 1% year over year and up 57% over the last five years.
Chelsea, MA crime — key facts
- National Crime Grade
- F (10/10)
- Massachusetts Grade
- F (10/10)
- Violent crime rate
- 984.2 / 100k
- National rank
- #3,683 of 3,771
- MA rank
- #184 of 186
- Safer than
- 2% of U.S. cities
- Year over year
- up 1%
- 5-year change
- up 57%
- Population
- 38,307
- Reporting agency
- Chelsea Police Department
- Data year
- 2024 · FBI UCR
Reported by Chelsea Police Department (FBI ORI MA0130300) to the FBI Uniform Crime Reporting Program. Download the full dataset (CSV) · methodology.
About Chelsea, MA
Also known as
- Winnisemit
- Winnissimmet
- Winnisimmet
- Winne-ashim-ut
- Winisemit
- Winnet Semet
- Rumney Marsh
- Romney Marsh
Name history sourced from the USGS Geographic Names Information System (GNIS) — public-domain federal geographic-names data.
Violent crime rate, 5-year trend
Per 100,000 residents. Chelsea (red), Massachusetts (blue), U.S. average (gray dashed).
Chelsea vs. U.S., 2024 — by offense
Rates per 100,000 residents for each offense category.
Full data, last 5 years
Rates per 100,000 residents. Raw counts in parentheses.
| Offense | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|
| Violent crime | 627.6(251) | 730.5(292) | 806.1(303) | 970.0(367) | 984.2(377) |
| Murder | 0.0(0) | 5.0(2) | 0.0(0) | 0.0(0) | 5.2(2) |
| Rape | 45.0(18) | 77.6(31) | 71.8(27) | 105.7(40) | 86.1(33) |
| Robbery | 102.5(41) | 170.1(68) | 159.6(60) | 163.9(62) | 120.1(46) |
| Aggravated assault | 480.1(192) | 477.8(191) | 574.6(216) | 700.4(265) | 772.7(296) |
| Property crime | 1432.7(573) | 1658.7(663) | 1817.0(683) | 1630.7(617) | 1451.4(556) |
| Burglary | 245.0(98) | 202.6(81) | 215.5(81) | 179.7(68) | 148.8(57) |
| Larceny | 1002.6(401) | 1305.9(522) | 1388.7(522) | 1234.2(467) | 1159.1(444) |
| Motor vehicle theft | 180.0(72) | 140.1(56) | 202.2(76) | 206.1(78) | 135.7(52) |
How the Crime Grade is calculated
- What is the source of the Chelsea, MA Crime Grade?
- FBI Uniform Crime Reporting via the Crime Data Explorer. Agency-level data, pulled directly. No third-party aggregators, no proprietary score.
- What metric does the Chelsea Crime Grade use?
- Violent crime rate per 100,000 residents (murder + rape + robbery + aggravated assault), most recent fully-reported year.
- How is the national decile for Chelsea calculated?
- Chelsea's rate placed against all FBI-reporting U.S. cities with population ≥ 25,000. 1 = safest.
- How is the Massachusetts state decile calculated?
- Same calculation restricted to Massachusetts cities with population ≥ 10,000.
- How do decile scores convert to a letter grade?
- 1–3 = A · 4–5 = B · 6–7 = C · 8 = D · 9–10 = F.
- How often is the Chelsea Crime Grade refreshed?
- Twice a year. The FBI typically releases the prior year's full data each September.
- What are the limits of this Crime Grade?
- The FBI relies on local agency reporting. Rates reflect what was reported, not what occurred.
Nearby cities in Massachusetts
Comparable Massachusetts cities by population.
Compare Chelsea to other places
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