Crime Grade · FBI UCR Data · 2025
Chelmsford, MA Crime Grade
How Chelmsford 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
4/10
vs. all U.S. cities ≥ 25,000 population
Massachusetts
5/10
vs. Massachusetts cities ≥ 10,000 population
In 2025, the violent crime rate in Chelmsford, MA was 132.4 per 100,000 residents (49 incidents over a population of 37,003). That puts Chelmsford Infinity% above the U.S. rate of 0.0 and 56% below the Massachusetts statewide rate of 303.5.
That ranks Chelmsford #1,455 of 3,771 ranked U.S. cities, safer than 61% of them, and #75 of 186 in Massachusetts. Violent crime is up 8% year over year and up 32% over the last five years.
Chelmsford, MA crime — key facts
- National Crime Grade
- B (4/10)
- Massachusetts Grade
- B (5/10)
- Violent crime rate
- 132.4 / 100k
- National rank
- #1,455 of 3,771
- MA rank
- #75 of 186
- Safer than
- 61% of U.S. cities
- Year over year
- up 8%
- 5-year change
- up 32%
- Population
- 37,003
- Reporting agency
- Chelmsford Police Department
- Data year
- 2025 · FBI UCR
Reported by Chelmsford Police Department (FBI ORI MA0091300) to the FBI Uniform Crime Reporting Program. Download the full dataset (CSV) · methodology.
Violent crime rate, 5-year trend
Per 100,000 residents. Chelmsford (red), Massachusetts (blue), U.S. average (gray dashed).
Chelmsford vs. U.S., 2025 — 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 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Violent crime | 100.0(36) | 112.3(40) | 114.5(41) | 122.3(45) | 132.4(49) |
| Murder | 0.0(0) | 0.0(0) | 0.0(0) | 0.0(0) | 0.0(0) |
| Rape | 19.5(7) | 14.0(5) | 25.1(9) | 16.3(6) | 13.5(5) |
| Robbery | 5.6(2) | 5.6(2) | 5.6(2) | 2.7(1) | 2.7(1) |
| Aggravated assault | 75.0(27) | 92.6(33) | 83.8(30) | 103.3(38) | 116.2(43) |
| Property crime | 661.4(238) | 732.5(261) | 971.9(348) | 1127.9(415) | 964.8(357) |
| Burglary | 52.8(19) | 73.0(26) | 33.5(12) | 116.9(43) | 21.6(8) |
| Larceny | 586.4(211) | 620.3(221) | 888.1(318) | 975.7(359) | 899.9(333) |
| Motor vehicle theft | 22.2(8) | 36.5(13) | 50.3(18) | 35.3(13) | 43.2(16) |
How the Crime Grade is calculated
- What is the source of the Chelmsford, 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 Chelmsford 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 Chelmsford calculated?
- Chelmsford'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 Chelmsford 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 Chelmsford to other places
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