Crime Grade · FBI UCR Data · 2025
Plymouth, CT Crime Grade
How Plymouth grades for violent crime against every other reporting U.S. city — and against the rest of Connecticut — based on the FBI's Uniform Crime Reporting data.
National
2/10
vs. all U.S. cities ≥ 25,000 population
Connecticut
6/10
vs. Connecticut cities ≥ 10,000 population
In 2025, the violent crime rate in Plymouth, CT was 50.3 per 100,000 residents (6 incidents over a population of 11,936). That puts Plymouth 85% below the U.S. rate of 325.3 and 53% below the Connecticut statewide rate of 108.0.
That ranks Plymouth #507 of 3,771 ranked U.S. cities, safer than 87% of them, and #49 of 86 in Connecticut. Violent crime is up 493% year over year and up 92% over the last five years.
Plymouth, CT crime — key facts
- National Crime Grade
- A (2/10)
- Connecticut Grade
- C (6/10)
- Violent crime rate
- 50.3 / 100k
- National rank
- #507 of 3,771
- CT rank
- #49 of 86
- Safer than
- 87% of U.S. cities
- Year over year
- up 493%
- 5-year change
- up 92%
- Population
- 11,936
- Reporting agency
- Plymouth Police Department
- Data year
- 2025 · FBI UCR
Reported by Plymouth Police Department (FBI ORI CT0011100) to the FBI Uniform Crime Reporting Program. Download the full dataset (CSV) · methodology.
About Plymouth, CT
Also known as
- Northbury
- Plymouth Center
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. Plymouth (red), Connecticut (blue), U.S. average (gray dashed).
Plymouth 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 | 26.1(3) | 17.2(2) | 25.5(3) | 8.5(1) | 50.3(6) |
| Murder | 0.0(0) | 0.0(0) | 8.5(1) | 0.0(0) | 0.0(0) |
| Rape | 26.1(3) | 0.0(0) | 17.0(2) | 8.5(1) | 41.9(5) |
| Robbery | 0.0(0) | 8.6(1) | 0.0(0) | 0.0(0) | 0.0(0) |
| Aggravated assault | 0.0(0) | 8.6(1) | 0.0(0) | 0.0(0) | 8.4(1) |
| Property crime | 957.7(110) | 549.1(64) | 749.4(88) | 491.3(58) | 477.5(57) |
| Burglary | 52.2(6) | 94.4(11) | 51.1(6) | 33.9(4) | 16.8(2) |
| Larceny | 783.6(90) | 368.9(43) | 502.4(59) | 406.6(48) | 402.1(48) |
| Motor vehicle theft | 113.2(13) | 85.8(10) | 187.3(22) | 50.8(6) | 58.6(7) |
How the Crime Grade is calculated
- What is the source of the Plymouth, CT 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 Plymouth 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 Plymouth calculated?
- Plymouth's rate placed against all FBI-reporting U.S. cities with population ≥ 25,000. 1 = safest.
- How is the Connecticut state decile calculated?
- Same calculation restricted to Connecticut 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 Plymouth 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 Connecticut
Comparable Connecticut cities by population.
Compare Plymouth to other places
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