Crime Grade · FBI UCR Data · 2025
Darien, CT Crime Grade
How Darien 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
1/10
vs. all U.S. cities ≥ 25,000 population
Connecticut
4/10
vs. Connecticut cities ≥ 10,000 population
In 2025, the violent crime rate in Darien, CT was 30.7 per 100,000 residents (7 incidents over a population of 22,807). That puts Darien 91% below the U.S. rate of 325.3 and 72% below the Connecticut statewide rate of 108.0.
That ranks Darien #250 of 3,771 ranked U.S. cities, safer than 93% of them, and #31 of 86 in Connecticut. Violent crime is down 3% year over year and down 33% over the last five years.
Darien, CT crime — key facts
- National Crime Grade
- A (1/10)
- Connecticut Grade
- B (4/10)
- Violent crime rate
- 30.7 / 100k
- National rank
- #250 of 3,771
- CT rank
- #31 of 86
- Safer than
- 93% of U.S. cities
- Year over year
- down 3%
- 5-year change
- down 33%
- Population
- 22,807
- Reporting agency
- Darien Police Department
- Data year
- 2025 · FBI UCR
Reported by Darien Police Department (FBI ORI CT0003500) to the FBI Uniform Crime Reporting Program. Download the full dataset (CSV) · methodology.
Violent crime rate, 5-year trend
Per 100,000 residents. Darien (red), Connecticut (blue), U.S. average (gray dashed).
Darien 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 | 45.9(10) | 41.8(9) | 13.5(3) | 31.5(7) | 30.7(7) |
| Murder | 0.0(0) | 0.0(0) | 0.0(0) | 0.0(0) | 0.0(0) |
| Rape | 4.6(1) | 0.0(0) | 0.0(0) | 4.5(1) | 8.8(2) |
| Robbery | 18.4(4) | 13.9(3) | 0.0(0) | 9.0(2) | 4.4(1) |
| Aggravated assault | 22.9(5) | 27.8(6) | 13.5(3) | 18.0(4) | 17.5(4) |
| Property crime | 1698.0(370) | 1573.2(339) | 1104.9(245) | 1053.3(234) | 719.1(164) |
| Burglary | 128.5(28) | 139.2(30) | 117.3(26) | 153.0(34) | 78.9(18) |
| Larceny | 1326.3(289) | 1220.5(263) | 825.3(183) | 697.7(155) | 556.8(127) |
| Motor vehicle theft | 243.2(53) | 213.5(46) | 162.4(36) | 202.6(45) | 83.3(19) |
How the Crime Grade is calculated
- What is the source of the Darien, 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 Darien 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 Darien calculated?
- Darien'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 Darien 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 Darien to other places
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