Crime Grade · FBI UCR Data · 2025
Thornton, CO Crime Grade
How Thornton grades for violent crime against every other reporting U.S. city — and against the rest of Colorado — based on the FBI's Uniform Crime Reporting data.
National
6/10
vs. all U.S. cities ≥ 25,000 population
Colorado
4/10
vs. Colorado cities ≥ 10,000 population
In 2025, the violent crime rate in Thornton, CO was 243.5 per 100,000 residents (360 incidents over a population of 147,837). That puts Thornton Infinity% above the U.S. rate of 0.0 and 42% below the Colorado statewide rate of 420.3.
Violent crime rate, 5-year trend
Per 100,000 residents. Thornton (red), Colorado (blue), U.S. average (gray dashed).
Thornton 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 | 307.9(466) | 291.5(417) | 289.2(416) | 283.9(414) | 243.5(360) |
| Murder | 3.3(5) | 2.1(3) | 3.5(5) | 1.4(2) | 1.4(2) |
| Rape | 115.0(174) | 104.9(150) | 100.1(144) | 87.1(127) | 65.6(97) |
| Robbery | 51.5(78) | 63.6(91) | 62.6(90) | 49.4(72) | 31.1(46) |
| Aggravated assault | 138.1(209) | 120.9(173) | 123.1(177) | 146.0(213) | 145.4(215) |
| Property crime | 3320.0(5,024) | 3524.5(5,042) | 3035.4(4,366) | 2879.7(4,200) | 2266.7(3,351) |
| Burglary | 282.2(427) | 262.1(375) | 231.5(333) | 279.1(407) | 161.7(239) |
| Larceny | 2247.5(3,401) | 2400.5(3,434) | 2212.9(3,183) | 2087.1(3,044) | 1685.6(2,492) |
| Motor vehicle theft | 778.5(1,178) | 838.8(1,200) | 571.5(822) | 493.7(720) | 400.4(592) |
How the Crime Grade is calculated
- Source: FBI Uniform Crime Reporting via the Crime Data Explorer. Agency-level data, pulled directly. No third-party aggregators, no proprietary score.
- Metric: Violent crime rate per 100,000 residents (murder + rape + robbery + aggravated assault), most recent fully-reported year.
- National decile: Thornton's rate placed against all FBI-reporting U.S. cities with population ≥ 25,000. 1 = safest.
- State decile: Same calculation restricted to Colorado cities with population ≥ 10,000.
- Letter grade: 1–3 = A · 4–5 = B · 6–7 = C · 8 = D · 9–10 = F.
- Refresh: Twice a year. The FBI typically releases the prior year's full data each September.
- Limits: The FBI relies on local agency reporting. Rates reflect what was reported, not what occurred.
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