Crime Grade · FBI UCR Data · 2025
Arnold, MO Crime Grade
How Arnold grades for violent crime against every other reporting U.S. city — and against the rest of Missouri — based on the FBI's Uniform Crime Reporting data.
National
3/10
vs. all U.S. cities ≥ 25,000 population
Missouri
1/10
vs. Missouri cities ≥ 10,000 population
In 2025, the violent crime rate in Arnold, MO was 71.2 per 100,000 residents (15 incidents over a population of 21,068). That puts Arnold 78% below the U.S. rate of 325.3 and 83% below the Missouri statewide rate of 422.6.
That ranks Arnold #789 of 3,771 ranked U.S. cities, safer than 79% of them, and #8 of 77 in Missouri. Violent crime is down 44% year over year and down 53% over the last five years.
Arnold, MO crime — key facts
- National Crime Grade
- A (3/10)
- Missouri Grade
- A (1/10)
- Violent crime rate
- 71.2 / 100k
- National rank
- #789 of 3,771
- MO rank
- #8 of 77
- Safer than
- 79% of U.S. cities
- Year over year
- down 44%
- 5-year change
- down 53%
- Population
- 21,068
- Reporting agency
- Arnold Police Department
- Data year
- 2025 · FBI UCR
Reported by Arnold Police Department (FBI ORI MO0500700) to the FBI Uniform Crime Reporting Program. Download the full dataset (CSV) · methodology.
Violent crime rate, 5-year trend
Per 100,000 residents. Arnold (red), Missouri (blue), U.S. average (gray dashed).
Arnold 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 | 151.1(32) | 72.1(15) | 115.2(24) | 127.8(27) | 71.2(15) |
| Murder | 0.0(0) | 0.0(0) | 0.0(0) | 0.0(0) | 0.0(0) |
| Rape | 28.3(6) | 9.6(2) | 19.2(4) | 23.7(5) | 14.2(3) |
| Robbery | 14.2(3) | 0.0(0) | 14.4(3) | 4.7(1) | 4.7(1) |
| Aggravated assault | 108.6(23) | 62.5(13) | 81.6(17) | 99.4(21) | 52.2(11) |
| Property crime | 1610.6(341) | 1553.3(323) | 1943.7(405) | 1410.5(298) | 802.2(169) |
| Burglary | 61.4(13) | 43.3(9) | 48.0(10) | 52.1(11) | 47.5(10) |
| Larceny | 1223.3(259) | 1293.6(269) | 1708.5(356) | 1263.7(267) | 702.5(148) |
| Motor vehicle theft | 321.2(68) | 206.8(43) | 177.6(37) | 94.7(20) | 47.5(10) |
How the Crime Grade is calculated
- What is the source of the Arnold, MO 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 Arnold 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 Arnold calculated?
- Arnold's rate placed against all FBI-reporting U.S. cities with population ≥ 25,000. 1 = safest.
- How is the Missouri state decile calculated?
- Same calculation restricted to Missouri 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 Arnold 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 Missouri
Comparable Missouri cities by population.
Compare Arnold to other places
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