Crime Grade · FBI UCR Data · 2025
Ottumwa, IA Crime Grade
How Ottumwa grades for violent crime against every other reporting U.S. city — and against the rest of Iowa — based on the FBI's Uniform Crime Reporting data.
National
7/10
vs. all U.S. cities ≥ 25,000 population
Iowa
7/10
vs. Iowa cities ≥ 10,000 population
In 2025, the violent crime rate in Ottumwa, IA was 280.2 per 100,000 residents (72 incidents over a population of 25,696). That puts Ottumwa Infinity% above the U.S. rate of 0.0 and 18% above the Iowa statewide rate of 236.6.
That ranks Ottumwa #2,540 of 3,771 ranked U.S. cities, safer than 33% of them, and #28 of 40 in Iowa. Violent crime is down 31% year over year and down 68% over the last five years.
Ottumwa, IA crime — key facts
- National Crime Grade
- C (7/10)
- Iowa Grade
- C (7/10)
- Violent crime rate
- 280.2 / 100k
- National rank
- #2,540 of 3,771
- IA rank
- #28 of 40
- Safer than
- 33% of U.S. cities
- Year over year
- down 31%
- 5-year change
- down 68%
- Population
- 25,696
- Reporting agency
- Ottumwa Police Department
- Data year
- 2025 · FBI UCR
Reported by Ottumwa Police Department (FBI ORI IA0900100) to the FBI Uniform Crime Reporting Program. Download the full dataset (CSV) · methodology.
About Ottumwa, IA
Also known as
- Louisville
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. Ottumwa (red), Iowa (blue), U.S. average (gray dashed).
Ottumwa 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 | 872.1(212) | 776.3(196) | 339.5(85) | 405.0(102) | 280.2(72) |
| Murder | 12.3(3) | 4.0(1) | 4.0(1) | 7.9(2) | 0.0(0) |
| Rape | 189.2(46) | 174.3(44) | 59.9(15) | 95.3(24) | 35.0(9) |
| Robbery | 45.3(11) | 27.7(7) | 20.0(5) | 27.8(7) | 15.6(4) |
| Aggravated assault | 625.3(152) | 570.3(144) | 255.6(64) | 274.0(69) | 229.6(59) |
| Property crime | 3266.4(794) | 3707.1(936) | 2851.4(714) | 2680.2(675) | 2218.2(570) |
| Burglary | 522.5(127) | 546.6(138) | 511.2(128) | 432.8(109) | 361.9(93) |
| Larceny | 2394.3(582) | 2812.0(710) | 1960.9(491) | 1997.2(503) | 1634.5(420) |
| Motor vehicle theft | 337.3(82) | 316.8(80) | 371.4(93) | 234.3(59) | 210.1(54) |
How the Crime Grade is calculated
- What is the source of the Ottumwa, IA 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 Ottumwa 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 Ottumwa calculated?
- Ottumwa's rate placed against all FBI-reporting U.S. cities with population ≥ 25,000. 1 = safest.
- How is the Iowa state decile calculated?
- Same calculation restricted to Iowa 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 Ottumwa 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 Iowa
Comparable Iowa cities by population.
Compare Ottumwa to other places
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