Crime Grade · FBI UCR Data · 2025
Marshalltown, IA Crime Grade
How Marshalltown 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
8/10
vs. Iowa cities ≥ 10,000 population
In 2025, the violent crime rate in Marshalltown, IA was 282.5 per 100,000 residents (79 incidents over a population of 27,964). That puts Marshalltown Infinity% above the U.S. rate of 0.0 and 19% above the Iowa statewide rate of 236.6.
That ranks Marshalltown #2,554 of 3,771 ranked U.S. cities, safer than 32% of them, and #29 of 40 in Iowa. Violent crime is down 5% year over year and down 39% over the last five years.
Marshalltown, IA crime — key facts
- National Crime Grade
- C (7/10)
- Iowa Grade
- D (8/10)
- Violent crime rate
- 282.5 / 100k
- National rank
- #2,554 of 3,771
- IA rank
- #29 of 40
- Safer than
- 32% of U.S. cities
- Year over year
- down 5%
- 5-year change
- down 39%
- Population
- 27,964
- Reporting agency
- Marshalltown Police Department
- Data year
- 2025 · FBI UCR
Reported by Marshalltown Police Department (FBI ORI IA0640100) to the FBI Uniform Crime Reporting Program. Download the full dataset (CSV) · methodology.
About Marshalltown, IA
Also known as
- Marshall
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. Marshalltown (red), Iowa (blue), U.S. average (gray dashed).
Marshalltown 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 | 465.3(124) | 676.3(184) | 464.1(127) | 297.4(82) | 282.5(79) |
| Murder | 7.5(2) | 3.7(1) | 7.3(2) | 7.3(2) | 0.0(0) |
| Rape | 82.5(22) | 106.6(29) | 109.6(30) | 43.5(12) | 50.1(14) |
| Robbery | 22.5(6) | 22.1(6) | 43.9(12) | 14.5(4) | 17.9(5) |
| Aggravated assault | 352.7(94) | 544.0(148) | 303.3(83) | 232.1(64) | 214.6(60) |
| Property crime | 1936.1(516) | 1790.0(487) | 1998.8(547) | 1816.8(501) | 1294.5(362) |
| Burglary | 397.7(106) | 323.4(88) | 244.8(67) | 308.2(85) | 207.4(58) |
| Larceny | 1324.5(353) | 1297.5(353) | 1615.1(442) | 1374.4(379) | 904.7(253) |
| Motor vehicle theft | 198.9(53) | 147.0(40) | 124.2(34) | 105.2(29) | 135.9(38) |
How the Crime Grade is calculated
- What is the source of the Marshalltown, 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 Marshalltown 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 Marshalltown calculated?
- Marshalltown'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 Marshalltown 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 Marshalltown to other places
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