Crime Grade · FBI UCR Data · 2025
Norwalk, IA Crime Grade
How Norwalk 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
2/10
vs. all U.S. cities ≥ 25,000 population
Iowa
1/10
vs. Iowa cities ≥ 10,000 population
In 2025, the violent crime rate in Norwalk, IA was 49.7 per 100,000 residents (8 incidents over a population of 16,087). That puts Norwalk 85% below the U.S. rate of 325.3 and 79% below the Iowa statewide rate of 236.6.
Violent crime rate, 5-year trend
Per 100,000 residents. Norwalk (red), Iowa (blue), U.S. average (gray dashed).
Norwalk 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 | 62.2(8) | 55.9(8) | 53.9(8) | 109.1(17) | 49.7(8) |
| Murder | 0.0(0) | 0.0(0) | 13.5(2) | 0.0(0) | 0.0(0) |
| Rape | 7.8(1) | 21.0(3) | 13.5(2) | 25.7(4) | 12.4(2) |
| Robbery | 0.0(0) | 7.0(1) | 0.0(0) | 0.0(0) | 0.0(0) |
| Aggravated assault | 54.5(7) | 28.0(4) | 26.9(4) | 83.4(13) | 37.3(6) |
| Property crime | 256.7(33) | 216.8(31) | 424.2(63) | 179.6(28) | 279.7(45) |
| Burglary | 38.9(5) | 42.0(6) | 94.3(14) | 0.0(0) | 43.5(7) |
| Larceny | 147.8(19) | 153.9(22) | 309.7(46) | 179.6(28) | 198.9(32) |
| Motor vehicle theft | 70.0(9) | 21.0(3) | 13.5(2) | 0.0(0) | 37.3(6) |
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: Norwalk's rate placed against all FBI-reporting U.S. cities with population ≥ 25,000. 1 = safest.
- State decile: Same calculation restricted to Iowa 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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