Crime Grade · FBI UCR Data · 2025
Sioux City, IA Crime Grade
How Sioux City 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
9/10
vs. all U.S. cities ≥ 25,000 population
Iowa
8/10
vs. Iowa cities ≥ 10,000 population
In 2025, the violent crime rate in Sioux City, IA was 492.4 per 100,000 residents (429 incidents over a population of 87,125). That puts Sioux City Infinity% above the U.S. rate of 0.0 and 108% above the Iowa statewide rate of 236.6.
Violent crime rate, 5-year trend
Per 100,000 residents. Sioux City (red), Iowa (blue), U.S. average (gray dashed).
Sioux City 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 | 581.3(481) | 528.2(452) | 577.5(493) | 553.0(474) | 492.4(429) |
| Murder | 3.6(3) | 1.2(1) | 8.2(7) | 3.5(3) | 1.1(1) |
| Rape | 101.5(84) | 93.5(80) | 87.9(75) | 82.8(71) | 53.9(47) |
| Robbery | 62.8(52) | 73.6(63) | 93.7(80) | 94.5(81) | 59.7(52) |
| Aggravated assault | 413.3(342) | 359.9(308) | 387.7(331) | 372.2(319) | 377.6(329) |
| Property crime | 3084.0(2,552) | 3004.2(2,571) | 3595.2(3,069) | 3349.6(2,871) | 2812.1(2,450) |
| Burglary | 487.0(403) | 404.3(346) | 509.6(435) | 473.7(406) | 396.0(345) |
| Larceny | 2285.2(1,891) | 2247.0(1,923) | 2725.9(2,327) | 2557.4(2,192) | 2150.9(1,874) |
| Motor vehicle theft | 281.6(233) | 331.9(284) | 333.9(285) | 295.2(253) | 256.0(223) |
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: Sioux City'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.
Want crime data for your application?
SpotCrime's Real-Time Crime Data API delivers incident-level data, not just aggregate grades. Used by family-safety apps, real-estate platforms, executive protection teams, and government agencies.