Crime Grade · FBI UCR Data · 2025
Spencer, IA Crime Grade
How Spencer 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
3/10
vs. all U.S. cities ≥ 25,000 population
Iowa
3/10
vs. Iowa cities ≥ 10,000 population
In 2025, the violent crime rate in Spencer, IA was 96.1 per 100,000 residents (11 incidents over a population of 11,447). That puts Spencer 70% below the U.S. rate of 325.3 and 59% below the Iowa statewide rate of 236.6.
That ranks Spencer #1,087 of 3,771 ranked U.S. cities, safer than 71% of them, and #10 of 40 in Iowa. Violent crime is up 58% year over year and down 12% over the last five years.
Spencer, IA crime — key facts
- National Crime Grade
- A (3/10)
- Iowa Grade
- A (3/10)
- Violent crime rate
- 96.1 / 100k
- National rank
- #1,087 of 3,771
- IA rank
- #10 of 40
- Safer than
- 71% of U.S. cities
- Year over year
- up 58%
- 5-year change
- down 12%
- Population
- 11,447
- Reporting agency
- Spencer Police Department
- Data year
- 2025 · FBI UCR
Reported by Spencer Police Department (FBI ORI IA0210100) to the FBI Uniform Crime Reporting Program. Download the full dataset (CSV) · methodology.
Violent crime rate, 5-year trend
Per 100,000 residents. Spencer (red), Iowa (blue), U.S. average (gray dashed).
Spencer 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 | 109.4(12) | 122.4(14) | 95.9(11) | 60.9(7) | 96.1(11) |
| Murder | 0.0(0) | 0.0(0) | 0.0(0) | 0.0(0) | 8.7(1) |
| Rape | 91.2(10) | 78.7(9) | 69.8(8) | 34.8(4) | 52.4(6) |
| Robbery | 9.1(1) | 0.0(0) | 0.0(0) | 17.4(2) | 0.0(0) |
| Aggravated assault | 9.1(1) | 43.7(5) | 26.2(3) | 8.7(1) | 34.9(4) |
| Property crime | 1285.8(141) | 1005.2(115) | 1177.2(135) | 1017.3(117) | 864.9(99) |
| Burglary | 264.5(29) | 209.8(24) | 113.4(13) | 95.6(11) | 96.1(11) |
| Larceny | 975.7(107) | 751.7(86) | 1037.7(119) | 913.0(105) | 760.0(87) |
| Motor vehicle theft | 45.6(5) | 43.7(5) | 26.2(3) | 0.0(0) | 8.7(1) |
How the Crime Grade is calculated
- What is the source of the Spencer, 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 Spencer 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 Spencer calculated?
- Spencer'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 Spencer 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 Spencer to other places
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