Crime Grade · FBI UCR Data · 2025
Nampa, ID Crime Grade
How Nampa grades for violent crime against every other reporting U.S. city — and against the rest of Idaho — based on the FBI's Uniform Crime Reporting data.
National
8/10
vs. all U.S. cities ≥ 25,000 population
Idaho
8/10
vs. Idaho cities ≥ 10,000 population
In 2025, the violent crime rate in Nampa, ID was 309.7 per 100,000 residents (377 incidents over a population of 121,713). That puts Nampa Infinity% above the U.S. rate of 0.0 and 41% above the Idaho statewide rate of 220.4.
That ranks Nampa #2,683 of 3,771 ranked U.S. cities, safer than 29% of them, and #16 of 21 in Idaho. Violent crime is down 16% year over year and down 12% over the last five years.
Nampa, ID crime — key facts
- National Crime Grade
- D (8/10)
- Idaho Grade
- D (8/10)
- Violent crime rate
- 309.7 / 100k
- National rank
- #2,683 of 3,771
- ID rank
- #16 of 21
- Safer than
- 29% of U.S. cities
- Year over year
- down 16%
- 5-year change
- down 12%
- Population
- 121,713
- Reporting agency
- Nampa Police Department
- Data year
- 2025 · FBI UCR
Reported by Nampa Police Department (FBI ORI ID0140200) to the FBI Uniform Crime Reporting Program. Download the full dataset (CSV) · methodology.
About Nampa, ID
Also known as
- New Jerusalem
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. Nampa (red), Idaho (blue), U.S. average (gray dashed).
Nampa 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 | 350.3(370) | 357.8(399) | 383.2(445) | 367.4(437) | 309.7(377) |
| Murder | 1.9(2) | 4.5(5) | 3.4(4) | 2.5(3) | 0.8(1) |
| Rape | 113.6(120) | 97.8(109) | 87.0(101) | 84.1(100) | 71.5(87) |
| Robbery | 11.4(12) | 9.9(11) | 16.4(19) | 15.1(18) | 9.0(11) |
| Aggravated assault | 223.4(236) | 245.7(274) | 276.4(321) | 265.7(316) | 228.4(278) |
| Property crime | 1487.4(1,571) | 1300.4(1,450) | 876.7(1,018) | 763.3(908) | 674.5(821) |
| Burglary | 194.1(205) | 129.1(144) | 124.9(145) | 149.6(178) | 75.6(92) |
| Larceny | 1130.5(1,194) | 1025.1(1,143) | 660.5(767) | 525.4(625) | 523.4(637) |
| Motor vehicle theft | 150.5(159) | 137.2(153) | 88.7(103) | 82.4(98) | 70.7(86) |
How the Crime Grade is calculated
- What is the source of the Nampa, ID 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 Nampa 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 Nampa calculated?
- Nampa's rate placed against all FBI-reporting U.S. cities with population ≥ 25,000. 1 = safest.
- How is the Idaho state decile calculated?
- Same calculation restricted to Idaho 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 Nampa 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 Idaho
Comparable Idaho cities by population.
Compare Nampa to other places
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