Crime in Nampa, Idaho
Major crime in Nampa is 52% below the U.S. rate per resident: 6% lower for persons crimes and 62% lower for property crimes. Expected major crimes are down 7.5% from a year earlier.
Modeled estimates per resident, not counts of incidents. How we calculated this
Index: crimes per resident compared with the U.S., where 100 is the U.S. rate and 200 is twice it.
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Drugs and alcohol and rape / sexual assault stand out most, at about 2.2 times the U.S. rate
Expected crimes per year in Nampa for each type, and the index against the U.S. rate per resident.
Citywide indexWhere the middle half of residents live
Property crimes
Social disorder
How crime varies across Nampa
The middle half of Nampa residents live in neighborhoods with a major-crime index between 22 and 58; the typical (median) resident's is 29. The citywide figure (48) is higher than that because crime concentrates in a smaller set of areas.
- 0–5070.7%
- 50–10022.0%
- 100–2003.4%
- 200–4004.0%
- 400+0.0%
Share of residents by the index of their census block group, a neighborhood of roughly 600 to 3,000 people.
Highest on Friday and Saturday nights
Major-crime index by time of week, against the U.S. rate for the same hours.
Major crime fell 7.5% in a year; across Idaho it fell 7.2%
Change in expected crimes, with Idaho as a whole in gray. The past year uses the reporting agencies' year-to-date FBI data; 2031 is the model's projection.
Nampa against U.S. places with 100,000 to 250,000 residents
250 of the 268 other places of this size have a higher major-crime index than Nampa; the middle of the group is 109. The 9 nearest in population:
Major-crime index per resident, U.S. = 100; residents in gray.
Nampa has a higher major-crime index than 5 of its 8 nearest neighbors
The 8 nearest cities and towns we cover, by major-crime index. The closest, Caldwell (6 mi), is 22% above Nampa's rate.
Major-crime index per resident, U.S. = 100; distances between where residents live, in miles.
Questions about crime in Nampa
What are the most common crimes in Nampa?
By expected count, the most common persons and property crimes are aggravated assault (about 269 a year), other larceny (about 227 a year) and theft from vehicle (about 203 a year). Compared with the U.S., drugs and alcohol stands out most: 2.2 times the U.S. rate per resident.
How we calculated this
Each police agency's crimes, as reported to the FBI, are spread across the census block groups it serves using population, jobs, points of interest and, where available, local incident records. Nampa's figures add up its 63 block groups. The index compares crimes per resident with the U.S. rate.
- Nampa's published incident records inform the estimate for every neighborhood.
- 7.1% of residents live in block groups whose estimate has high confidence (80% interval within about 5x).
- Rates are per resident, so places where many people work or visit but few live, such as downtowns, airports and stadiums, can read high.
- Disorderly conduct and trespassing are modeled, because the FBI records them only through arrests.
- Residents: 127,048. Model updated Oct 20, 2026. Release 2026-2026-10-20-2
Full method and validation·Data sources
CrimeMetric. "Crime in Nampa, Idaho." Vorp Labs, model updated Oct 20, 2026. https://crimemetric.com/id/nampa
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Major-crime index, U.S. = 100
- Caldwell6 mi59
- Kuna9 mi25
- Meridian9 mi32
- Middleton10 mi37
- Eagle13 mi28
- Garden City16 mi88
- Boise City17 mi58
- Emmett21 mi46