Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest counts are the ones the agency reported to the FBI, through 2025. The jail figures are from the Vera Institute of Justice's Incarceration Trends data. Every office link was opened and checked against the office's own site between September 24, 2026 and September 30, 2026.
Nampa, Idaho, in Canyon County, has about 117,000 residents (2024 Census Bureau estimate), and its arrests are reported to the FBI by an agency of its own. An arrest in the city leaves the same records whoever makes it: the arresting agency's report, the record of anyone held at the county jail, and, if the Prosecuting Attorney files charges, a case in the Canyon County District Court. This guide says who keeps each one, what it costs and who may see it, with the arrest counts the agency reported.
This guide covers who makes arrests, how many arrests, booking and the jail, finding an arrest, copies and common questions.
Related guides: Nampa public records, Canyon County arrest records, Idaho arrest records and Idaho inmate search.
Who Makes Arrests in Nampa
The FBI lists Nampa with an arrest reporting agency of its own, filed as Nampa Police Department. It reported 2,622 arrests for 2025. A city is listed separately whether the officers are the city's own or the sheriff's under contract; the FBI's list does not say which.
Outside the city, the Canyon County Sheriff's Office is the county agency. It reported 1,177 arrests for 2025.
How Many Arrests Nampa Reports
The FBI publishes every agency's monthly arrest counts on the Crime Data Explorer. These are the full-year totals, all offenses, as the FBI held them on October 8, 2026; a year with months missing or not reported is left out.
- Nampa: 2,622 for 2025, 2,781 for 2024, 3,343 for 2023, 3,227 for 2022, 3,363 for 2021 and 3,177 for 2020.
Nampa's 2,622 arrests in 2025 were down 5.7 percent from 2,781 in 2024.
Across Canyon County, the five agencies with all twelve months of 2025 on file reported 4,145 arrests between them.
Booking: Where People Arrested in Nampa Are Held
The county jail is where a person arrested in Nampa and kept in custody ends up, whichever agency made the arrest, though a city department may hold someone in its own cells first and a person cited and released at the scene is never booked. The jail's record of each person held, with the charges, is a public record of the arrest, and once the person is released or sentenced the record continues in the court file.
On an average day in 2023 the jail held about 430 people, up from about 420 in 2019. Its rated capacity in 2023 was 525 beds, and it ran at 82 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
SearchSystems opened and checked the custody page of the Canyon County Sheriff's Office at jailroster.canyoncounty.id.gov (page title: Jail Roster), phone (208) 454-7541, which answered when SearchSystems opened it on September 30, 2026.
That page is the place to look for someone who was booked recently; a person cited and released at the scene, or held only a few hours by a city department, will not be on it.
A person sentenced to prison serves the sentence in a facility of the Idaho Department of Correction, whose inmate locator is at idoc.idaho.gov/content/prisons/resident-client-search.
How to Find Out About an Arrest in Nampa
An arrest in Nampa can be traced in three places, depending on where the case stands: the custody page of the Canyon County Sheriff's Office described above, for anyone booked into the county jail; the case index of the Canyon County District Court, which shows whether charges were filed and the next court date (the court records page SearchSystems verified is at canyoncounty.id.gov/court-records-request, phone 208-454-7495); the Prosecuting Attorney, which decides whether an arrest becomes a charge (its page is at canyoncounty.id.gov/elected-officials/prosecuting-attorney, phone 208-454-7391).
Statewide, iCourt Portal is the Idaho courts' free statewide case search.
Idaho is one of the states that lets anyone look up another person's statewide criminal history: name-based conviction checks are open to the public, through the Idaho State Police Bureau of Criminal Identification. That record shows what agencies reported to the state, which is wider than one county's court index but can lag it.
Getting a Copy of an Arrest Record in Nampa
The report of an arrest is released by the agency that made it; the jail and the court hold their own records of the same event, but not the report. Under the Idaho Public Records Act the agency must answer within 3 working days, or 10 when more time is needed, and it may charge copying after the first 100 pages and labor after the first two hours.
- An arrest by the Nampa police: the police records page SearchSystems verified at cityofnampa.us/605/Records (page title: Records | Nampa, ID), Monday through Friday from 8:00am to 6:00pm., which answered when SearchSystems opened it on September 26, 2026.
- An arrest by the Canyon County Sheriff's Office: ask its records unit, reached through the office at (208) 454-7541.
- A defendant who has been charged gets the report through the case: the Prosecuting Attorney, 208-454-7391, handles discovery for pending cases.
- The court file of a case that was filed: the Canyon County District Court, through the court records page at canyoncounty.id.gov/court-records-request, phone 208-454-7495.
- Any county record that is not posted: the county records request page SearchSystems verified is at canyoncounty.id.gov/public-records-request (page title: Public Records Request | Canyon County).
- Your own statewide record: a fingerprint-based request to the Bureau of Criminal Identification.
The Canyon County guide covers every agency in the county: Canyon County arrest records.
Frequently Asked Questions
How many arrests are made in Nampa each year?
Nampa reported 2,622 arrests to the FBI for 2025, its latest full year.
How do I find out if someone is in jail in Nampa?
Look on the custody page of the Canyon County Sheriff's Office at jailroster.canyoncounty.id.gov, or call (208) 454-7541. It covers people booked into the county jail.
Where are people arrested in Nampa booked?
Those kept in custody go to the county jail, run by the Canyon County Sheriff's Office; a person cited and released at the scene is not booked.
Are arrest records public in Nampa?
The court files of criminal cases are public, and so is the statewide criminal history kept by the Idaho State Police Bureau of Criminal Identification: name-based conviction checks are open to the public. The arrest report itself is released by the agency that made the arrest, under the Idaho Public Records Act.
How do I get a copy of an arrest report in Nampa?
From the agency that made the arrest: the Nampa police for its own arrests, the Canyon County Sheriff's Office for the sheriff's. Under the Idaho Public Records Act the answer is due within 3 working days, or 10 when more time is needed; the county records request page SearchSystems verified is at canyoncounty.id.gov/public-records-request.
Is this the official Nampa website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official city, county, court and state offices described above and does not hold records, charge for them or take requests.