Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest and crime counts are the ones each agency reported to the FBI, as the FBI held them on October 8, 2026. Every office link was opened and checked against the office's own site between September 24, 2026 and September 30, 2026.
Ada County, Idaho, has about 536,000 residents (2024 Census Bureau estimate). In Idaho the public criminal record is the court file, kept by the Clerk of the District Court; the statewide criminal history kept by the Idaho State Police Bureau of Criminal Identification is open to anyone who asks. This guide says where each record of a criminal case from Ada County is kept and how it is seen.
This guide covers the court file, the statewide record, local arrest records, the crimes behind the records, the prosecutor, sex offender registry, records requests and common questions.
Related guides: Ada County public records, Ada County arrest records, Ada County warrants, Ada County inmate search, Ada County court records, Idaho arrest records and Idaho inmate search.
Criminal Cases in the Ada County District Court
A criminal case from Ada County is filed in the Ada County District Court or the Magistrate Division, which takes misdemeanors, traffic cases, small claims, probate and divorces, and the court file, kept by the Clerk of the District Court, is the record of it that the public may see.
For Ada County, SearchSystems opened and checked the court records page for the county at adacounty.id.gov/clerk/courts (page title: Courts | Ada County Clerk), phone 208-287-6900, 200 W Front St Boise ID 83702, Monday through Friday 8 a.m. to 5 p.m., which answered when SearchSystems opened it on September 24, 2026.
Statewide, iCourt Portal is the Idaho courts' free statewide case search.
The Idaho Criminal History and Your Own Copy
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. The result is the repository record, what agencies reported to the state, which is wider than one county's court index but can lag it.
To see your own record, the route is a fingerprint-based request to the Bureau of Criminal Identification. The state page SearchSystems verified for it is at isp.idaho.gov/bci/criminal-history.
Arrest Records Kept Locally in Ada County
The Ada County Sheriff's Office and the agencies that report for Boise City, Meridian and Garden City keep the arrest records in Ada County: the report and the booking record of each arrest stay with the agency that made it, separate from the court file and from the state repository.
Together, the four agencies in Ada County with all twelve months of 2025 on file reported 9,391 arrests to the FBI that year; how each case ended is in the court file, not in the arresting agency's.
The agencies and their counts, year by year, are in Ada County arrest records.
The Crimes Behind the Records: Ada County in 2025
The four agencies in Ada County with all twelve months of 2025 on file reported 1,170 violent and 3,238 property crimes to the FBI that year; the same agencies with both 2025 and 2024 complete reported 4,408 crimes in 2025 against 5,463 in 2024. Each reported crime is a report on file with the agency that took it, and each arrest that follows is the start of a criminal record.
The full crime section, agency by agency, is on the Ada County public records guide.
The Prosecuting Attorney for Ada County
Charges in Ada County are filed by the Prosecuting Attorney, which reviews the arrests of every agency in the county and brings the cases in the Ada County District Court or the Magistrate Division.
The office's page SearchSystems verified is at adacounty.id.gov/prosecutor/about-us/meet-the-prosecutor (page title: Meet the Prosecutor | Ada County Prosecutor), phone 208-287-7700, which answered when SearchSystems opened it on September 30, 2026.
The Sex Offender Registry for Ada County
Registered sex offenders living in Ada County are listed on the Idaho Sex Offender Registry, run by the Idaho State Police at apps.isp.idaho.gov/sor_id/search_regnam.html. The registry is public and can be searched online.
Registration itself is done in person with the local agency where the registrant lives: the sheriff's office, or the city police in a city with its own department.
Asking an Agency in Ada County for a Record
An arrest report, a booking record or a local criminal history letter comes from the agency that holds it, not from the court.
Under the Idaho Public Records Act a county office must answer a request 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. The county records request page SearchSystems verified is at adacounty.id.gov/about-ada-county/public-records-request (page title: Public Records Request | Ada County).
Frequently Asked Questions
Are criminal records public in Ada County?
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.
Can I search Ada County criminal cases online?
The court records page SearchSystems verified for the county is at adacounty.id.gov/clerk/courts (page title: Courts | Ada County Clerk). Statewide, iCourt Portal is the Idaho courts' free statewide case search.
How do I get my own Idaho criminal history?
Through a fingerprint-based request to the Bureau of Criminal Identification.
Who prosecutes crimes in Ada County?
The Prosecuting Attorney, reached at 208-287-7700, which files its cases in the Ada County District Court or the Magistrate Division.
Is this the official Ada County website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official county, court and state offices described above and does not hold records, charge for them or take requests.