Reviewed and updated October 11, 2026 by the SearchSystems.net editorial team. The arrest counts are the ones each agency reported to the FBI, as the FBI held them on October 8, 2026. 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 October 11, 2026.
Minidoka County, Idaho, has about 23,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Minidoka County is held at the county jail, run by the Minidoka County Sheriff's Office, and the jail's record of each person held is a public record. This guide says where to look for someone in custody, what the jail holds and who books people into it.
This guide covers the search, the jail, who books people, state prison and common questions.
Related guides: Minidoka County public records, Minidoka County arrest records, Minidoka County warrants, Minidoka County criminal records, Minidoka County court records, Idaho arrest records and Idaho inmate search.
Finding Someone in Custody in Minidoka County
The county jail, run by the Minidoka County Sheriff's Office, holds everyone kept in custody after an arrest in Minidoka County, from every agency.
SearchSystems opened and checked the jail page of the Minidoka County Sheriff's Office at minidoka.id.us/191/Sheriff (page title: Sheriff | Minidoka County, ID), phone 208-434-2320, Monday - Thursday Closed Friday 7:30 a.m. - 5:30 p.m., which answered when SearchSystems opened it on October 11, 2026.
That page is the office's jail information page rather than a roster, so a search for a particular person goes through the office at 208-434-2320.
The Minidoka County Jail by the Numbers
On an average day in 2023 the jail held about 71 people, up from about 70 in 2019. Its rated capacity in 2023 was 79 beds, and it ran at 89 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Minidoka County has about 23,000 residents (2024 Census Bureau estimate), so the jail holds about 31 people for every 10,000 residents.
Who Books People Into the Minidoka County Jail
The Minidoka County Sheriff's Office and the agencies that report for Rupert and Heyburn make the arrests that end in a booking in Minidoka County.
The largest arrest counts reported to the FBI were Rupert's 206 for 2025, the Minidoka County Sheriff's Office's 164 for 2025 and Heyburn's 91 for 2025.
Together, the three agencies in Minidoka County with all twelve months of 2025 on file reported 461 arrests to the FBI that year. Those kept in custody were booked into the county jail; a person cited and released at the scene was not.
The counts, agency by agency and year by year, are in Minidoka County arrest records.
From the Jail to State Prison
The jail holds people awaiting trial and people serving short sentences. A person sentenced to prison in Minidoka County 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.
Frequently Asked Questions
How do I find an inmate in Minidoka County?
Ask the Minidoka County Sheriff's Office at 208-434-2320; its jail page SearchSystems verified is at minidoka.id.us/191/Sheriff.
How many people are in the Minidoka County jail?
About 71 on an average day in 2023, the latest year in the Vera Institute's jail data, against a rated capacity of 79 beds.
What is the phone number for the Minidoka County jail?
208-434-2320, the number on the page of the Minidoka County Sheriff's Office SearchSystems verified.
Where do people sentenced to prison in Minidoka County go?
To a facility of the Idaho Department of Correction; its inmate locator is at idoc.idaho.gov.
Is this the official Minidoka 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.