Reviewed and updated October 9, 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 September 30, 2026.
Millard County, Utah, has about 14,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Millard County is held at the county jail, run by the Millard 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: Millard County public records, Millard County arrest records, Millard County warrants, Millard County criminal records, Millard County court records, Utah arrest records and Utah inmate search.
Finding Someone in Custody in Millard County
A person kept in custody after an arrest in Millard County is held at the county jail, run by the Millard County Sheriff's Office, whichever agency made the arrest.
SearchSystems opened and checked the jail page of the Millard County Sheriff's Office at millardcounty.gov/your-government/elected-officials/sheriffs-office (page title: County Sheriff | Millard County), phone 435-743-5302, 765 South Highway 99 Fillmore, UT 84631, which answered when SearchSystems opened it on September 24, 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 435-743-5302.
The Millard County Jail by the Numbers
On an average day in 2019 the jail held about 70 people. Its rated capacity in 2019 was 107 beds, and it ran at 65 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Millard County has about 14,000 residents (2024 Census Bureau estimate), so the jail holds about 52 people for every 10,000 residents.
Who Books People Into the Millard County Jail
The Millard County Sheriff's Office makes the arrests that end in a booking in Millard County.
The Millard County Sheriff's Office reported 250 arrests to the FBI for 2025. 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 Millard 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 Millard County serves the sentence in a facility of the Utah Department of Corrections, whose inmate locator is at corrections.utah.gov/inmate-services/offender-search.
Frequently Asked Questions
How do I find an inmate in Millard County?
Ask the Millard County Sheriff's Office at 435-743-5302; its jail page SearchSystems verified is at millardcounty.gov.
How many people are in the Millard County jail?
About 70 on an average day in 2019, the latest year in the Vera Institute's jail data, against a rated capacity of 107 beds.
What is the phone number for the Millard County jail?
435-743-5302, the number on the page of the Millard County Sheriff's Office SearchSystems verified.
Where do people sentenced to prison in Millard County go?
To a facility of the Utah Department of Corrections; its inmate locator is at corrections.utah.gov.
Is this the official Millard 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.