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 26, 2026.
Pendleton, Oregon, in Umatilla County, has about 17,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Pendleton is held at the county jail, run by the Umatilla 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: Pendleton public records, Umatilla County inmate search, Pendleton arrest records, Pendleton warrants, Pendleton criminal records, Pendleton court records, Oregon arrest records and Oregon inmate search.
Finding Someone in Custody in Pendleton
The county jail, run by the Umatilla County Sheriff's Office, holds everyone kept in custody after an arrest in Pendleton, from every agency.
SearchSystems opened and checked the jail page of the Umatilla County Sheriff's Office at co.umatilla.or.us/departments/sheriffs-office (page title: Sheriff's Office | Umatilla County), phone 541-966-3600, 4700 NW Pioneer Place Pendleton, OR 97801, 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 541-966-3600.
The Umatilla County Jail by the Numbers
On an average day in 2023 the jail held about 120 people, down from about 180 in 2019. Its rated capacity in 2019, the last year with a capacity figure, was 174 beds, and it ran at 105 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Umatilla County has about 80,000 residents (2024 Census Bureau estimate), so the jail holds about 15 people for every 10,000 residents.
Who Books People Into the Umatilla County Jail
The Umatilla County Sheriff's Office and the agency that reports for Pendleton (filed by the FBI as Pendleton Police Department) make the arrests that end in a booking in and around Pendleton.
The FBI's agency list also places these agencies in Umatilla County: the Umatilla County Liquor Commission (state agency); the Umatilla County State Police (state police).
The largest arrest counts reported to the FBI were Hermiston's 1,353 for 2025, Pendleton's 1,314 for 2025 and the Umatilla County Sheriff's Office's 237 for 2025.
Together, the five agencies in Umatilla County with all twelve months of 2025 on file reported 3,235 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 Pendleton 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 Umatilla County serves the sentence in a facility of the Oregon Department of Corrections, whose inmate locator is at oregon.gov/doc/victim-services/pages/offender-search.aspx.
Frequently Asked Questions
How do I find an inmate in Pendleton?
Ask the Umatilla County Sheriff's Office at 541-966-3600; its jail page SearchSystems verified is at co.umatilla.or.us/departments/sheriffs-office.
How many people are in the Umatilla County jail?
About 120 on an average day in 2023, the latest year in the Vera Institute's jail data, against a rated capacity of 174 beds.
What is the phone number for the Umatilla County jail?
541-966-3600, the number on the page of the Umatilla County Sheriff's Office SearchSystems verified.
Where do people sentenced to prison in Umatilla County go?
To a facility of the Oregon Department of Corrections; its inmate locator is at oregon.gov.
Is this the official Pendleton 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.