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 23, 2026 and October 2, 2026.
Placer County, California, has about 434,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Placer County is held at the county jail, run by the Placer 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: Placer County public records, Placer County arrest records, Placer County warrants, Placer County police reports, Placer County property records, California arrest records and California inmate search.
Finding Someone in Custody in Placer County
The county jail, run by the Placer County Sheriff's Office, holds everyone kept in custody after an arrest in Placer County, from every agency.
SearchSystems opened and checked the jail page of the Placer County Sheriff's Office at placer.ca.gov/7994/Press-Log---Arrests (page title: Press Log | Arrests | Placer County, CA), a site that blocks automated checks (HTTP 429), so open it in a browser.
That page is the office's jail information page rather than a roster.
The Placer County Jail by the Numbers
On an average day in 2025 the jail held about 800 people, up from about 700 in 2019. Its rated capacity in 2017, the last year with a capacity figure, was 803 beds, and it ran at 91 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Placer County has about 434,000 residents (2024 Census Bureau estimate), so the jail holds about 18 people for every 10,000 residents.
Who Books People Into the Placer County Jail
The Placer County Sheriff's Office and the agencies that report for Roseville, Rocklin, Lincoln and Auburn make the arrests that end in a booking in Placer County.
The FBI's agency list also places one other agency, two state agencies and two state police units in Placer County (the arrest records guide names each one).
The largest arrest counts reported to the FBI were the Placer County Sheriff's Office's 3,583 for 2025, Roseville's 2,807 for 2025 and Rocklin's 891 for 2025.
Together, the five agencies in Placer County with all twelve months of 2025 on file reported 8,282 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 Placer County arrest records.
From the Jail to State Prison
A sentence of more than a year is served in state prison, not the jail; the California Department of Corrections and Rehabilitation lists its inmates at cdcr.ca.gov/search.
Frequently Asked Questions
How do I find an inmate in Placer County?
Ask the Placer County Sheriff's Office; its jail page SearchSystems verified is at placer.ca.gov/7994/Press-Log---Arrests.
How many people are in the Placer County jail?
About 800 on an average day in 2025, the latest year in the Vera Institute's jail data, against a rated capacity of 803 beds.
Where do people sentenced to prison in Placer County go?
To a facility of the California Department of Corrections and Rehabilitation; its inmate locator is at cdcr.ca.gov/search.
Is this the official Placer 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.