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 September 26, 2026.
Sebastopol, California, in Sonoma County, has about 7,400 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Sebastopol is held at the county jail, run by the Sonoma 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: Sebastopol public records, Sonoma County inmate search, Sebastopol arrest records, Sebastopol warrants, Sebastopol criminal records, Sebastopol court records, California arrest records and California inmate search.
Finding Someone in Custody in Sebastopol
A person kept in custody after an arrest in Sebastopol is held at the county jail, run by the Sonoma County Sheriff's Office, whichever agency made the arrest.
SearchSystems opened and checked the jail page of the Sonoma County Sheriff's Office at sonomasheriff.org/reports-and-statistics (page title: Reports and Statistics | Sonoma County Sheriff's Office), which answered when SearchSystems opened it on September 23, 2026.
That page is the office's jail information page rather than a roster.
The Sonoma County Jail by the Numbers
On an average day in 2025 the jail held about 680 people, down from about 1,040 in 2019. Its rated capacity in 2023, the last year with a capacity figure, was 912 beds, and it ran at 80 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Sonoma County has about 485,000 residents (2024 Census Bureau estimate), so the jail holds about 14 people for every 10,000 residents.
Who Books People Into the Sonoma County Jail
The Sonoma County Sheriff's Office and the agency that reports for Sebastopol (filed by the FBI as Sebastopol Police Department) make the arrests that end in a booking in and around Sebastopol.
The FBI's agency list also places three state agencies, two campus police departments, one other agency and one state police unit in Sonoma County (the arrest records guide names each one).
The largest arrest counts reported to the FBI were Santa Rosa's 5,763 for 2025, the Sonoma County Sheriff's Office's 2,447 for 2025 and Petaluma's 1,171 for 2025.
Together, the ten agencies in Sonoma County with all twelve months of 2025 on file reported 12,405 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 Sebastopol 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 Sebastopol?
Ask the Sonoma County Sheriff's Office; its jail page SearchSystems verified is at sonomasheriff.org/reports-and-statistics.
How many people are in the Sonoma County jail?
About 680 on an average day in 2025, the latest year in the Vera Institute's jail data, against a rated capacity of 912 beds.
Where do people sentenced to prison in Sonoma 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 Sebastopol 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.