Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest and crime counts are the ones each agency reported to the FBI, as the FBI held them on October 8, 2026. Every office link was opened and checked against the office's own site between September 23, 2026 and October 2, 2026.
Marin County, California, has about 256,000 residents (2024 Census Bureau estimate). A police report belongs to the agency whose officer wrote it, so which office holds a report from Marin County depends on where the incident happened: the Marin County Sheriff's Office for the unincorporated county, the agency that reports for the city inside a city. This guide names each agency, where its records page is and what the California Public Records Act requires of it.
This guide covers which agency, the sheriff's reports, the cities' reports, how many reports, what the law requires and common questions.
Related guides: Marin County public records, Marin County arrest records, Marin County warrants, Marin County inmate search, Marin County criminal records, California arrest records and California inmate search.
Which Agency Holds a Report from Marin County
The report of an incident is released by the agency that took it; the court and the jail hold their own records of the same event, but not the report.
In Marin County that is the Marin County Sheriff's Office for the unincorporated county and for any city that contracts with it for police service, and the agency that reports for a city where the city has one of its own.
The FBI's list also places the Highway Patrol's Marin Area Office in Marin County; a report taken on a state highway by it comes from that agency's own records office.
The FBI's list also carries Union Pacific Railroad in Marin County (other agency) and Marin Community College (campus police), each with a records office of its own.
Reports from the Marin County Sheriff's Office
The Marin County Sheriff's Office is the county agency; it had 79 violent and 360 property crimes reported for 2025 and reported 874 arrests for 2023.
Its reports come from its records unit, reached through the office at (415) 473-6653. The office's page SearchSystems verified is its jail page, at marinsheriff.gov/about-us/detention-bureau (page title: Detention Bureau | Marin County Sheriff), phone (415) 473-6653, which answered when SearchSystems opened it on September 23, 2026.
Reports from the City Agencies in Marin County
The eight cities the FBI lists in Marin County with a reporting agency of their own, with the police records page SearchSystems verified where the city has a guide:
- San Rafael: 218 violent and 1,219 property crimes reported for 2025; 1,661 arrests reported for 2025.
- Novato: 110 violent and 697 property crimes reported for 2025; 1,018 arrests reported for 2025. The Novato police records page is at novato.gov/government/police-department/forms, phone 415-897-4361 (verified September 25, 2026).
- Mill Valley: 7 violent and 110 property crimes reported for 2025; 111 arrests reported for 2023. The Mill Valley police department's page is at millvalleypolice.gov/m/faq, phone 415-388-4033 (verified September 25, 2026).
- Tiburon: 5 violent and 70 property crimes reported for 2025; 0 arrests reported for 2025.
- Fairfax: 6 violent and 54 property crimes reported for 2025; 77 arrests reported for 2025. The Fairfax police records page is at townoffairfaxca.gov/records-obtaining-police-information, phone (415) 453-5330 (verified September 26, 2026).
- Sausalito: 4 violent and 122 property crimes reported for 2025; 74 arrests reported for 2022. The Sausalito police records page is at sausalito.gov/departments/police-department/online-forms/police-rep..., phone (415) 289-4170 (verified September 26, 2026).
- Ross: 1 violent and 25 property crimes reported for 2025; 8 arrests reported for 2025.
- Belvedere: 0 violent and 9 property crimes reported for 2025; 0 arrests reported for 2025.
A city on that list is reported separately whether the officers are the city's own or the sheriff's under contract; the FBI's list does not say which.
How Many Reports: Marin County in 2025
The ten agencies in Marin County with all twelve months of 2025 on file reported 461 violent and 3,134 property crimes to the FBI that year, each one a report taken by the agency that holds it.
Together, the seven agencies in Marin County with all twelve months of 2025 on file reported 3,134 arrests to the FBI that year, and each arrest is a report of its own.
What the California Public Records Act Requires
Under the California Public Records Act the agency must answer a request within 10 days, with up to 14 more days in unusual circumstances, and it may charge the direct cost of copying only, not staff time. The request goes to the agency that holds the report, in writing, and does not have to say why the report is wanted.
Any other county record goes through the county records request page SearchSystems verified, at marincountyca.nextrequest.com (page title: Open Public RecordsNextRequest | Modern FOIA & Public Records Request Software).
A defendant who has been charged gets the report through the case: the District Attorney, (415) 473-6450, handles discovery for pending cases.
Frequently Asked Questions
How do I get a police report in Marin County?
From the agency whose officer took it: the Marin County Sheriff's Office for its own arrests, or the agency that reports for the city where it happened. Under the California Public Records Act the answer is due within 10 days, with up to 14 more days in unusual circumstances.
How long does an agency in Marin County have to answer?
Under the California Public Records Act, within 10 days, with up to 14 more days in unusual circumstances. It may charge the direct cost of copying only, not staff time.
Who has a crash report from a state highway in Marin County?
The state agency whose officer took it; the FBI lists the Highway Patrol's Marin Area Office in Marin County.
How do I get a report from the Marin County Sheriff's Office?
From its records unit, reached through the office at (415) 473-6653. Under the California Public Records Act the answer is due within 10 days, with up to 14 more days in unusual circumstances.
Is this the official Marin 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.