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.
Mill Valley, California, in Marin County, has about 14,000 residents (2024 Census Bureau estimate). A police report belongs to the agency whose officer wrote it, so which office holds a report from Mill Valley depends on where the incident happened. 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 city's records page, the sheriff's reports, what the law requires and common questions.
Related guides: Mill Valley public records, Marin County police reports, Mill Valley arrest records, Mill Valley warrants, Mill Valley inmate search, Mill Valley criminal records, California arrest records and California inmate search.
Which Agency Holds a Report from Mill Valley
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.
Inside Mill Valley that is the agency that reports to the FBI for the city (filed by the FBI as Mill Valley Police Department); outside it, the Marin County Sheriff's Office.
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 Mill Valley Police
For Mill Valley, SearchSystems opened and checked the Mill Valley police department's page at millvalleypolice.gov/m/faq (page title: FAQs | CivicPlus.CMS.FAQ), phone 415-388-4033, 26 Corte Madera Avenue Mill Valley, CA 94941, Monday through Friday 9 am to 5 pm, which answered when SearchSystems opened it on September 25, 2026.
The agency that reports for Mill Valley had 7 violent and 110 property crimes reported for 2025 and reported 111 arrests for 2023.
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.
What the California Public Records Act Requires
The California Public Records Act sets the rules: an answer within 10 days, with up to 14 more days in unusual circumstances, at a charge of the direct cost of copying only, not staff time, from the agency that holds the report.
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 Mill Valley?
From the agency that took it. The Mill Valley police department's page is at millvalleypolice.gov/m/faq, phone 415-388-4033; the sheriff's reports come from the Marin County Sheriff's Office.
How long does an agency in Mill Valley 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 Mill Valley?
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 Mill Valley 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.