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Sonoma County, California Public Records

Find the right office in Sonoma County. Court cases, deeds and parcels, sheriff and jail records, vital records and county filings, each linked to the office that keeps them, with addresses and phone numbers.

Official sources first Free directory Links checked Sep. 13, 2026 Mobile friendly
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About public records in Sonoma County

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County profile

Sonoma County at a glance

State
California
County seat
Santa Rosa
Population
488,116
Area
1,576 sq mi
Founded
1850
Cities and towns
34

Sonoma County offices and records

Sheriff & Law Enforcement. Sonoma County Sheriff's Office is responsible for law enforcement services in the unincorporated areas of Sonoma County, as well as managing Sonoma County jail.

Police Departments. In addition to Sonoma County Sheriff's Office, several municipal police departments operate within Sonoma County. Each department serves its respective city, handling local law enforcement and collaborating with the Sheriff's Office on major investigations and regional crime issues.

Law Enforcement & Arrests. Sonoma County Sheriff's Office, headquartered at 2796 Ventura Avenue, Santa Rosa, CA 95403 (phone: 707-565-2650, website: sonomasheriff.org), provides law enforcement services to unincorporated areas and contracts with several cities including Sonoma, Windsor, and Cloverdale. Municipal police departments operate independently in Santa Rosa (Santa Rosa Police Department, 965 Sonoma Avenue), Petaluma (Petaluma Police Department, 969 Petaluma Boulevard North), Rohnert Park, Healdsburg, Sebastopol, and Cotati. Arrest records and booking logs are public records under the California Public Records Act (Government Code Section 6254(f)), which specifically identifies arrest logs as disclosable public information.

Criminal Records. Sonoma County Superior Court manages court records, while the Sheriff's Office maintains arrest and booking records.

Arrest Records. Arrest records in Sonoma County are maintained by Sonoma County Sheriff's Office and local police departments.

Jail & Inmate Records. Inmates can be located through an online inmate lookup tool provided by the Sheriff's Office.

Mugshots & Booking Photos. Mugshots in Sonoma County are taken and retained by Sonoma County Sheriff's Office during the booking process. These images are part of the arrest record and can be accessed through the Sheriff's Office or court records, depending on the case status.

Business license requirements in Sonoma County vary by city and by unincorporated area jurisdiction. Sonoma County of Sonoma Permit and Resource Management Department (PRMD) at 2550 Ventura Avenue, Santa Rosa, CA 95403 (phone: 707-565-1900) handles business registration and permits for unincorporated areas. Sonoma County Tax Collector (phone: 707-565-2281) handles property tax payments and delinquency records. Sonoma County Recorder-Clerk-Assessor's Office, located at 585 Fiscal Drive, Santa Rosa, CA 95403 (phone: 707-565-2651, website: sonomacounty.ca.gov/recorder-clerk-assessor), maintains property and land records for the entire county as the official custodian of recorded documents. The Superior Court of California, County of Sonoma, is the trial court of general jurisdiction handling all criminal, civil, family, probate, juvenile, and traffic matters in Sonoma County. The main courthouse is located at the Hall of Justice, 600 Administration Drive, Santa Rosa, CA 95403 (phone: 707-565-2937, website: Sonoma County.courts.ca.gov). For vital records occurring outside Sonoma County or for expedited statewide searches, applicants may contact the California Department of Public Health, Vital Records Office in Sacramento (phone: 916-445-2684, website: cdph.ca.gov/programs/chsi/pages/vital records.aspx).

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Sonoma County public-records FAQs

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Where can I find mugshots or booking photos in Sonoma County, California?

Mugshots or booking photos in Sonoma County can be obtained from the Sonoma County Sheriff's Office. While the Sheriff's Office does not provide an online portal for public access to mugshots, you can request this information directly from their office. For official requests, you may need to visit the Sheriff's Office in person or contact them for further instructions.

How do I get a criminal background check in Sonoma County, California?

To obtain a criminal background check in Sonoma County, you should contact the California Department of Justice (DOJ). Locally, you can initiate the process through the Sonoma County Sheriff's Office, which may require fingerprinting. The DOJ provides background checks under the California Penal Code Sections 11105 and 13300, and you can find more information on their website.

How can I look up sex offenders in Sonoma County, California?

You can look up sex offenders in Sonoma County by using the California Megan's Law website, which is managed by the California Department of Justice. This online registry provides information about registered sex offenders throughout the state, including those residing in Sonoma County. The website allows you to search by name, address, or proximity to a specific location.

How do I register to vote in Sonoma County, California?

Register to vote online at registertovote.ca.gov, California's official voter registration portal, or submit a paper application to the Sonoma County Registrar of Voters at 435 Fiscal Drive, Santa Rosa, CA 95403 (phone: 707-565-6800, website: vote.sonoma.ca.gov). The registration deadline is 15 days before any election, though California's conditional voter registration allows eligible voters to register and vote provisionally through Election Day at the Registrar's office or vote centers. Once registered, you will automatically receive a vote-by-mail ballot for every election, and you can track your ballot status online through the state's "Where's My Ballot?" system.

How do I look up property records in Sonoma County, California?

Access property records online through the Sonoma County Recorder-Clerk-Assessor's Office website at sonomacounty.ca.gov/recorder-clerk-assessor, which offers free online searching of recorded documents from 1972 to present including deeds, mortgages, liens, and subdivision maps. The Property Information System provides assessor data, ownership information, assessed values, and property tax details searchable by address or Assessor's Parcel Number. For detailed maps, zoning, and environmental information, use the county's GIS portal at sonomacounty.ca.gov/prmd/Rosa. Certified copies of documents can be ordered online or in person at 585 Fiscal Drive, Santa Rosa, for $1 first page and $0.50 per additional page plus $5 certification fee.

How do I get a birth or death certificate in Sonoma County, California?

Birth and death certificates for events occurring in Sonoma County are available from the Sonoma County Recorder-Clerk-Assessor's Office, Clerk Division, at 585 Fiscal Drive, Santa Rosa, CA 95403 (phone: 707-565-2667). Birth certificates cost $29 for the first certified copy; death certificates cost $21 for the first copy. In-person requests are processed immediately if records are available; mail requests take 3-4 weeks. Online ordering is available through the county website or VitalChek.com with additional service fees, requiring valid photo ID and proof of relationship or legal entitlement under California Health and Safety Code Section 103526.

How do I find business license records in Sonoma County, California?

Business licenses in Sonoma County are issued by individual cities for businesses operating within city limits, and by the County Permit and Resource Management Department (707) 565-1900) for unincorporated areas. Fictitious Business Name Statements (DBAs) are filed with the Sonoma County Clerk at 585 Fiscal Drive, Santa Rosa, and are public records searchable in person or by written request. For corporations, LLCs, and other registered entities, use the free California Secretary of State business search at bizfilesonline.sos.ca.gov to verify business registration status, agents for service of process, and entity status. Local chambers of commerce and city finance departments can provide information about specific business licensing requirements for each jurisdiction.