California County Sheriff Incidents - Marin & Sonoma

The Bay Area county sheriff's-office incident feeds - two counties in one actor, live and queryable. Marin Sheriff Reported Crimes and Sonoma Sheriff's Office Incident Data together cover ~383k incidents across the counties' unincorporated areas and sheriff-contract cities.

Data

California county public open data (Marin County + Sonoma County sheriff's office feeds). Two sources, both anonymous and both actively updated:

• Marin - ~52,800 incidents (2013-present, latest September 2026): compact crime code (THEFT / BURG RES / ASSAULT / DOM VIOL ...), an FBI-style crime class (Theft / Burglary - Residential / Assault - Other ...), incident date/time, masked street address, city/community, jurisdiction and coordinates.
• Sonoma - ~329,900 incidents (2003-present, latest September 2026): plain-language incident type (Burglary / Assault - Other / Larceny / Vandalism / Drug Offense ...), location type (residence / highway / park ...), city and intersection.

Low cost

From $0.00005 per record, down to $0.00003 at Gold

Both counties publish these as wide flat tables where one is keyed by compact crime abbreviations and the other by free-text type labels - each useful once you know what you're looking at, painful to cut across a date range or a city. We made the feeds directly queryable: pick a county, then filter by date window / city / incidentType / (Marin) incidentClass before a record returns, and groupBy (counts by city / type / class / year) comes back as clean server counts. You query two sheriff's logs that behave like a database; the cleanup stays on our side.

Every record is one flat JSON object - no PDFs, no portal pagination.

Use cases

• Claims & underwriting - what incidents happened in a community or category over a window
• Neighborhood-safety analysis - aggregate by city / type / year to see incident patterns across the two counties
• Diligence - confirm an incident by its case number

Inputs

Field	What it does
county	marin or sonoma (default sonoma)
incidentNumber	exact incident / case lookup
city	city or community
incidentType	type substring (Sonoma text / Marin code)
incidentClass	Marin FBI-style class (ignored on Sonoma)
fromDate / toDate	incident-date window
recentDays	incidents in the last N days
aggregate + groupBy	counts by city / type / class / year

Example inputs

Confirm an incident by its case number

{"county": "sonoma", "incidentNumber": "SD260915013", "maxResults": 5}

Recent incidents in one city - recentDays windows the feed to the last N days.

{"county": "sonoma", "city": "SANTA ROSA", "recentDays": 30, "maxResults": 25}

Marin burglaries - incidentClass is the Marin-only FBI-style class.

{"county": "marin", "incidentClass": "Burglary", "maxResults": 25}

Annual incident counts - aggregate=true returns one summary row per group with a count.

{"county": "sonoma", "aggregate": true, "groupBy": "year", "maxResults": 20}

Output fields

date / time / year / county / city / incidentType / incidentClass / locationType / incidentNumber / address / intersection / latitude / longitude / agency / jurisdiction.

Honesty note: both feeds are anonymous. Marin masks the street number (XX ST VINCENTS DR); Sonoma gives only an intersection (no street address) and no coordinates. Incident data supports geographic / statistical questions, not individual screening.

Example output

One incident - incidentNumber=SD260915013 returns the Sonoma record:

{
 "platform": "ca-sheriff-incidents",
 "source": "ca-sonoma-sheriff",
 "county": "Sonoma",
 "mode": "record",
 "incidentNumber": "SD260915013",
 "date": "2026-09-15",
 "time": "16:31:19",
 "year": "2026",
 "incidentType": "Larceny",
 "incidentClass": "",
 "locationType": "SINGLE FAMILY HOME",
 "city": "HESSEL",
 "address": "",
 "intersection": "Barbara Dr / Kelly Ave",
 "latitude": "",
 "longitude": "",
 "agency": "Sonoma County Sheriff's Office",
 "jurisdiction": "",
 "groupKey": "",
 "groupCount": "",
 "groupBy": ""
}

Source: Marin County open data (Sheriff Reported Crimes) + Sonoma County open data (Sheriff's Office Incident Data), public records.