Marin County Open Data

Welcome to the Open Data Portal of Marin County. Explore open access to our data and visualizations here, as we continue to add more datasets and improve County data transparency.

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County Government

Browse Marin County Government data.

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Public Health

Browse Marin County Public Health data.

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Public Safety

Browse Marin County Public Safety data.

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View Catalog

Search Marin County open data in different ways.

Ranger-Reported Incidents

Ranger-reported citations and warnings at parks and preserves

Unclaimed Checks

Unclaimed checks including payees and dollar amounts

County Sheriff Reported Crimes

Reported crimes including crime types and approximate addresses

Open Data Network

Socrata's searchable Open Data Network

Food Facility Health Inspections

Map of food facilities and health inspection results

Emergency Medical Service Bicycle Accident Incidents

EMS dispatches for bicycle accidents

Beach Water Quality Samples

Weekly beach water quality samples taken April through October

Marin County Demographics

Statistics including population, employees and incomes