Official signed copy of San Mateo County's Open Data Policy approved on March 7, 2013.

Santa Clara County trying to improve access to County information. The new Open Data Portal, the Santa Clara County GIS Group will provide County geographic data. Data can be downloaded as shapefiles, CSV for spreadsheets, or KML for development of GIS applications. REST API links are also available for application.

Find data published by the City of Palo Alto.

Search and browse hundreds of datasets from the City and County of San Francisco

Find open data published by Alameda County

California believes in the power of unlocking government data. We invite all to search and explore our open data portal and engage with our data to create innovative solutions. We believe the California open data portal will bring government closer to citizens and start a new shared conversation for growth and progress in our great state.

Count of the number of datasets in the open data portal

The California Health and Human Services Agency (CHHS) has launched its Open Data Portal initiative in order to increase public access to one of the State’s most valuable assets – non-confidential health and human services data. Its goals are to spark innovation, promote research and economic opportunities, engage public participation in government, increase transparency, and inform decision-making. "Open Data" describes data that are freely available, machine-readable, and formatted according to national technical standards to facilitate visibility and reuse of published data.

The Menlo Park open data portal is part of the city's ongoing commitment to enhance civic participation and local government transparency. The portal makes City datasets freely available to the public in machine-readable formats.

Count of the number of datasets in the open data portal