Boundaries of areas in San Mateo County based on water sources. Includes areas served and water suppliers.

Land boundary of San Mateo County.

Demographic data for San Mateo County's residents by Census Tract. Includes population, race, Hispanic ethnicity, gender, age groups, household, family, and housing information. This data is from the 2010 United States Census Summary File 1 (SF1).

Land use type boundaries in San Mateo County. Includes information on landuse density, landuse type, area, and narrative description. This data includes areas in the County's planning jurisdiction. Areas within city jurisdictions are excluded.

San Mateo County bus route network created from samTrans General Transit Feed Specification (GTFS) data

Beaches, open spaces, and parks administered by San Mateo County.

Parcels that are regulated under the Williamson Act. The purposes of the Land Conservation Act (Williamson Act) are to preserve the County’s prime soils and intensive high value agricultural operations, and to discourage premature and unnecessary conversion of agricultural land to urban use.

Caltrain heavy rail network created from the Caltrain General Transit Feed Specification (GTFS) data

San Mateo County bus stop locations created from samTrans General Transit Feed Specification (GTFS) data

Boundaries for the five Supervisor Districts in San Mateo County. This data contains boundaries that extend into the San Francisco Bay and the Pacific Ocean. Demographic data from the 2010 United States Census Summary File 1 (SF1) is included.