San Mateo County, CA election data

A geography guide to San Mateo County, California, and the available source-linked election records.

Geography and coverage

Canonical FIPS: 06081. Registry tag: county:06081. Administrative level: county.

Election reporting units and historical geography may differ from current Census county boundaries.

ca-counties.geojson · Canonical registry record (JSON)

• 2024 presidential election results
• Detailed multi-year county profile
• California county directory
• California 2024 presidential results