Explore Del Mar local geography, civic resources and voter guides, with dated official population and registration facts for San Diego County.
At a glance: Del Mar is an incorporated city in San Diego County. Population: 3,917 (California Department of Finance estimate as of January 1, 2026). Registered voters: 3,229 (California Secretary of State, as of September 4, 2026).
Del Mar is a small coastal city in northern San Diego County where the San Dieguito River meets the Pacific, with sandstone bluffs, beaches and a lagoon estuary at its edge. Its compact size means many municipal functions are organized under combined departments rather than large single-purpose ones. The city’s Administrative Services Department maintains the public’s records, administers the records-retention program, posts City Council agendas, prepares minutes, maintains the Del Mar Municipal Code and coordinates the municipal election. Within it, the City Clerk division is the contact for bringing an issue before the City Council, volunteering for a city committee, asking about the procedure for election to the council, or submitting a public-records request through the city’s portal. For county-administered voting services such as registration and vote-by-mail, use the San Diego County Registrar of Voters rather than City Hall.
The Administrative Services Department coordinates the Del Mar municipal election; its City Clerk division is the public contact.
Contact the City Clerk division, which the city identifies as the route for requests to address the council.
Through the city’s public records portal, per the Administrative Services page.
3,229 (California Secretary of State, as of September 4, 2026).
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