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Welcome to the County of San Diego
We provide a variety of health, public safety, and community services to the region's 18 cities and a large unincorporated area.
Get involved
Learn more about County projects and topics, along with opportunities to give your input.
Elected officials
Paloma Aguirre
District 1
Chair Pro Tem
Terra Lawson-Remer
District 3
Chair
Monica Montgomery Steppe
District 4 Vice Chair
Jordan Z. Marks
Assessor, Recorder, County Clerk
Summer Stephan
District Attorney
Kelly A. Martinez
Sheriff
Larry Cohen
Treasurer Tax Collector
Featured
Woman putting a water bottle to prepare emergency backpack in living room
Federal Impacts Assistance Hub
Community resources, services, and County policies.
Woman putting a water bottle to prepare emergency backpack in living room
Be prepared for emergencies
Could you evacuate in 15 minutes or less? Make a plan, be ready to go.
County budget
The County’s $9.16 billion 2026-27 Budget highlights what we can achieve working together — public servants, elected officials and you, the people we serve — driven by our shared commitment to stability, access and opportunity.
Annual report
A quick look at the County of San Diego’s 2024–25 Annual Report, highlighting key achievements and priorities shaping a stronger, more resilient region.
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