Immunization Unit
Page last updated 9/2/2026.
The County of San Diego is dedicated to preventing vaccine-preventable diseases by following the West Coast Health Alliance’s (WCHA) recommendations for vaccinations based on credible, transparent, and science-based evidence.
The San Diego County Immunization Unit's mission is to stop vaccine-preventable diseases by helping more San Diegans get vaccinated. We do this through disease tracking, education, working with the community, health checks, school law, and the California Immunization Registry.
Relevant California Health and Safety Code Sections include
120100-122420, 120325-120380, and 120400-120435.
Find helpful information on where to find immunization services in San Diego County.
Learn more about the Immunization Unit Programs available in San Diego County.
Contact the San Diego Immunization Unit via e-mail, or call (866) 358-2966, for more information or to request materials.
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