% of Population on Food Stamps or SNAP (Last 12 Months), by Zip Code (ZCTA5) — San Francisco Metro

NOTE: Gray indicates insufficient data or a suppressed estimate.

Higher SNAP participation rates cluster prominently in East Oakland, parts of Richmond, and eastern San Jose, where several zip codes reach 20–30% or above, reflecting concentrated economic hardship in these historically underserved communities. In sharp contrast, zip codes spanning much of western San Francisco, the Peninsula corridor through Daly City southward, and affluent East Bay suburbs like Fremont and the Tri-Valley area register well below 5%. The geographic gradient is particularly stark across the Oakland–Berkeley axis, where adjacent zip codes can differ by 15–20 percentage points, underscoring hyperlocal disparities in food assistance need within short distances.

Data: U.S. Census Bureau, 2023 ACS

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