NOTE: Gray indicates insufficient data or a suppressed estimate.
Broadband adoption across the San Diego metro is generally high, with most zip codes exceeding 80%, though a clear north-south gradient emerges as coastal and northern inland communities like Encinitas and Poway display rates approaching or exceeding 95%, while central urban and southern areas around National City, San Diego's urban core, and portions of Chula Vista drop into the 65–80% range. The lowest broadband penetration clusters tightly around National City and adjacent south San Diego neighborhoods, likely correlating with lower-income demographics, while the large eastern zip codes maintaining solidly yellow (90%+) shading suggest that even suburban and semi-rural areas in Santee and eastern Poway benefit from robust connectivity infrastructure.
Data: U.S. Census Bureau, 2023 ACS
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