NOTE: Gray indicates insufficient data or a suppressed estimate.
The Central Valley—particularly zip codes in and around Fresno, Kern, and Tulare counties—exhibits consistently elevated uninsured rates, often exceeding 15–20%, reflecting the region's large agricultural workforce and lower employer-sponsored coverage rates. Coastal urban corridors from the San Francisco Bay Area through Los Angeles display notably lower uninsured percentages, generally below 5–10%, likely driven by higher rates of employer-based and marketplace insurance uptake. A few isolated zip codes in the far north and southeastern desert regions show striking yellow outliers above 30%, suggesting small populations with limited access to coverage options.
Data: U.S. Census Bureau, 2023 ACS
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