NOTE: Gray indicates insufficient data or a suppressed estimate.
Uninsured rates concentrate most heavily in Philadelphia's core urban zip codes and the Camden area across the Delaware River, where several zip codes reach 15–25% uninsured, with pockets near Trenton also showing elevated rates in the teal-to-green range. Suburban zip codes in Chester, Delaware, and Montgomery counties—particularly around King of Prussia and the western periphery—consistently register among the lowest uninsured rates at under 5%, creating a sharp urban-suburban divide. Norristown stands out as a modest exception to the suburban trend, displaying slightly elevated uninsured percentages relative to its surrounding Montgomery County neighbors.
Data: U.S. Census Bureau, 2023 ACS
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