NOTE: Gray indicates insufficient data or a suppressed estimate.
Uninsured rates across South Carolina exhibit substantial geographic variation, with several zip codes in the rural Midlands and Pee Dee regions displaying rates exceeding 20–25%, while coastal and suburban areas around Charleston, Hilton Head, and the immediate Columbia metro tend toward lower uninsured percentages in the 5–10% range. A notable cluster of very low uninsured rates (under 5%) appears in scattered zip codes near military installations and affluent suburban communities, contrasting sharply with adjacent rural zip codes that can exceed 15–20%. The northwestern Upstate region shows a mixed pattern, with pockets of higher uninsured rates—likely correlated with Hispanic/Latino agricultural workforce concentrations—interspersed among zip codes with moderate coverage levels.
Data: U.S. Census Bureau, 2023 ACS
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