NOTE: Gray indicates insufficient data or a suppressed estimate.
Uninsured rates across Tennessee exhibit a pronounced east-west gradient, with many zip codes in the western third of the state—particularly in and around the Memphis metropolitan area—displaying notably higher uninsured percentages (15–25%+), while eastern Tennessee zip codes, especially near Knoxville and the Appalachian border region, tend to cluster in the lower ranges (5–10%). Several dark purple zip codes scattered throughout the Nashville basin and suburban rings indicate pockets with very low uninsured rates (under 5%), likely reflecting areas with higher employer-sponsored coverage or younger professional demographics. A handful of isolated bright yellow and green outliers in the southwestern corner and along the southern border suggest small-population zip codes where uninsured rates spike above 30%, potentially driven by rural poverty and limited healthcare access.
Data: U.S. Census Bureau, 2023 ACS
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