NOTE: Gray indicates insufficient data or a suppressed estimate.
Uninsured rates across the Baltimore metro area are generally low, with most zip codes falling below 15%, though a distinct cluster of elevated rates (approximately 15–20%) appears in central Baltimore and select areas just to the east and southeast of the city core. The outer suburban ring—particularly zip codes near Columbia, Ellicott City, and Towson—tends to exhibit lower uninsured rates in the 3–8% range, while several gray-shaded areas lacking data create gaps in coverage assessment, especially in the southern and eastern periphery. The highest concentration of uninsured population aligns closely with Baltimore's urban center, suggesting a sharp urban-suburban divide in health insurance coverage.
Data: U.S. Census Bureau, 2023 ACS
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