NOTE: Gray indicates insufficient data or a suppressed estimate.
Uninsured rates exceeding 30–50% concentrate heavily in central and southwest Houston zip codes, forming a dense corridor of yellow-shaded areas that likely correspond to historically underserved, immigrant-heavy neighborhoods such as Gulfton, Sharpstown, and the Greater Northside. The outer suburban ring—including The Woodlands, Katy, League City, and Friendswood—consistently registers below 10%, creating a stark core-periphery divide in coverage. Pasadena and areas east of downtown also show elevated uninsured rates in the 20–30% range, suggesting that industrial and working-class communities along the Ship Channel face notable coverage gaps relative to their suburban neighbors.
Data: U.S. Census Bureau, 2023 ACS
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