NOTE: Gray indicates insufficient data or a suppressed estimate.
The highest concentrations of Non-Hispanic Black residents cluster prominently in the Hartford area, where one zip code exceeds 50%, along with elevated percentages in the New Haven and Bridgeport corridors along the southern coast. A stark contrast exists between these urban cores and the surrounding suburban and rural zip codes across eastern and northwestern Connecticut, where percentages typically fall below 5%. Secondary clusters of moderate Black population shares (10–30%) appear in Waterbury, Stamford, and Norwalk, reinforcing the pattern of racial concentration in the state's larger cities.
Data: U.S. Census Bureau, 2023 ACS
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