U.S. Citizens (% of Population Over 18) by Zip Code (ZCTA5) — New Jersey

NOTE: Gray indicates insufficient data or a suppressed estimate.

Zip codes in southern New Jersey and the northwestern rural areas consistently report U.S. citizenship rates above 95% among adults, while a pronounced cluster of lower citizenship rates—often falling below 80–85%—concentrates in the northeastern urban corridor spanning Hudson, Essex, Passaic, and Middlesex counties. This urban-rural divide is particularly stark around the Newark–Jersey City–Paterson metro area, where several adjacent zip codes display the darkest shading on the map, indicating the highest concentrations of non-citizen adult residents. Scattered pockets of moderate citizenship rates (85–90%) also appear in central New Jersey, likely corresponding to suburban communities with significant immigrant populations.

Data: U.S. Census Bureau, 2023 ACS

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