Median Age by Zip Code (ZCTA5) — New Jersey

NOTE: Gray indicates insufficient data or a suppressed estimate.

Northern New Jersey's suburban zip codes, particularly in Bergen, Morris, and Sussex counties, tend to skew older with median ages frequently in the 45–55+ range, reflecting established family and retirement-age communities. In contrast, urban cores around Newark, Jersey City, New Brunswick, and Trenton display notably younger median ages in the 25–35 range, consistent with higher concentrations of young professionals, renters, and college-age populations. The southern Shore counties present a mixed pattern, with several coastal zip codes—likely retirement and seasonal communities—registering among the highest median ages in the state at 55–60+, while inland Pine Barrens areas trend younger.

Data: U.S. Census Bureau, 2023 ACS

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