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Population Review

What is the population of Nassau County, NY?

Nassau County in New York has a population of 1,388,138, per Census ACS 5-Year estimates. The median household income is $143,408 and the median age is 41.8.

Context

Counties are the primary administrative subdivisions of states and a stable unit for tracking population. Nassau County's population reflects everyone within county lines, including residents of incorporated cities and unincorporated areas.

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Nassau County in New York has a population of 1,388,138, per Census ACS 5-Year estimates. The median household income is $143,408 and the median age is 41.8.