What is the population of Middlesex County, NJ?
Middlesex County in New Jersey has a population of 861,535, per Census ACS 5-Year estimates. The median household income is $109,028 and the median age is 39.4.
Context
Counties are the primary administrative subdivisions of states and a stable unit for tracking population. Middlesex County's population reflects everyone within county lines, including residents of incorporated cities and unincorporated areas.
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Middlesex County in New Jersey has a population of 861,535, per Census ACS 5-Year estimates. The median household income is $109,028 and the median age is 39.4.