What is the population of Monmouth County, NJ?
Monmouth County in New Jersey has a population of 643,615, per Census ACS 5-Year estimates. The median household income is $122,727 and the median age is 43.2.
Context
Counties are the primary administrative subdivisions of states and a stable unit for tracking population. Monmouth County's population reflects everyone within county lines, including residents of incorporated cities and unincorporated areas.
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Monmouth County in New Jersey has a population of 643,615, per Census ACS 5-Year estimates. The median household income is $122,727 and the median age is 43.2.