What is the population of Plymouth County, MA?
Plymouth County in Massachusetts has a population of 531,889, per Census ACS 5-Year estimates. The median household income is $109,698 and the median age is 42.9.
Context
Counties are the primary administrative subdivisions of states and a stable unit for tracking population. Plymouth County's population reflects everyone within county lines, including residents of incorporated cities and unincorporated areas.
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Plymouth County in Massachusetts has a population of 531,889, per Census ACS 5-Year estimates. The median household income is $109,698 and the median age is 42.9.