Plymouth County, Massachusetts

Plymouth County is a county in Massachusetts with an estimated population of 535,308 in 2023. 2 cities, towns and Census places in it are indexed here.

Largest places in Plymouth County

About Plymouth County

Plymouth County is one of the counties of Massachusetts. County governments in Massachusetts handle local services such as courts, property records and elections; cities and towns inside the county run their own municipal services. Population figures come from the Census Bureau's Vintage 2023 estimates, which are updated annually.