Plainville is a populated place LOCATED WITHIN the City of New Bedford. In turn, the City of New Bedford is located within Bristol County.
Plainville is located at latitude 41.682 and longitude -70.961.
Since Plainville is located within the City of New Bedford, all of the census and demographic data for residents of Plainville are included as part of the information reported for City of New Bedford in the "Profile" tab above.