Massachusetts Counties by Population

The most populated counties in Massachusetts are Middlesex County with 1,623,109, Worcester County at 858,898, Essex County with 806,103, Suffolk County at 785,443, and Norfolk County with 722,112. You can get the most current Census population data for all 14 Massachusetts counties, sorted from the most populous counties in Massachusetts to the least, according to the 2022 American Community Survey.

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