| | Norfolk County | MA | 25021 | Boston, MA 14454 | Boston-Cambridge-Newton,
MA-NH 14460 | Boston-Worcester-Providence,
MA-RI-NH-CT 148 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=NorfolkCounty+MA |
| | Plymouth County | MA | 25023 | Boston, MA 14454 | Boston-Cambridge-Newton,
MA-NH 14460 | Boston-Worcester-Providence,
MA-RI-NH-CT 148 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=PlymouthCounty+MA |
| | Suffolk County | MA | 25025 | Boston, MA 14454 | Boston-Cambridge-Newton,
MA-NH 14460 | Boston-Worcester-Providence,
MA-RI-NH-CT 148 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=SuffolkCounty+MA |
| | Worcester County | MA | 25027 | | Worcester, MA 49340 | Boston-Worcester-Providence,
MA-RI-NH-CT 148 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=WorcesterCounty+MA |