| | | 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 |
| | | Providence County | RI | 44007 | | Providence-Warwick, RI-MA 39300 | Boston-Worcester-Providence,
MA-RI-NH-CT 148 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=ProvidenceCounty+RI |
| | | Rockingham County | NH | 33015 | Rockingham
County-Strafford County,
NH 40484 | Boston-Cambridge-Newton,
MA-NH 14460 | Boston-Worcester-Providence,
MA-RI-NH-CT 148 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=RockinghamCounty+NH |
| | | Strafford County | NH | 33017 | Rockingham
County-Strafford County,
NH 40484 | Boston-Cambridge-Newton,
MA-NH 14460 | Boston-Worcester-Providence,
MA-RI-NH-CT 148 | Outlying | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=StraffordCounty+NH |
| | | 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 |
| | | Washington County | RI | 44009 | | Providence-Warwick, RI-MA 39300 | Boston-Worcester-Providence,
MA-RI-NH-CT 148 | Central | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=WashingtonCounty+RI |
| | | 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 |
