| City/Town | County | Date Settled | Date Incorporated | Parent |
|---|---|---|---|---|
| Abington | Plymouth | 1668 | 1712 | Bridgewater |
| Acton | Middlesex | 1680 | 1735 | Concord |
| Acushnet | Bristol | 1659 | 1860 | Fairhaven |
| Adams | Berkshire | 1762 | 1778 | East Hoosuck |
| Agawam | Hampden | 1635 | 1855 | West Springfield |
| Alford | Berkshire | 1740 | 1773 | Great Barrington |
| Amesbury | Essex | 1654 | 1668 | Salisbury |
| Amherst | Hampshire | 1703 | 1775 | Hadley |
| Andover | Essex | 1642 | 1646 | |
| Aquinnah | Dukes | 1669 | 1870 | |
| Arlington | Middlesex | 1630 | 1807 | Cambridge |
| Ashburnham | Worcester | 1736 | 1765 | |
| Ashby | Middlesex | 1676 | 1767 | Ashburnham, Fitchburg & Townsend |
| Ashfield | Franklin | 1743 | 1765 | |
| Ashland | Middlesex | 1750 | 1846 | Framingham, Holliston & Hopkinton |
| Athol | Worcester | 1735 | 1762 | |
| Attleboro | Bristol | 1634 | 1694 / 1914 | Rehoboth |
| Auburn | Worcester | 1714 | 1778 | Leicester & Worster |
| Avon | Norfolk | 1700 | 1888 | Stoughton |
| Ayer | Middlesex | 1668 | 1871 | Groton |
| Barnstable | Barnstable | 1637 | 1638 | |
| Barre | Worcester | 1720 | 1774 | Rutland |
| Becket | Berkshire | 1740 | 1765 | |
| Bedford | Middlesex | 1640 | 1729 | Billerica & Concord |
| Belchertown | Hampshire | 1731 | 1761 | |
| Bellingham | Norfolk | 1713 | 1719 | Dedham, Mendon & Wrentham |
| Belmont | Middlesex | 1636 | 1859 | Waltham, Watertown & West Cambridge |
| Berkley | Bristol | 1638 | 1735 | Dighton & Taunton |
| Berlin | Worcester | 1665 | 1812 | Bolton & Marlborough |
| Bernardston | Franklin | 1738 | 1762 | |
| Beverly | Essex | 1626 | 1668 | Salem |
| Billerica | Middlesex | 1637 | 1655 | |
| Blackstone | Worcester | 1662 | 1845 | Mendon |