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List of towns with formation dates, and other details
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Selected links to town websites, clerks, and historians
List of towns, formation dates, and other details
| Albany (city) | |
| Longest continuously chartered city in the U.S. | |
| 1614 Trading post (Fort Nassau) established on Castle/Westerlo Island. | |
| 1624 Dutch West India Company establishes Fort Orange (North of Westerlo Island) | |
| 1629 Killaen van Rensselaer acquires patroonship of Rensselaerswijck, surrounding Fort Orange | |
| 1652 Settlement surrounding Fort removed from Rensselaerswijck and named Beverwyck | |
| 1664 English rule, Beverwyck renamed New Albany | |
| 1673 Dutch return, New Albany renamed Willemstad(t) | |
| 1674 English rule resumed, name New Albany restored but “New” gradually discarded | |
| 1685 Rensselaerswijck given status of English manor; Van Rensselaers renounce all claims to Albany | |
| 1686 Charter incorporates City of Albany | |
| 1797 Made state capital | |
| 1815 Town of Colonie dissolved and divided between City of Albany and Town of Watervliet | |
| 1870 Annexed North Albany from Town of Watervliet; annexed large of Normansville from Town of Bethlehem | |
| 1916 Annexed Groesbeck and Kenwood from Bethlehem | |
| 1926 Annexed Westerlo Island from Town of Bethlehem | |
| 1967 Annexed Hurtsville and Karlsfeld from Town of Bethlehem | |
| Ballston | |
| In Albany County 1775-1791 | |
| Berne | |
| 1750 Settled by German immigrants | |
| 1795 Formed from Rensselaerville | |
| 1822 Daughter town Knox formed | |
| Bethlehem | |
| 1614 Fort Nassau established by the New Netherland Trading Company on Castle Island | |
| 1793 Formed from town of Watervliet | |
| 1832 Daughter town New Scotland formed | |
| 1870 Ceded large section north of Normansville to City of Albany | |
| 1916 Ceded Groesbeck and Kenwood to City of Albany | |
| 1926 Ceded Westerlo Island to City of Albany | |
| 1967 Ceded Hurtsville and Karlsfeld to City of Albany | |
| Cambridge | |
| In Albany County 1772-1791 | |
| Canaan | |
| In Albany County as Kings District 1772-1786 | |
| Catskill | |
| In Albany County 1772-1798 | |
| Claverack | |
| In Albany County 1772-1786 | |
| Coeymans | |
| 1636 Settlers from Utrecht | |
| 1791 Formed from Town of Watervliet | |
| 1815 Daughter town Westerlo formed | |
| Cohoes (city) | |
| 1869 Formed from the village of Cohoes in Town of Watervliet | |
| Colonie (1791-1815) | |
| 1791 Incorporated as a municipality in Town of Watervliet | |
| 1804 Village of Colonie incorporated | |
| 1808 Formed as town | |
| 1815 Divided and merged into City of Albany and Town of Watervliet | |
| Colonie | |
| 1895 Formed from Town of Watervliet | |
| Coxsackie | |
| In Albany County 1772-1800 | |
| Duanesburg(h) | |
| In Albany County 1765-1809 | |
| Easton | |
| In Albany County 1789-1791 | |
| Freehold | |
| In Albany County 1790-1800 | |
| Germantown | |
| In Albany County as East Camp District 1775-1786 | |
| Green Island | |
| 1896 Formed from Village of Green Island when Town of Watervliet was dissolved and divided | |
| Guilderland | |
| 1803 Formed from the Town of Watervliet | |
| 1871 Annexed land from Town of Watervliet | |
| Halfmoon | |
| In Albany County 1771-1791 | |
| Hillsdale | |
| In Albany County 1782-1786 | |
| Hoosick | |
| In Albany County 1785-1786 | |
| Hudson (city) | |
| In Albany County 1785-1786 | |
| Kinderhook | |
| In Albany County 1772-1786 | |
| Knox | |
| Settled by Germans before American Revolution | |
| 1822 Formed from Berne | |
| Livingston | |
| In Albany County 1772-1786 | |
| New Scotland | |
| c. 1660 Settled | |
| 1632 Formed from Bethlehem | |
| Pittstown | |
| In Albany County 1761-1791 | |
| Princetown | |
| In Albany County 1798-1809 | |
| Rensselaerville | |
| Settlers from New England following the American Revolution | |
| 1790 Formed from the Town of Watervliet | |
| 1795 Daughter town Berne formed | |
| 1815 Daughter town Westerlo formed | |
| Rensselaerwyck (district) | |
| 1629 Kiliaen van Rensselaer granted covering all future Albany and Rensselaer counties, excepting Fort Orange | |
| 1652 Village of Beverwyck created around the Fort, separated from Rensselaerswijck | |
| 1665 English recognize Dutch patroonship and grant patent | |
| 1685 Rensselaerswijck given status of English manor | |
| 1772 Rensselaerwyck becomes a district | |
| 1779 Rensselaerswyck divided into East and West Districts | |
| 1784 Daughter town Stephentown formed from East District | |
| 1788 West District becomes Town of Watervliet | |
| 1791 Rensselaer County formed including remainder of East District | |
| 1839 Manor ceased to exist following death of Stephen Van Rensselaer III | |
| Saratoga | |
| In Albany County 1772-1791 | |
| Schaghticoke | |
| In Albany County 1772-1791 | |
| Schenectady (town then city) | |
| In Albany County 1684-1809 | |
| Schoharie | |
| In Albany County 1784-1791 | |
| Stephentown | |
| In Albany County 1784-1791 | |
| Stillwater | |
| In Albany County 1788-1791 | |
| Watervliet (city) | |
| 1896 Formed as City of Watervliet from the village of West Troy when Town of Watervliet was dissolved and divided | |
| Watervliet (town) 1788-1896 | |
| 1788 Formed as a town replacing the West District of Rensselaerwyck; includes all present day Albany County except the city | |
| 1790 Daughter town Rensselaerville formed | |
| 1791 Daughter town Coeymans formed | |
| 1793 Daughter town Bethlehem formed | |
| 1803 Daughter town Guilderland formed | |
| 1809 Daughter town Niskayuna formed in Schenectady county | |
| 1815 Town of Colonie dissolved and divided between Town of Watervliet and City of Albany | |
| 1869 Village of Cohoes became city | |
| 1870 Ceded North Albany to City of Albany | |
| 1871 Ceded land to Town of Guilderland | |
| 1895 Town of Colonie formed to avoid being part of the City of Watervliet as plans for the new city were developed | |
| 1896 Town dissolved and divided into City of Watervliet and Town of Green Island | |
| Westerlo | |
| Settled before American Revolution | |
| 1815 Formed from towns of Coeymans and Rensselaerville | |
Selected links to town websites, clerks, and historians
| Albany | |
| Altamont | |
| Berne | |
| Bethlehem | |
| Coeymans | |
| Cohoes | |
| Colonie (Town) | |
| Colonie (Village) | |
| Green Island | |
| Guilderland | |
| Knox | |
| Menands | |
| New Scotland | |
| Ravena | |
| Rensselaerville | |
| Voorheesville | |
| Watervliet | |
| Westerlo |