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List of towns, formation dates, and other details
| Catskill | |
| In Ulster County 1798-1800 | |
| Colchester | |
| In Ulster County 1792-1797 | |
| Denning | |
| 1849 Formed from Town Shandaken | |
| 1859 Daughter town Hardenburgh formed | |
| Esopus | |
| 1650s Settled | |
| 1811 Formed from Town of Kingston | |
| 1818 Annexed land from Town of Hurley; ceded land to Town of Kingston | |
| 1842 Annexed from Town of New Paltz | |
| Gardiner | |
| Settled by French Huguenots | |
| 1853 Formed from towns of New Paltz, Rochester, and Shawangunk | |
| Hardenburgh | |
| 1859 Formed from towns of Denning and Shandaken | |
| Hurely | |
| 1662 Settled by Dutch as Nieuw Dorp | |
| 1669 Renamed Horley by English governor | |
| 1708 Hurley Patent granted | |
| 1787 Daughter town Woodstock formed | |
| 1788 Recognized as Town of Hurley by State of New York | |
| 1789 Annexed part of Hardenburgh | |
| 1809 Ceded land to New Paltz | |
| 1818 Ceded land Town of Esopus | |
| 1823 Daughter town Olive formed | |
| 1844 Daughter town Rosendale formed | |
| 1853 Ceded land to Town of Woodstock | |
| 1879 Annexed land from Town of Woodstock | |
| Kington (city) | |
| 1872 Formed as city from Villages of Rondout and Kingston, Town of Kingston | |
| Kingston (town) | |
| 1614 Settled by Dutch, later abandoned | |
| 1652 Settled again and abandoned | |
| 1661 Chartered as Wiltwijck | |
| 1667 Incorporated by patent as Kingston | |
| 1702 Recognized as a town by colony of New York | |
| 1787 Annexed Fox Patent | |
| 1788 Recognized as a town by State of New York | |
| 1811 Daughter towns Esopus and Saugerties formed | |
| 1818 Annexed land from Town of Esopus | |
| 1832 Land ceded to Town of Saugerties | |
| 1872 Villages of Kingston and Rondout become City of Kingston | |
| 1879 Daughter town Ulster formed; ceded land to towns of Hurley and Woodstock | |
| Liberty | |
| In Ulster County 1807–1809 | |
| Lloyd | |
| Original settlement was named Paltz | |
| 1845 Formed from Town of New Paltz | |
| Lumberland | |
| In Ulster County 1798 -1809 | |
| Mamakating | |
| In Ulster County 1743 – 1809 | |
| Marbletown | |
| 1669 Settled | |
| 1703 Marbletown Patent granted | |
| 1788 Recognized as a town by State of New York | |
| 1823 Daughter town Olive formed | |
| 1844 Daughter town Rosendale Precinct | |
| Marlborough | |
| c. 1725 Settled | |
| 1772 Formed as New Marlborough Precinct from Newburgh Precinct | |
| 1788 Recognized as Town of New Marlborough by State of New York | |
| 1800 Daughter town Plattekill formed; name changed to Marlborough | |
| Middletown | |
| In Ulster County 1789 – 1797 | |
| Montgomery | |
| In Ulster County 1772 – 1798 | |
| Neversink | |
| In Ulster County 1798 – 1809 | |
| Newburgh | |
| In Ulster County 1762 – 1798 | |
| New Paltz | |
| Settled by Huguenots and Walloons | |
| 1677 New Paltz Patent granted by English governor | |
| 1775 Bounds enlarged | |
| 1785 Formed as Town of New Paltz | |
| 1788 Recognized as town by State of New York | |
| 1809 Annexed land form Town of Hurley | |
| 1842 Ceded land to Town of Esopus | |
| 1844 Daughter town Lloyd formed | |
| 1853 Daughter town Gardiner formed | |
| New Windsor | |
| In Ulster County 1762 – 1798 | |
| Olive | |
| c. 1740 Settled in the Esopus Valley | |
| 1823 Formed from towns of Hurley, Marbletown, and Shandaken | |
| 1853 Ceded and annexed land with Town of Woodstock | |
| Plattekill | |
| c. 1700 Settled | |
| 1800 Formed from Town of Malborough | |
| Rochester | |
| c. 1680 Settled by Dutch, area called Mombaccus | |
| 1703 Rochester Patent granted | |
| 1788 Recognized as a town by State of New York | |
| 1789 Daughter town Middleton formed | |
| 1798 Daughter town Neversink formed | |
| 1806 Daughter town Wawarsing formed | |
| 1823 Annexed land from Town of Wawarsing | |
| 1853 Daughter town Gardiner formed | |
| Rosendale | |
| c. 1680 Settled by Dutch | |
| 1844 Formed from town of Hurley, Marbletown, and New Paltz | |
| Saugerties | |
| c. 1663 Settled by Dutch | |
| 1710 German Palatinates settled at West Camp | |
| 1811 Formed from Town of Kingston | |
| 1832 Annexed land from Town of Kingston | |
| Shandaken | |
| 1770s Settled | |
| 1804 Formed from Town of Woodstock | |
| 1823 Daughter town Olive formed | |
| 1849 Daughter town Denning Formed | |
| 1859 Daughter town Hardenburgh formed | |
| Shawangunk | |
| Settled by Dutch along Valley of Shawangunk River 1680 – 1700 | |
| c. 1709 Formed as Shawangunk Precinct attached to New Paltz | |
| 1743 Shawangunk Precinct reestablished | |
| 1788 Recogized as a town by State of New York | |
| 1853 Daughter town Gardiner formed | |
| Stampford | |
| In Ulster County 1792 – 1797 | |
| Thompson | |
| In Ulster County 1803 – 1809 | |
| Ulster | |
| 1879 Formed from Town of Kingston | |
| Wallkill | |
| In Ulster County 1743 – 1798 | |
| Wawarsing | |
| c. 1708 Settled by Dutch | |
| 1806 Formed from Town of Rochester | |
| 1823 Ceded land to Town of Rochester | |
| Windham | |
| In Ulster County 1798 – 1800 | |
| Woodstock | |
| c. 1762 Settled by Palatine Germans | |
| 1787 Formed from Town of Hurley | |
| 1789 Daughter town Middletown formed | |
| 1798 Daughter town Windham formed | |
| 1804 Daughter town Shandaken formed | |
| 1853 Annexed land from Town of Hurley; annexed and ceded land with Town of Olive | |
Selected links to town websites, clerks, and historians
Denning
Ellenville
Esopus
Gardner
Hardenburgh
Hurley
Kingston (city)
Kingston (town)
Lloyd
Marbletown
Marlborough
New Paltz (town)
New Paltz (village)
Olive
Plattekill
Rochester
Rosendale
Saugerties (town)
Saugerties (village)
Shandanken
Shawangunk
Ulster
Wawarsing
Woodstock