| A. T. House | Oak Hill | Building | 2006 |
| All Souls Church | Tannersville | Building | 1993 |
| Allan Teator Road Stone Arch Bridge | West Durham | Structure | 2008 |
| Allen, Captain Joseph, House | Catskill | Building | 2022 |
| Alpine, The | Hunter | Building | 2023 |
| Athens Lower Village Historic District | Athens | District | 1980 |
| Botsford, Henry T., House | Greenville | Building | 1993 |
| Brand Hollow Road Stone Arch Bridge | West Durham | Structure | 2008 |
| Brandow, William, House | Athens | Building | 2009 |
| Brick Row Historic District | Athens | District | 1980 |
| Bronck Farm 13-Sided Barn | Coxsackie | Building | 1984 |
| Bronck, Pieter, House NHL | Coxsackie | Building | 1967 |
| Bronk-Silvester House | Coxsackie | Building | 2002 |
| Centre Presbyterian Church | Windham | Building | 1979 |
| Christ Church | Greenville | Building | 2015 |
| Church of St. John the Evangelist | Hunter | Building | 2004 |
| Cleveland, L.E., House | Durham | Building | 2001 |
| Cole, Thomas, House NHL | Catskill | Building | 1966 |
| Commercial Building at 32 West Bridge Street | Catskill | Building | 1995 |
| Cornwallville Cemetery | Cornwallville | Site | 2017 |
| Croswell-Parsons Paper Mill Ruin | New Baltimore | Site | 2008 |
| DeWitt, W.F., Hotel | Durham | Building | 2001 |
| District School No. 11 | Catskill | Building | 1995 |
| DuBois Stone House | Catskill | Building | 1995 |
| DuBois, Benjamin, Stone House-Captain Martin Stone House | Catskill | Building | 1995 |
| Dunix | Cornwallville | District | 2018 |
| East Side Historic District | Catskill | District | 1982 |
| ELEANOR (Sailing Sloop) | Catskill | Structure | 1982 |
| Elka Park Historic District | Hunter | District | 1993 |
| Fischel, Harry, House | Hunter | Building | 2000 |
| Flint Mine Hill Archeological District | Coxsackie | District | 1978 |
| Ford's Store | Durham | Building | 2001 |
| Forestville Commonwealth | Earlton | District | 1974 |
| Greenville Presbyterian Church Complex | Greenville | Building | 1985 |
| Haines, Aaron, Family Cemetery | Haines Falls | Site | 2018 |
| Halcott Grange No. 881 | Halcott | Building | 2000 |
| Hallock, Joseph, House | Catskill | Building | 1995 |
| Hathaway | Tannersville | Building | 2008 |
| Haxton-Griffin Farm | Athens | Building | 2012 |
| Hervey Street Road Stone Arch Bridge | Hervey Street | Structure | 2008 |
| Hop-O-Nose Knitting Mill | Catskill | Building | 1995 |
| Houghtaling, Peter, Farm and Lime Kiln | West Coxsackie | District | 1986 |
| Hunter Mountain Fire Tower | Hunter | Structure | 1997 |
| Hunter Synagogue | Hunter | Building | 1999 |
| IOOF Hall | Hunter | Building | 2002 |
| Jewett Presbyterian Church Complex | Jewett | Building | 2001 |
| Lampman, William, House | Catskill | Building | 1995 |
| Laraway, John and Martinus, Inn | Prattsville | Building | 2012 |
| Layman, Frank D., Memorial | Hunter | Object | 2003 |
| Leeds Dutch Reformed Church | Leeds | Building | 1996 |
| Leeds Flat Site | Catskill | Site | 1998 |
| Lexington House | Lexington | Building | 1986 |
| Methodist Episcopal Church of Windham Centre | Windham | Building | 2009 |
| Moore Road Stone Arch Bridge | Cornwallville | Structure | 2008 |
| Moore-Howland Estate | Catskill | Building | 2010 |
| Morss Homestead/Federal City Homestead | Red Falls | Building | 1983 |
| New Baltimore Hamlet Historic District | New Baltimore | District | 1996 |
| Newkirk Homestead | Leeds | Building | 1979 |
| North Settlement Methodist Church | Ashland | Building | 1996 |
| Oak Hill Cemetery | Oak Hill | Site | 2011 |
| Oak Hill Historic District | Oak Hill | District | 2017 |
| Oak Hill Methodist Episcopal Church | Oak Hill | Building | 2006 |
| Old Episcopal Manse | Prattsville | Building | 2000 |
| Onteora Park Historic District | Hunter | District | 2003 |
| Osburn, Mrs., House | Durham | Building | 2001 |
| Parsonage, The | Oak Hill | Building | 2005 |
| Pierce, Charles, House | Durham | Building | 2001 |
| Platte Clove Post Office, Old | Elka Park | Building | 2005 |
| Pratt Rock Park | Prattsville | Site | 1992 |
| Pratt, Zadock, House | Prattsville | Building | 1986 |
| Prattsville Commercial Building | Prattsville | Building | 1996 |
| Prattsville Reformed Dutch Church | Prattsville | Building | 1996 |
| Prevost Manor House | Greenville | Building | 1972 |
| Reed Street Historic District | Coxsackie | District | 1980 |
| Rowena Memorial School | Palenville | Building | 2002 |
| Rushmore Farm | Athens | Building | 2010 |
| Salisbury Manor | Leeds | Building | 1979 |
| Shady Glen Road Stone Arch Bridge | Cornwallville | Structure | 2008 |
| St. Francis DeSales Church | Lexington | Building | 1999 |
| St. Mary's of the Mountain Church | Hunter | Building | 1999 |
| St. Paul's Lutheran Church | Oak Hill | Building | 2005 |
| Stanton Hill Cemetery | Hannacroix (Town of New Baltimore) | Site | 2016 |
| Stevens Hill Farm | Greenville | District | 2018 |
| Stranahan-DelVecchio House | Athens | Building | 1980 |
| Strong, Elijah, House | Ashland | Building | 2003 |
| Susquehannah Turnpike | Catskill | Site | 1974 |
| Tannersville Main Street Historic District | Tannersville | District | 2008 |
| Torry-Chittendon Farmhouse | Durham | Building | 2010 |
| Trinity Episcopal Church | Ashland | Building | 1996 |
| Tripp House and Store Complex | Durham | Building | 2001 |
| Twilight Park Historic District | Haines Falls | District | 2007 |
| Ulster and Delaware Railroad Station | Hunter | Building | 1996 |
| Union Chapel | Windham | Building | 2001 |
| US Post Office-Catskill | Catskill | Building | 1988 |
| Van Bergen House | New Baltimore | Building | 1991 |
| Van Gelder, David, Octagon House | Catskill | Building | 1998 |
| Van Loon, Albertus, House | Athens | Building | 1980 |
| Van Vechten, John, House | Leeds | Building | 1995 |
| Village of Coxsackie Cemetery | Coxsackie | Site | 2021 |
| Weldon House | East Durham | Building | 2000 |
| West Athens Hill Site | Athens | Site | 1973 |
| West Settlement Methodist Church | Ashland | Building | 1996 |
| Wiley Hose Company Building | Catskill | Building | 1995 |
| Woodward Road Stone Arch Bridge | E. Durham | Structure | 2009 |
| Zion Lutheran Church | Athens | Building | 1980 |