| Alverson-Copeland House | Lima | Building | 1989 |
| Avon Five Arch Bridge | Avon | Structure | 2012 |
| Avon Inn | Avon | Building | 1991 |
| Avon Village Historic District | Avon | District | 2022 |
| Barber-Mulligan Farm | Avon | Building | 1980 |
| Barber, Aaron, Memorial Building | Avon | Building | 2008 |
| Barnard Cobblestone House | Lima | Building | 1989 |
| Black and White Farm Barn | Sonyea | Building | 1988 |
| Boyd & Parker Park and Groveland Ambuscade | Cuylerville | District | 2009 |
| Bristol House | Lima | Building | 1989 |
| Caledonia Fish Hatchery | Caledonia | Building | 2015 |
| Caledonia House Hotel | Caledonia | Building | 2001 |
| Caledonia Library | Caledonia | Building | 2007 |
| Cargill House | Lima | Building | 1989 |
| Clark Farm Complex | Lima | Building | 1989 |
| Clark-Keith House | Caledonia | Building | 1998 |
| Claud No. 1 Archeological Site | Groveland | Site | 1975 |
| Conesus Amusement Hall | Conesus | Building | 2005 |
| Corby Farm Complex | Honeoye Falls | Building | 2008 |
| Coverdale Cobblestone House | Leicester | Building | 2005 |
| Dansville Downtown Historic District | Dansville | District | 2007 |
| Dansville Library | Dansville | Building | 1977 |
| Dayton House | Lima | Building | 1989 |
| Delaware, Lackawanna & Western Railroad Station | Leicester | Building | 2005 |
| DePuy, William, House | Lima | Building | 1989 |
| Draper House | Lima | Building | 1989 |
| Edgerley | Oakland | Building | 1980 |
| Elmwood | Nunda | Building | 2015 |
| Engleside | Dansville | Building | 2009 |
| English Evangelical Lutheran Church of Dansville | Dansville | Building | 2013 |
| First Methodist Episcopal Church of Avon | Avon | Building | 2005 |
| First Presbyterian Church of Avon | East Avon | Building | 2005 |
| First Presbyterian Church of Tuscarora | Tuscarora | Building | 2004 |
| G.A.R. Memorial Hall | Hunt | Building | 2006 |
| Ganoung Cobblestone Farmhouse | Lima | Building | 1989 |
| Geiger, Elias H., House | Dansville | Building | 2006 |
| Genesee Wesleyan Seminary and Genesee College Hall | Lima | Building | 1976 |
| Geneseo Historic District NHL | Geneseo | District | 1977 |
| Godfrey House and Barn Complex | Lima | Building | 1989 |
| Hall's Opera Block | Avon | Building | 2006 |
| Harden House | Lima | Building | 1989 |
| Harmon, William, House | Lima | Building | 1989 |
| Hartman, William, Farmstead | Dansville | Building | 2000 |
| Hemlock Fairground | Hemlock | District | 2000 |
| Hillcrest | Lima | Building | 1980 |
| Homestead, The | Geneseo | Building | 1974 |
| House at No. 13 Grove Street | Mount Morris | Building | 1999 |
| House at No. 176 South Main Street | Mount Morris | Building | 1999 |
| House at No. 30 at Murray Street | Mount Morris | Building | 1999 |
| House at No. 48 Grove Street | Mount Morris | Building | 1999 |
| House at No. 8 State Street | Mount Morris | Building | 1999 |
| Kellerman Log Cabin | Conesus | Building | 2006 |
| Kellogg, J. Francis, House | Avon | Building | 2003 |
| Kemp, R. P., No. 1 Site | West Sparta | Site | 1977 |
| Leech-Lloyd Farmhouse and Barn Complex | Lima | Building | 1989 |
| Leech-Parker Farmhouse | Lima | Building | 1989 |
| Lima Village Historic District | Lima | District | 1987 |
| Linwood | York | District | 1997 |
| Livonia Baptist Church | Livonia | Building | 1977 |
| Main Street Historic District NHL | Geneseo | District | 1977 |
| Main Street Historic District (Boundary Increase) NHL | Geneseo | District | 1985 |
| Markham Cobblestone Farmhouse and Barn Complex | Lima | Building | 1989 |
| Martin Farm Complex | Lima | Building | 1989 |
| Mills, Gen. William A., House | Mount Morris | Building | 1978 |
| Morgan Cobblestone Farmhouse | Lima | Building | 1989 |
| Moses, Ogilvie, Farmhouse | Lima | Building | 1989 |
| Moses, Zebulon, Farm Complex | Lima | Building | 1989 |
| Murray Street Historic District | Mount Morris | District | 1996 |
| National Hotel | Cuylerville | Building | 2004 |
| New Family Theater | Mount Morris | Building | 1997 |
| North Bloomfield School | North Bloomfield | Building | 1981 |
| Nunda Village Historic District | Nunda | District | 2025 |
| Payne Cobblestone House | Conesus | Building | 2006 |
| Peck, J. Franklin, House | Lima | Building | 1989 |
| Peck, Thomas, Farmhouse | Lima | Building | 1989 |
| Pioneer Farm | Dansville | Building | 1970 |
| School No. 6 | Lima | Building | 1989 |
| Sliker Cobblestone House | Conesus | Building | 2007 |
| South Main Street Historic District | Mount Morris | District | 1996 |
| Sparta First Presbyterian Church | Groveland Station | Building | 2007 |
| Spencer House | Lima | Building | 1989 |
| St. John's Episcopal Church | Mount Morris | District | 1991 |
| St. Rose Roman Catholic Church Complex | Lima | Building | 1988 |
| Stanley House | Lima | Building | 1989 |
| State and Eagle Streets Historic District | Mount Morris | District | 1996 |
| Sweet Briar | Geneseo | Building | 2010 |
| Tram Site | Livonia | Site | 1999 |
| Union Block | Nunda | Building | 2000 |
| US Post Office-Dansville | Dansville | Building | 1988 |
| Vary, William L., House | Lima | Building | 1989 |
| Wadsworth Fort Site | Geneseo | Site | 1975 |
| Warner, Asahel, House | Lima | Building | 1989 |
| Warner, Matthew, House | Lima | Building | 1989 |
| Westerly | Piffard | Building | 1974 |
| Williamsburg Cemetery | Hampton Corners | Site | 2002 |