New York - Area of significance: Social History
| Jackson Avenue Subway Station (IRT) |
| Jefferson Street Cemetery |
| Jenkins, Daniel Webster, House |
| Jericho Friends Meeting House Complex |
| Jewish Center of Lake Huntington |
| Jewish Community Center of White Sulphur Springs |
| Johnson, C. Fred, Park Carousel |
| Johnson City Historic District |
| Johnson City Square Deal Arch |
| Johnson, George F., Recreation Park Carousel |
| Johnson, George W., Park Carousel |
| Johnson, James Weldon, House |
| Jones, John W., House |
| Joralemon Street Tunnel |
| Julius' Bar |
| Karpen House |
| Keene Valley Country Club |
| Keene Valley Library |
| Kehila Kedosha Janina Synagogue |
| Kilmer, Jonas M., House |
| Kilts Farmstead |
| Kingsford Historic District |
| Kingston Barrel Factory |
| Kingston City Almshouse |
| Kinne, David and Mary, Farmstead |
| Kip-Beekman-Heermance Site (A027-16-0223) |
| Kismet Temple |
| Knights of the Maccabees Hall |
| Ladentown United Methodist Church |
| Lady Tree Lodge |
| La Farge Land Office |
| La Fargeville United Methodist Church |
| Lafayette Avenue Presbyterian Church |
| Lafayette Flats |
| Lake George Battlefield Park Historic District |
| Lake Pleasant Town Hall |
| Lake View Grange No. 970 |
| Land of Clover |
| Lattingtown Baptist Church |
| Lavender Hill Commune |
| Le Roy Historic District |
| Levitz Family Farm |
| Lewis Avenue Congregational Church |
| Lewis County Fairgrounds |
| Lewis County Soldiers' and Sailors' Monument |
| Lighthouse |
| Lily Dale Assembly Historic District |
| Lisanti Chapel |
| Lisbon Town Hall |
| Lithuanian Alliance of America |
| Lithuanian National Association Hall |
| Little Falls City Hall |
| Littlefield, Hamilton and Rhoda, House |
| Liverpool Cemetery |
| Livingston, Philip, Junior High School |
| Llenroc |
| Lloyd, Joseph, House |
| Loch Sheldrake Synagogue |
| Long Island National Cemetery |
| Lower East Side Historic District |
| Lower Niagara River Spear Fishing Docks Historic District |
| Lowville Masonic Temple |
| Lustron Houses of Jermain Street Historic District |
| Macedonia Baptist Church |
| Maine Central School |
| Main Mall Historic District |
| Main School |
| Main Street Subway Station (Dual System IRT) |
| Mallows, The |
| Mandeville House |
| Manhanset Chapel |
| Manhattan Beach Jewish Center |
| Manhattanville Houses |
| Manor Club |
| Mansion Historic District |
| Maple Avenue Historic District |
| Maple Grove Cemetery |
| Marcus Garvey Park |
| Martinsburg Town Hall |
| Masonic Temple-Newport Lodge No. 445 F. & A.M. |
| Mathewson, Holden B., House |
| McKay, Claude, Residence |
| McKenzie, John and Harriet, House |
| M'Clintock House |
| McNaught Family Farm |
| Menge House Complex |
| Methodist Episcopal Church |
| Methodist Episcopal Church of Windham Centre |
| Methodist-Protestant Church at Fisher's Landing |
| Metro North Plaza |
| Middle Island Presbyterian Church |
| Middletown Plaza |
| Mills, Harriet May, House |
| Mill Street-North Clover Street Historic District |
| Modern Times School |
| Mohawk Valley Grange Hall |
| Mollenhauer, John, House |
| Monfort Cemetery |
| Monroe Motor Car Company Building and the Main Garage Company Building |
| Moriah Town Office Building |
Data from United States Park Service and Wikidata
