New York - Significance region: Local
| King, Polaski, House |
| Kingsboro Historic District |
| Kings County Savings Bank |
| Kings Daughters Public Library |
| Kingsford Historic District |
| Kingsford House |
| Kingsland Homestead |
| Kingston Barrel Factory |
| Kingston City Almshouse |
| Kingston City Library |
| Kingston Gas and Electric Co. Building |
| Kingston-Port Ewen Suspension Bridge |
| Kinne, David and Mary, Farmstead |
| Kip-Beekman-Heermance Site (A027-16-0223) |
| Kirk House |
| Kirkland Hotel |
| Kirstein Building |
| Kismet Temple |
| Knapp House |
| Knapp, Timothy, House and Milton Cemetery |
| Knickerbocker Field Club |
| Knickerbocker Hotel |
| Knickerbocker Mansion |
| Knickerbocker Press Building |
| Knights of the Maccabees Hall |
| Knollcroft |
| Knollwood |
| Knower House |
| Knox Building |
| Knox District School No. 5 |
| Knox Street Historic District |
| Koda-Vista Historic District |
| Kol Israel Synagogue |
| Koon, Henry, House |
| Kreiner Malt House and Grain Elevator |
| Kreischer House |
| Kreuzer-Pelton House |
| Kripplebush Historic District |
| Krom, Lucas, Stone House |
| Krom Stone House and Dutch Barn |
| Krom Stone House at 31 Upper Whitfield Road |
| Krom Stone House at 45 Upper Whitfield Road |
| Krum, Hiram, House |
| Kurtz, J., and Sons Store Building |
| K. WHITTELSEY (Tugboat) |
| La Casina |
| Lace House |
| Lackman, J. Leonard, House |
| Lacona Clock Tower |
| Lacona Railroad Station and Depot |
| Lacy-Van Vleet House |
| Ladd Farmhouse |
| Ladentown United Methodist Church |
| Lady Tree Lodge |
| Lady Washington Hose Company |
| La Farge Land Office |
| La Farge Retainer Houses |
| La Fargeville United Methodist Church |
| Lafayette Avenue Presbyterian Church |
| Lafayette Flats |
| Lafayette High School |
| Lafevre, John A., House and School |
| LaGrange District School |
| Lainhart Farm Complex and Dutch Barn |
| Lake George Avenue Historic District |
| Lake Pleasant Town Hall |
| Lake Shore & Michigan Southern Freight Depot |
| Lake Shore & Michigan Southern Railroad Station |
| Lakeside Park |
| Lake Street Historic District |
| Lakeview Avenue Historic District |
| Lakeview Cemetery |
| Lake View Cemetery |
| Lake View Cemetery |
| Lake View Grange No. 970 |
| Lakewood Village Hall |
| Lalino Stone Arch Bridge |
| Lamb's Club |
| Lampman, William, House |
| LANAI (yacht) |
| Lancaster District School No. 6 |
| Lancaster Municipal Building |
| Lance Farm |
| Land of Clover |
| Land Office |
| Landon, Samuel, House |
| Landsberg, William, House |
| Lane Cottage |
| Langdon Estate Gatehouse |
| Lanier, James F. D., Residence |
| Lansingburgh Academy |
| Lansingburgh Village Burial Ground |
| Lansing, John V. A., Farmhouse and Billsen Cemetery and Archeological Site |
| Lansing Manor House |
| Lapham, Ambrose S., House |
| Laraway, John and Martinus, Inn |
| Larchmont Avenue Church |
| Larom Cottage |
| Larom-Welles Cottage |
| Larrowe House |
Data from United States Park Service and Wikidata
