New Jersey - Criteria: A (event)
| Jacobus Evangelical Lutheran Church |
| Jacobus House |
| James Street Commons Historic District |
| Jefferson, Joe, Clubhouse |
| Jefferson Trust Company |
| Jeffries, Capt. John, Burial Marker |
| Jersey City Central Railroad Terminal |
| Jersey City YMCA |
| Jersey Homesteads Historic District |
| Johnsonburg Historic District |
| Jones, Benjamin, House |
| Jugtown Historic District |
| Kalmia Club, The |
| Kay-Evans Farm |
| Kearney, Edward S., House |
| KESTREL (steam yacht) |
| King Block |
| King's Highway Historic District |
| Kingsland Manor |
| Kingston Mill Historic District |
| Kingston Village Historic District |
| King Store and Homestead |
| Kip Homestead |
| Kirby's Mill |
| Kirch-Ford House |
| Kline Farmhouse |
| Kossuth Street School |
| Labor Bank Building |
| Lafayette Village Historic District |
| Laing House of Plainfield Plantation |
| Lake Carnegie Historic District |
| Lake Hopatcong Yacht Club |
| Lambertville Historic District |
| Lambertville House |
| Lamington Historic District |
| Landis Theatre-Mori Brothers Building |
| Lawnside School |
| Lawrence Township Historic District |
| Leaming, Thomas, House |
| Lebanon Historic District |
| Ledgewood Historic District |
| Lembeck and Betz Eagle Brewing Company District |
| Liberty Corner Historic District |
| Linwood Borough School No. 1 |
| Linwood Historic District |
| Little Egg Harbor Friends Meeting House |
| Little Red Schoolhouse |
| Little Silver Station |
| Little York Historic District |
| Livingston Avenue Historic District |
| Livingston Manor Historic District |
| Locktown Baptist Church |
| Long-A-Coming Depot |
| Long Pond Ironworks |
| Longstreet Farm |
| Lozier House and Van Riper Mill |
| Lucy, the Margate Elephant |
| Lyons Station |
| Lyons Veterans Administration Hospital Historic District |
| Macedonia African Methodist Episcopal Church |
| Madison Civic Commercial District |
| Madison Hotel |
| Madison Public Library and the James Building |
| Madison Station |
| Main Post Office |
| Manahawkin Baptist Church |
| Manasquan Friends Meetinghouse and Burying Ground |
| Manitou Park School House |
| Maplewood |
| Marcouse Building |
| Market Street Historic District |
| Marshalltown Historic District |
| Marshallville Historic District |
| Marven Gardens Historic District |
| Maskel, Thomas, House |
| Masker House |
| Matawan Station |
| Maurice River Lighthouse |
| Mauricetown Historic District |
| Mays Landing Historic District |
| Maywood Railroad Station |
| McDonald's-Kline's Mill |
| McKinney, David, Mill |
| Meadows, The |
| Mechlins Corner Tavern |
| Merchants' and Drovers' Tavern |
| Merino Hill House and Farm |
| Merriam, Henry W., House |
| Methodist Episcopal Church |
| Methodist Episcopal Church of Hibernia |
| Metuchen Borough Hall |
| Miah Maull Shoal Lighthouse |
| Middlebrook Encampment Site |
| Middlebush Village Historic District |
| Middlesex Avenue-Woodwild Park Historic District |
| Middletown Village Historic District |
| Middle Valley Historic District |
| Midland School |
| Mid-Town Historic District |
| Military Park Commons Historic District |
Data from United States Park Service and Wikidata
