Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Ludlam Creek | Stream | | Cape May | 39 17 01 N | 074 41 00 W |
| Ludlam Thorofare | Channel | 6 | Cape May | 39 09 08 N | 074 42 25 W |
| Ludlams Pond | Reservoir | 1 | Cape May | 39 11 43 N | 074 50 25 W |
| Ludlams Pond Dam | Dam | 1 | Cape May | 39 11 43 N | 074 50 25 W |
| Ludlams School | School | 3 | Cape May | 39 11 40 N | 074 50 01 W |
| Ludlow Station | Locale | 120 | Hunterdon | 40 41 03 N | 075 00 17 W |
| Ludlum Gut | Gut | 0 | Cape May | 39 04 28 N | 074 47 16 W |
| Ludlum Pond | Lake | 0 | Cape May | 39 04 34 N | 074 47 40 W |
| Luis Munoz Marin Middle School | School | 41 | Essex | 40 46 21 N | 074 09 38 W |
| Luke Park | Park | 37 | Middlesex | 40 26 39 N | 074 31 18 W |
| Lumberton | Populated Place | 9 | Burlington | 39 57 57 N | 074 48 19 W |
| Lumberville Dam | Dam | 18 | Hunterdon | 40 24 43 N | 075 02 37 W |
| Lummis Lake Lower Dam | Dam | 8 | Cumberland | 39 20 42 N | 075 10 59 W |
| Lummis Lakes | Reservoir | 9 | Cumberland | 39 21 01 N | 075 10 31 W |
| Lummis Marsh Branch | Stream | | Salem | 39 29 44 N | 075 07 13 W |
| Lummistown | Populated Place | 13 | Cumberland | 39 21 03 N | 075 10 45 W |
| Luppatatong Creek | Stream | | Monmouth | 40 26 09 N | 074 12 27 W |
| Lurker Park | Park | 41 | Morris | 40 49 53 N | 074 20 39 W |
| Luse Pond | Lake | 181 | Warren | 40 56 01 N | 074 53 44 W |
| Luther Day School | School | 11 | Camden | 39 56 37 N | 075 04 06 W |
| Luther Lee Emerson Elementary School | School | 23 | Bergen | 40 57 21 N | 073 58 16 W |
| Lutheran Church of the Good Shepard | Church | 112 | Warren | 40 58 57 N | 074 59 55 W |
| Lutheran Church of the Redeemer | Church | 41 | Bergen | 40 56 45 N | 073 59 30 W |
| Lyncrest Elementary School | School | 19 | Bergen | 40 55 37 N | 074 07 34 W |
| Lyncrest Park | Park | 19 | Bergen | 40 55 36 N | 074 07 37 W |
| Lyndhurst | Populated Place | 10 | Bergen | 40 48 43 N | 074 07 28 W |
| Lyndhurst High School | School | 41 | Bergen | 40 48 33 N | 074 07 36 W |
| Lyndhurst Municipal Park | Park | 41 | Bergen | 40 48 51 N | 074 07 24 W |
| Lyndhurst Post Office | Post Office | 41 | Bergen | 40 48 41 N | 074 07 25 W |
| Lyndhurst Station | Locale | 11 | Bergen | 40 49 00 N | 074 07 26 W |
| Lyndhurst United Methodist Church | Church | 41 | Bergen | 40 48 54 N | 074 07 30 W |
| Lynn Crest Elementary School | School | 30 | Middlesex | 40 35 20 N | 074 19 51 W |
| Lynn Woodoaks | Populated Place | 32 | Middlesex | 40 35 20 N | 074 19 60 W |
| Lyons | Populated Place | 91 | Somerset | 40 41 07 N | 074 32 50 W |
| Lyonsville | Populated Place | 233 | Morris | 40 57 24 N | 074 26 23 W |
| LZ 1 NLDC Heliport | Airport | 38 | Burlington | 39 53 24 N | 074 34 54 W |
| M Scott Carpenter Elementary School | School | 6 | Middlesex | 40 23 55 N | 074 20 12 W |
| MacAfee Elementary School | School | 37 | Somerset | 40 29 42 N | 074 29 56 W |
| Macanippuck Run | Stream | | Cumberland | 39 25 45 N | 075 20 57 W |
| MacArthur Manor | Populated Place | 4 | Middlesex | 40 27 30 N | 074 22 09 W |
| Macedonia | Populated Place | 26 | Monmouth | 40 17 10 N | 074 05 48 W |
| Macedonia Baptist Church | Church | 41 | Essex | 40 44 36 N | 074 12 27 W |
| Macedonia Baptist Church | Church | 40 | Ocean | 40 05 00 N | 074 12 47 W |
| Macedonia Church | Church | 40 | Somerset | 40 29 03 N | 074 28 54 W |
| Macedonia Church | Church | 30 | Somerset | 40 35 28 N | 074 36 51 W |
| Macedonia Church of God | Church | 41 | Passaic | 40 55 00 N | 074 09 27 W |
| Mack Trucks Helistop | Airport | 28 | Somerset | 40 34 38 N | 074 35 40 W |
| Mackay Campus Center | Building | 58 | Mercer | 40 20 39 N | 074 39 48 W |
| Mackay Park | Park | 2 | Bergen | 40 53 34 N | 073 58 53 W |
| Macks Bar | Bar | 77 | Warren | 40 51 12 N | 075 03 32 W |
| Macks Island | Island | 95 | Warren | 40 50 54 N | 075 04 35 W |
| MacLean House | Building | 62 | Mercer | 40 20 57 N | 074 39 37 W |
| Maclearie Park | Park | 3 | Monmouth | 40 10 45 N | 074 02 15 W |
| MacMillan Brook | Stream | | Bergen | 41 04 42 N | 074 11 44 W |
| MacMillan Helistop | Airport | 11 | Burlington | 40 01 13 N | 074 57 37 W |
| MacMillan Reservoir | Reservoir | 155 | Bergen | 41 05 00 N | 074 12 06 W |
| MacMillan Reservoir Dam | Dam | 155 | Bergen | 41 05 00 N | 074 12 06 W |
| Macopin | Populated Place | 305 | Passaic | 41 03 08 N | 074 23 20 W |
| Macopin Middle School | School | 41 | Passaic | 41 04 38 N | 074 23 01 W |
| Macopin Reservoir | Reservoir | 185 | Morris | 41 01 11 N | 074 24 11 W |
| Macopin Reservoir Dam | Dam | 185 | Passaic | 41 01 11 N | 074 24 11 W |
| Macopin River | Stream | | Passaic | 41 01 27 N | 074 24 25 W |
| Macphelah Cemetery | Cemetery | 13 | Hudson | 40 47 32 N | 074 01 35 W |
| Macs Brook | Stream | | Somerset | 40 34 48 N | 074 37 14 W |
| MacWilliams Stadium | Park | 3 | Middlesex | 40 30 06 N | 074 16 32 W |
| Mad Horse Creek | Stream | | Salem | 39 24 59 N | 075 27 07 W |
| Mad Horse Creek Fish and Wildlife Management Area | Park | 2 | Salem | 39 25 30 N | 075 26 29 W |
| Madden Field | Park | 41 | Union | 40 35 47 N | 074 16 25 W |
| Madeleine Mulford Girl Scout Camp | Locale | 273 | Sussex | 41 12 09 N | 074 46 23 W |
| Madison | Populated Place | 80 | Morris | 40 45 35 N | 074 25 02 W |
| Madison Area Branch Newark Public Library | Building | 41 | Essex | 40 43 23 N | 074 12 48 W |
| Madison Avenue Baptist Church | Church | 41 | Passaic | 40 54 36 N | 074 09 25 W |
| Madison Avenue Elementary School | School | 47 | Essex | 40 43 55 N | 074 13 43 W |
| Madison Avenue Park | Park | 41 | Union | 40 36 53 N | 074 17 34 W |
| Madison Avenue Presbyterian Church | Church | 41 | Passaic | 40 54 22 N | 074 09 25 W |
| Madison Avenue Presbyterian Church | Church | 12 | Union | 40 40 31 N | 074 12 18 W |
| Madison Elementary School | School | 63 | Essex | 40 43 35 N | 074 12 45 W |
| Madison Elementary School | School | 11 | Union | 40 36 35 N | 074 17 38 W |
| Madison Golf Course | Locale | 104 | Morris | 40 44 55 N | 074 25 40 W |
| Madison Heights | Populated Place | 110 | Morris | 40 45 13 N | 074 25 55 W |
| Madison High School | School | 78 | Morris | 40 46 14 N | 074 24 30 W |
| Madison Hill | Populated Place | 17 | Union | 40 36 40 N | 074 18 32 W |
| Madison House | Building | 41 | Morris | 40 45 53 N | 074 25 39 W |
| Madison Junior High School | School | 71 | Morris | 40 45 25 N | 074 24 35 W |
| Madison Park | Park | 41 | Hudson | 40 44 30 N | 074 02 18 W |
| Madison Park | Populated Place | 38 | Middlesex | 40 27 05 N | 074 18 29 W |
| Madison Park Elementary School | School | 38 | Middlesex | 40 27 07 N | 074 18 31 W |
| Madison Station | Locale | 77 | Morris | 40 45 25 N | 074 24 58 W |
| Madison-Monroe Elementary School | School | 7 | Union | 40 40 48 N | 074 12 07 W |
| Madisonville | Populated Place | 90 | Somerset | 40 43 10 N | 074 32 26 W |
| Madonna Roman Catholic Church | Church | 41 | Bergen | 40 51 07 N | 073 58 30 W |
| Magnolia | Populated Place | 24 | Atlantic | 39 35 20 N | 074 43 26 W |
| Magnolia | Populated Place | 18 | Burlington | 39 56 59 N | 074 39 39 W |
| Magnolia | Populated Place | 24 | Camden | 39 51 16 N | 075 02 21 W |
| Magnolia Lake | Reservoir | 1 | Cape May | 39 10 25 N | 074 44 11 W |
| Magnolia Lake Dam | Dam | 1 | Cape May | 39 10 25 N | 074 44 11 W |
| Magnolia School | School | 28 | Camden | 39 51 30 N | 075 02 01 W |
| Mahala F Atchinson Elementary School | School | 21 | Monmouth | 40 18 55 N | 074 05 29 W |
| Mahlon Dickerson County Reservation | Park | 325 | Morris | 40 59 45 N | 074 35 10 W |
| Mahola | Populated Place | 41 | Sussex | 41 02 08 N | 074 35 33 W |
| Mahoney Library | Building | 119 | Morris | 40 46 53 N | 074 26 10 W |
| Mahoneyville | Populated Place | 3 | Salem | 39 37 56 N | 075 30 35 W |
| Mahoras Brook | Stream | | Monmouth | 40 25 12 N | 074 08 14 W |
| Mahwah | Populated Place | 97 | Bergen | 41 05 19 N | 074 08 38 W |
| Mahwah High School | School | 41 | Bergen | 41 05 27 N | 074 09 31 W |
| Mahwah River | Stream | 80 | Bergen | 41 06 12 N | 074 09 21 W |
| Main Avenue Station Clifton Post Office | Post Office | 41 | Passaic | 40 52 40 N | 074 08 31 W |
| Main Channel | Channel | 0 | Cape May | 39 11 42 N | 074 41 35 W |
| Main Ditch | Canal | 0 | Gloucester | 39 51 02 N | 075 12 28 W |
| Main Hall | Building | 30 | Middlesex | 40 30 21 N | 074 21 54 W |