Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Jones Creek | Stream | | Cape May | 38 59 16 N | 074 52 21 W |
| Jones Island | Island | 3 | Cumberland | 39 18 23 N | 075 12 60 W |
| Jones Lake | Lake | 36 | Gloucester | 39 44 30 N | 075 01 20 W |
| Jones Mill | Populated Place | 23 | Burlington | 39 47 47 N | 074 31 37 W |
| Jones Mill | Populated Place | 6 | Cumberland | 39 19 16 N | 074 56 28 W |
| Jones Park | Park | 41 | Hudson | 40 43 41 N | 074 03 02 W |
| Jones Point | Cape | 4 | Monmouth | 40 22 00 N | 074 03 48 W |
| Jones Siding | Locale | 38 | Monmouth | 40 14 28 N | 074 14 50 W |
| Jones Tide Pond | Bay | -3 | Ocean | 40 02 16 N | 074 03 43 W |
| Jordan Brook | Stream | | Bergen | 40 56 53 N | 074 06 05 W |
| Jordan Road School | School | 7 | Atlantic | 39 19 12 N | 074 36 26 W |
| Jordan Road School | School | 7 | Atlantic | 39 19 11 N | 074 36 24 W |
| Jordantown | Populated Place | 13 | Camden | 39 57 51 N | 075 02 15 W |
| Jordantown Cemetery | Cemetery | 20 | Salem | 39 42 37 N | 075 22 24 W |
| Joseph C Caruso Elementary School | School | 3 | Monmouth | 40 26 39 N | 074 08 02 W |
| Joseph E Soehl Middle School | School | 41 | Union | 40 38 11 N | 074 15 17 W |
| Joseph F Brandt Middle School | School | 3 | Hudson | 40 44 53 N | 074 01 50 W |
| Joseph H Brensinger Number 17 Elementary School | School | 15 | Hudson | 40 43 35 N | 074 04 30 W |
| Joseph J Catena Elementary School | School | 55 | Monmouth | 40 15 48 N | 074 14 24 W |
| Joseph Marin Field | Park | 41 | Hudson | 40 45 58 N | 074 02 16 W |
| Joseph Medwick Park | Park | 7 | Middlesex | 40 35 58 N | 074 14 17 W |
| Joseph R Bolger Middle School | School | 4 | Monmouth | 40 26 13 N | 074 07 41 W |
| Josh Creek | Stream | | Cape May | 39 04 12 N | 074 48 15 W |
| Joshua Branch | Stream | | Cumberland | 39 20 53 N | 075 05 37 W |
| Jotham W Wakeman Number 6 Elementary School | School | 31 | Hudson | 40 44 11 N | 074 03 18 W |
| Journal Square | Locale | 17 | Hudson | 40 43 57 N | 074 03 43 W |
| Journal Square Station | Locale | 28 | Hudson | 40 43 52 N | 074 03 46 W |
| Journal Square Transport Center | Building | 41 | Hudson | 40 43 55 N | 074 03 43 W |
| Joyce Kilmer Elementary School | School | 41 | Bergen | 41 05 21 N | 074 09 43 W |
| Joyce Kilmer Elementary School | School | 17 | Middlesex | 40 27 06 N | 074 26 26 W |
| Jubilee Hall | Building | 41 | Essex | 40 44 35 N | 074 14 54 W |
| Judas Creek | Stream | | Monmouth | 40 07 28 N | 074 02 34 W |
| Judies Creek | Stream | | Ocean | 39 33 09 N | 074 24 07 W |
| Jug Creek | Stream | | Cape May | 39 04 27 N | 074 46 53 W |
| Jugtown Mountain Airport | Airport | 236 | Hunterdon | 40 38 00 N | 075 03 57 W |
| Julia A Barnes Number 12 Elementary School | School | 19 | Hudson | 40 43 07 N | 074 04 13 W |
| Julia A Traphagen Elementary School | School | 41 | Bergen | 41 00 58 N | 074 06 36 W |
| Julian Station | Locale | 6 | Union | 40 40 03 N | 074 13 01 W |
| Juliustown | Populated Place | 31 | Burlington | 40 00 48 N | 074 40 08 W |
| Jumbo | Populated Place | 3 | Salem | 39 46 23 N | 075 23 56 W |
| Jumping Brook | Stream | | Burlington | 40 03 06 N | 074 32 42 W |
| Jumping Brook | Stream | | Monmouth | 40 11 29 N | 074 03 33 W |
| Jumping Brook Dam | Dam | 5 | Monmouth | 40 12 12 N | 074 03 55 W |
| Jumping Brook Golf Club | Locale | 36 | Monmouth | 40 13 02 N | 074 04 55 W |
| Jumping Brook Reservoir | Reservoir | 12 | Monmouth | 40 12 13 N | 074 03 59 W |
| Junior High School Number 1 | School | 29 | Mercer | 40 13 55 N | 074 45 36 W |
| Junior High School Number 5 | School | 21 | Mercer | 40 13 33 N | 074 45 46 W |
| Jutland | Populated Place | 103 | Hunterdon | 40 37 22 N | 074 57 52 W |
| Jutland Dam | Dam | 85 | Hunterdon | 40 37 32 N | 074 57 11 W |
| Jutland Lake | Reservoir | 85 | Hunterdon | 40 37 32 N | 074 57 11 W |
| Jutland School (historical) | School | 105 | Hunterdon | 40 37 19 N | 074 57 55 W |
| Kaighn Point | Cape | 2 | Camden | 39 55 36 N | 075 07 50 W |
| Kakeout Dam | Dam | 206 | Morris | 40 59 24 N | 074 21 59 W |
| Kakeout Reservoir | Reservoir | 196 | Morris | 40 59 32 N | 074 21 51 W |
| Kalarama | Populated Place | 121 | Warren | 40 57 57 N | 074 59 32 W |
| Kalibar Temple | Church | 41 | Passaic | 40 54 30 N | 074 10 20 W |
| Kamp Kalmia | Locale | 125 | Warren | 40 59 27 N | 074 58 01 W |
| Kampe | Populated Place | 397 | Sussex | 41 10 01 N | 074 27 23 W |
| Kandle Lake | Reservoir | 31 | Gloucester | 39 43 49 N | 075 05 17 W |
| Kanouse Brook | Stream | | Passaic | 41 02 25 N | 074 26 06 W |
| Kanouse Mountain | Summit | 361 | Passaic | 41 02 30 N | 074 25 19 W |
| Karrsville | Populated Place | 163 | Warren | 40 48 33 N | 074 55 56 W |
| Kates Creek Meadow | Lake | 0 | Salem | 39 37 34 N | 075 28 07 W |
| Katherine D Malone Elementary School | School | 232 | Morris | 40 57 56 N | 074 29 33 W |
| Kawameeh Middle School | School | 15 | Union | 40 41 32 N | 074 15 38 W |
| Kawameeh Park | Park | 16 | Union | 40 41 30 N | 074 15 48 W |
| Kay Branch | Stream | | Camden | 39 43 51 N | 074 57 02 W |
| Kay Environmental Education Center | School | 41 | Morris | 40 45 50 N | 074 42 44 W |
| Kay Gardens | Populated Place | 5 | Salem | 39 44 38 N | 075 25 11 W |
| Kay Pond | Lake | 1 | Cape May | 39 03 36 N | 074 53 30 W |
| Kealy School | School | 1 | Hudson | 40 44 34 N | 074 02 07 W |
| Kean University of New Jersey | School | 15 | Union | 40 40 46 N | 074 14 08 W |
| Kean University of New Jersey East Campus | School | 41 | Union | 40 40 48 N | 074 13 27 W |
| Keansburg | Populated Place | 3 | Monmouth | 40 26 30 N | 074 07 48 W |
| Keansburg Fire Station Number 1 | Building | 2 | Monmouth | 40 26 37 N | 074 07 48 W |
| Keansburg High School | School | 3 | Monmouth | 40 26 22 N | 074 07 26 W |
| Keansburg Post Office | Post Office | 2 | Monmouth | 40 26 38 N | 074 07 45 W |
| Kearney Post Office | Post Office | 41 | Hudson | 40 46 17 N | 074 08 47 W |
| Kearny | Populated Place | 32 | Hudson | 40 46 06 N | 074 08 44 W |
| Kearny Bible Chapel | Church | 41 | Hudson | 40 46 02 N | 074 08 58 W |
| Kearny Generating Station | Building | 41 | Hudson | 40 44 14 N | 074 05 46 W |
| Kearny Helistop | Airport | 0 | Hudson | 40 44 13 N | 074 05 47 W |
| Kearny High School | School | 31 | Hudson | 40 45 43 N | 074 08 49 W |
| Kearny Playground | Park | 4 | Hudson | 40 45 53 N | 074 08 09 W |
| Kearny Plaza Shopping Center | Locale | 41 | Hudson | 40 45 39 N | 074 09 29 W |
| Kearny Point | Cape | 2 | Hudson | 40 43 33 N | 074 06 41 W |
| Kearny Point Reach | Channel | 4 | Essex | 40 42 56 N | 074 07 20 W |
| Kearny Reach | Channel | 0 | Essex | 40 45 30 N | 074 09 50 W |
| Keasbey | Populated Place | 11 | Middlesex | 40 31 00 N | 074 18 19 W |
| Keasbey Sewage Disposal Plant | Locale | 7 | Middlesex | 40 30 53 N | 074 18 09 W |
| Keasbeys Creek | Stream | | Salem | 39 34 33 N | 075 27 27 W |
| Keasby Reach | Channel | 2 | Middlesex | 40 30 42 N | 074 17 56 W |
| Keller Pond | Reservoir | 331 | Sussex | 41 18 06 N | 074 43 27 W |
| Keller Pond Dam | Dam | 331 | Sussex | 41 18 06 N | 074 43 27 W |
| Kellogg Park | Park | 8 | Union | 40 40 52 N | 074 12 12 W |
| Kells Pond | Reservoir | 101 | Bergen | 41 01 50 N | 074 10 36 W |
| Kelly Dam | Dam | 5 | Salem | 39 40 05 N | 075 24 19 W |
| Kelly Point | Cape | 0 | Salem | 39 38 43 N | 075 32 31 W |
| Kelly Pond | Reservoir | 5 | Salem | 39 40 05 N | 075 24 19 W |
| Kemble Mountain | Summit | 165 | Morris | 40 47 18 N | 074 29 46 W |
| Ken Lockwood Gorge Wildlife Management Area | Park | 130 | Hunterdon | 40 41 45 N | 074 52 19 W |
| Kendall Hall | Building | 40 | Mercer | 40 16 13 N | 074 46 46 W |
| Kendall Park | Populated Place | 56 | Middlesex | 40 25 15 N | 074 33 39 W |
| Kendles Run | Stream | | Burlington | 40 00 30 N | 074 53 44 W |
| Kenilworth | Populated Place | 32 | Union | 40 40 35 N | 074 17 27 W |
| Kenilworth Lake | Reservoir | 25 | Burlington | 39 50 45 N | 074 54 52 W |
| Kenilworth Lake Dam | Dam | 25 | Burlington | 39 50 45 N | 074 54 52 W |
| Kenilworth Post Office | Post Office | 41 | Union | 40 40 37 N | 074 17 11 W |
| Kenilworth Public Library | Building | 41 | Union | 40 40 35 N | 074 17 24 W |
| Kennedy Elementary School | School | 238 | Morris | 40 50 45 N | 074 39 26 W |