Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| J R Cotrell Farm (historical) | Locale | 37 | Middlesex | 40 23 12 N | 074 17 09 W |
| J Robin Farm (historical) | Locale | 37 | Monmouth | 40 23 27 N | 074 15 55 W |
| J Spencer Smith Elementary School | School | 40 | Bergen | 40 54 41 N | 073 57 27 W |
| J Stanley Tunney Bridge | Bridge | 7 | Ocean | 39 56 45 N | 074 06 08 W |
| Jack Pudding Branch | Stream | | Atlantic | 39 28 38 N | 074 40 18 W |
| Jacks Run | Stream | | Burlington | 39 59 33 N | 074 34 09 W |
| Jackson | Populated Place | 37 | Camden | 39 46 35 N | 074 51 45 W |
| Jackson Academy | School | 41 | Essex | 40 46 10 N | 074 12 52 W |
| Jackson Avenue Elementary School | School | 3 | Bergen | 40 51 52 N | 074 02 24 W |
| Jackson Brook | Stream | | Morris | 40 53 08 N | 074 34 03 W |
| Jackson Creek | Stream | | Atlantic | 39 22 01 N | 074 43 21 W |
| Jackson Hill | Summit | 45 | Burlington | 39 50 42 N | 074 49 23 W |
| Jackson Memorial High School | School | 35 | Ocean | 40 06 25 N | 074 20 42 W |
| Jackson Park | Park | 7 | Union | 40 39 07 N | 074 11 14 W |
| Jackson Run | Stream | | Cumberland | 39 25 56 N | 075 13 22 W |
| Jackson State Forest | Forest | 39 | Ocean | 40 06 14 N | 074 22 41 W |
| Jackson Street Bridge | Bridge | 0 | Hudson | 40 44 00 N | 074 09 19 W |
| Jackson Temple | Church | 6 | Bergen | 40 52 34 N | 074 02 47 W |
| Jackson Valley | Valley | | Warren | 40 46 29 N | 074 59 12 W |
| Jacksonburg | Populated Place | 120 | Warren | 40 59 30 N | 074 58 50 W |
| Jacksonburg Creek | Stream | | Warren | 40 58 45 N | 074 58 51 W |
| Jacksons Mills | Populated Place | 28 | Ocean | 40 08 52 N | 074 19 27 W |
| Jacksons Mills Dam | Dam | 28 | Ocean | 40 09 00 N | 074 19 34 W |
| Jacksons Mills Lake | Reservoir | 28 | Ocean | 40 09 00 N | 074 19 34 W |
| Jacksons Pond | Reservoir | 12 | Union | 40 37 42 N | 074 17 07 W |
| Jacksons Pond Dam | Dam | 12 | Union | 40 37 42 N | 074 17 07 W |
| Jacksonville | Populated Place | 20 | Burlington | 40 03 01 N | 074 45 49 W |
| Jacksonville | Populated Place | 99 | Morris | 40 57 09 N | 074 19 48 W |
| Jacobs Chapel | Church | 23 | Burlington | 39 55 46 N | 074 53 05 W |
| Jacobs Creek | Stream | | Cape May | 39 16 22 N | 074 42 16 W |
| Jacobs Creek | Stream | | Cumberland | 39 22 07 N | 075 23 38 W |
| Jacobs Creek | Stream | | Mercer | 40 16 40 N | 074 51 17 W |
| Jacobsen Park | Park | 1 | Ocean | 39 58 18 N | 074 04 22 W |
| Jacobstown | Populated Place | 54 | Burlington | 40 04 33 N | 074 34 60 W |
| Jacovy Creek | Channel | 0 | Cape May | 39 02 43 N | 074 47 57 W |
| Jade Run | Stream | | Burlington | 39 56 19 N | 074 45 06 W |
| Jadwin Gymnasium | Building | 23 | Mercer | 40 20 37 N | 074 38 55 W |
| Jadwin Hall | Building | 38 | Mercer | 40 20 42 N | 074 39 06 W |
| Jaggards Pond | Reservoir | 18 | Camden | 39 47 37 N | 075 00 46 W |
| Jaggards Pond Dam | Dam | 18 | Camden | 39 47 37 N | 075 00 46 W |
| Jakes Branch | Stream | | Ocean | 39 56 50 N | 074 11 47 W |
| Jam E-Masjid Islamic Center | Church | 121 | Morris | 40 53 58 N | 074 24 30 W |
| James A McFaul Environmental Center | School | 41 | Bergen | 41 00 30 N | 074 09 04 W |
| James Branch | Stream | | Atlantic | 39 24 10 N | 074 46 22 W |
| James Caldwell Elementary School | School | 41 | Union | 40 42 39 N | 074 18 53 W |
| James Caldwell High School | School | 69 | Essex | 40 50 32 N | 074 17 47 W |
| James Chapel | Church | 140 | Warren | 40 50 16 N | 074 56 27 W |
| James E Kirk Community Center | Building | 41 | Union | 40 39 24 N | 074 12 05 W |
| James F Murray Number 38 Elementary School | School | 10 | Hudson | 40 42 30 N | 074 05 28 W |
| James J Ferris High School | School | 41 | Hudson | 40 43 18 N | 074 03 08 W |
| James J Flynn Elementary School | School | 29 | Middlesex | 40 32 01 N | 074 17 05 W |
| James L Braddock North Hudson County Park | Park | 65 | Hudson | 40 48 08 N | 074 00 13 W |
| James Locuson School | School | 6 | Atlantic | 39 22 42 N | 074 33 25 W |
| James Locuson School | School | 7 | Atlantic | 39 22 42 N | 074 33 24 W |
| James Madison Intermediate Elementary School | School | 45 | Middlesex | 40 35 05 N | 074 21 10 W |
| James Madison Primary Elementary School | School | 49 | Middlesex | 40 35 10 N | 074 21 15 W |
| James McDivitt Elementary School | School | 11 | Middlesex | 40 24 37 N | 074 18 04 W |
| James Monroe Elementary School | School | 37 | Middlesex | 40 32 26 N | 074 19 52 W |
| James Park | Park | 86 | Morris | 40 45 43 N | 074 25 07 W |
| Jamesburg | Populated Place | 23 | Middlesex | 40 21 09 N | 074 26 25 W |
| Jamesburg County Park Conservation Area | Park | 22 | Middlesex | 40 23 12 N | 074 25 46 W |
| Jamesburg Gardens | Populated Place | 26 | Middlesex | 40 20 35 N | 074 25 14 W |
| Jamesburg Park | Populated Place | 31 | Middlesex | 40 22 47 N | 074 26 20 W |
| Janet Memorial Elizabeth Orphan Asylum (historical) | Building | 41 | Union | 40 40 45 N | 074 12 58 W |
| Janis E Dismus Middle School | School | 41 | Bergen | 40 54 19 N | 073 59 03 W |
| Janvier | Populated Place | 39 | Gloucester | 39 37 37 N | 075 01 03 W |
| Janvier Cemetery | Cemetery | 40 | Gloucester | 39 37 10 N | 075 01 35 W |
| Japanese Garden | Park | 40 | Ocean | 40 05 46 N | 074 13 43 W |
| Jaques Bridge | Locale | 37 | Burlington | 39 46 57 N | 074 52 41 W |
| Jaqui Dam | Dam | 116 | Morris | 40 49 28 N | 074 29 39 W |
| Jaqui Pond | Reservoir | 116 | Morris | 40 49 28 N | 074 29 39 W |
| Jarvis Sound | Bay | -3 | Cape May | 38 58 02 N | 074 52 04 W |
| Jarvis Sound Thorofare | Channel | 0 | Cape May | 38 58 38 N | 074 51 46 W |
| Jayness Brook | Stream | | Morris | 40 58 25 N | 074 37 50 W |
| Jays Pond | Reservoir | 197 | Morris | 40 58 02 N | 074 24 08 W |
| Jeesups Mill Lake | Lake | 8 | Gloucester | 39 46 52 N | 075 11 51 W |
| Jeffers Landing | Populated Place | -5 | Monmouth | 39 19 05 N | 074 39 07 W |
| Jefferson | Populated Place | 43 | Gloucester | 39 45 13 N | 075 12 43 W |
| Jefferson Elementary School | School | 39 | Bergen | 40 47 10 N | 074 08 22 W |
| Jefferson Elementary School | School | 13 | Bergen | 40 49 02 N | 074 07 17 W |
| Jefferson Elementary School | School | 36 | Bergen | 40 51 17 N | 074 05 60 W |
| Jefferson Elementary School | School | 33 | Bergen | 40 55 55 N | 073 59 12 W |
| Jefferson Elementary School | School | 41 | Essex | 40 50 26 N | 074 17 23 W |
| Jefferson Elementary School | School | 105 | Essex | 40 44 09 N | 074 16 39 W |
| Jefferson Elementary School | School | 59 | Hudson | 40 46 19 N | 074 01 34 W |
| Jefferson Elementary School | School | 231 | Morris | 40 51 27 N | 074 39 49 W |
| Jefferson Elementary School | School | 18 | Union | 40 36 17 N | 074 26 51 W |
| Jefferson Elementary School | School | 37 | Union | 40 38 13 N | 074 19 42 W |
| Jefferson Elementary School | School | 115 | Union | 40 42 23 N | 074 21 03 W |
| Jefferson Lake | Reservoir | 202 | Sussex | 40 55 35 N | 074 43 54 W |
| Jefferson Lake Dam | Dam | 201 | Sussex | 40 55 35 N | 074 43 55 W |
| Jefferson Park | Park | 9 | Union | 40 40 16 N | 074 12 30 W |
| Jefferson Park (subdivision) | Populated Place | 37 | Middlesex | 40 31 56 N | 074 22 05 W |
| Jefferson Plaza Shopping Center | Locale | 79 | Morris | 40 49 03 N | 074 26 36 W |
| Jefferson School | School | 24 | Mercer | 40 13 50 N | 074 45 31 W |
| Jefferson Township High School | School | 297 | Morris | 41 00 58 N | 074 33 09 W |
| Jefferson Township Middle School | School | 308 | Morris | 41 00 54 N | 074 33 14 W |
| Jehovah's Witness Kingdom Hall | Church | 348 | Warren | 41 59 07 N | 077 19 37 W |
| Jehovahs Witnesses Bible Hall | Church | 6 | Monmouth | 40 26 12 N | 074 11 60 W |
| Jemima Mount | Summit | 26 | Burlington | 39 42 41 N | 074 37 07 W |
| Jenkins | Populated Place | 13 | Burlington | 39 41 53 N | 074 31 36 W |
| Jenkins Channel | Channel | -9 | Cape May | 39 02 42 N | 074 48 44 W |
| Jenkins Chapel | Church | 14 | Burlington | 39 41 42 N | 074 31 42 W |
| Jenkins Neck | Cape | 12 | Burlington | 39 41 20 N | 074 32 01 W |
| Jenkins Point | Cape | 0 | Cape May | 39 03 03 N | 074 49 05 W |
| Jenkins Sound | Bay | 4 | Cape May | 39 03 32 N | 074 48 43 W |
| Jennings Creek | Stream | | Passaic | 41 09 44 N | 074 18 52 W |
| Jennings Lake | Lake | 18 | Burlington | 39 51 50 N | 074 53 46 W |
| Jennings Library | Building | 41 | Essex | 40 50 00 N | 074 16 18 W |
| Jenny Jump Brook | Stream | | Warren | 40 51 47 N | 074 58 58 W |