Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Union Senior High School | School | 41 | Union | 40 42 15 N | 074 17 02 W |
| Union Square | Populated Place | 8 | Union | 40 39 31 N | 074 12 09 W |
| Union Village | Populated Place | 71 | Union | 40 40 00 N | 074 27 20 W |
| Unionburg | Populated Place | 33 | Union | 40 42 19 N | 074 16 53 W |
| Unitarian Church In Summit | Church | 41 | Union | 40 43 08 N | 074 21 15 W |
| United Methodist Church of Summit | Church | 41 | Union | 40 43 06 N | 074 21 40 W |
| University Center | Building | 41 | Union | 40 40 40 N | 074 14 05 W |
| Vail-Deane School for Girls | School | 8 | Union | 40 40 35 N | 074 12 55 W |
| Valley Road Elementary School | School | 41 | Union | 40 37 34 N | 074 17 46 W |
| Vaughn Eames | Building | 41 | Union | 40 40 40 N | 074 13 52 W |
| Vauxhall | Populated Place | 58 | Union | 40 43 53 N | 074 16 59 W |
| Veteran's Field | Park | 41 | Union | 40 36 38 N | 074 16 52 W |
| Veteran's Memorial Library | Building | 41 | Union | 40 39 56 N | 074 15 54 W |
| Victor Mravlag Elementary School | School | 26 | Union | 40 40 22 N | 074 14 39 W |
| Walker Park | Park | 41 | Union | 40 39 58 N | 074 11 58 W |
| Wallace Chapel African Methodist Episcopal Zion Church | Church | 41 | Union | 40 42 50 N | 074 20 37 W |
| Walnut Avenue Elementary School | School | 41 | Union | 40 38 44 N | 074 18 19 W |
| Walter O Krumbiegel Elementary School | School | 21 | Union | 40 41 57 N | 074 13 23 W |
| Warinanco Park | Park | 12 | Union | 40 39 22 N | 074 14 30 W |
| Warners Station | Locale | 1 | Union | 40 35 52 N | 074 12 17 W |
| Washington Elementary School | School | 41 | Union | 40 43 35 N | 074 22 19 W |
| Washington Elementary School | School | 24 | Union | 40 36 24 N | 074 25 46 W |
| Washington Elementary School | School | 28 | Union | 40 38 54 N | 074 19 19 W |
| Washington Elementary School | School | 23 | Union | 40 39 03 N | 074 16 31 W |
| Washington Elementary School | School | 36 | Union | 40 39 40 N | 074 19 56 W |
| Washington Elementary School | School | 34 | Union | 40 40 54 N | 074 15 49 W |
| Washington Grade School (historical) | School | 6 | Union | 40 36 34 N | 074 16 10 W |
| Washington School | School | 55 | Union | 40 45 24 N | 074 22 23 W |
| Watchung Reservation | Park | 89 | Union | 40 42 04 N | 074 21 44 W |
| West Branch Elizabeth River | Stream | | Union | 40 41 30 N | 074 14 22 W |
| Westfield | Populated Place | 38 | Union | 40 39 32 N | 074 20 51 W |
| Westfield Airport (historical) | Airport | 41 | Union | 40 36 30 N | 074 19 04 W |
| Westfield Senior High School | School | 41 | Union | 40 38 40 N | 074 20 54 W |
| Westfield Station | Locale | 37 | Union | 40 38 58 N | 074 20 54 W |
| Westminster Presbyterian Church | Church | 41 | Union | 40 40 53 N | 074 13 03 W |
| Westminster Preschool | School | 41 | Union | 40 38 21 N | 074 22 56 W |
| Wheeler Park | Park | 7 | Union | 40 37 29 N | 074 14 53 W |
| Whiteman Hall | Building | 41 | Union | 40 40 36 N | 074 13 59 W |
| Wilday Middle School | School | 41 | Union | 40 38 36 N | 074 15 56 W |
| Wilkens Theatre | Building | 41 | Union | 40 40 44 N | 074 13 54 W |
| William F Halloran Elementary School | School | 5 | Union | 40 38 40 N | 074 12 33 W |
| William J McGinn Elementary School | School | 41 | Union | 40 38 22 N | 074 22 25 W |
| William Woodruff Elementary School | School | 41 | Union | 40 41 18 N | 074 26 58 W |
| Williams Field | Park | 3 | Union | 40 39 06 N | 074 12 43 W |
| Willis Hall | Building | 41 | Union | 40 40 45 N | 074 13 59 W |
| Willow Grove Union Chapel | Church | 41 | Union | 40 37 25 N | 074 21 03 W |
| Wilson Elementary School | School | 42 | Union | 40 39 45 N | 074 20 38 W |
| Wilson Park | Park | 15 | Union | 40 38 12 N | 074 16 02 W |
| Wilson Park | Park | 9 | Union | 40 41 15 N | 074 12 17 W |
| Winfield | Populated Place | 18 | Union | 40 38 33 N | 074 17 08 W |
| Winfield Elementary School | School | 18 | Union | 40 38 07 N | 074 17 15 W |
| Winfield Scott Elementary School | School | 6 | Union | 40 39 53 N | 074 12 35 W |
| WJDM-AM (Elizabeth) | Tower | 6 | Union | 40 38 56 N | 074 14 31 W |
| WJDM-AM (Elizabeth) | Tower | 16 | Union | 40 41 25 N | 074 15 39 W |
| WKNJ-FM (Union Township) | Tower | 13 | Union | 40 40 35 N | 074 14 01 W |
| WNJR-AM (Newark) | Tower | 25 | Union | 40 42 32 N | 074 14 30 W |
| Woodland Elementary School | School | 41 | Union | 40 37 25 N | 074 24 11 W |
| Woodland Park | Populated Place | 144 | Union | 40 42 10 N | 074 22 44 W |
| Woodrow Wilson Elementary School | School | 7 | Union | 40 39 08 N | 074 13 17 W |
| Agros Lake | Lake | 174 | Warren | 40 55 48 N | 075 00 04 W |
| Air-List-Ads Airport | Airport | 106 | Warren | 40 41 44 N | 075 07 55 W |
| Allamuchy | Populated Place | 188 | Warren | 40 55 18 N | 074 48 37 W |
| Allamuchy Pond | Reservoir | 238 | Warren | 40 54 50 N | 074 48 38 W |
| Allamuchy Pond Dam | Dam | 238 | Warren | 40 54 50 N | 074 48 38 W |
| Allens Mills | Populated Place | 175 | Warren | 40 44 24 N | 075 07 07 W |
| Alpha | Populated Place | 95 | Warren | 40 40 01 N | 075 09 27 W |
| Alphano | Populated Place | 168 | Warren | 40 54 08 N | 074 51 42 W |
| Anderson | Populated Place | 141 | Warren | 40 46 14 N | 074 55 09 W |
| Anderson Hall | Building | 177 | Warren | 40 50 49 N | 074 50 01 W |
| Angens Pond | Reservoir | 269 | Warren | 40 45 57 N | 075 02 14 W |
| Angens Pond Dam | Dam | 269 | Warren | 40 45 57 N | 075 02 14 W |
| Asbury | Populated Place | 103 | Warren | 40 41 45 N | 075 00 37 W |
| Auxiliary Reservoir Dam | Dam | 263 | Warren | 41 00 48 N | 075 01 05 W |
| Baldpate Mountain | Summit | 354 | Warren | 40 49 00 N | 074 54 07 W |
| Barber School | School | 113 | Warren | 40 41 55 N | 075 10 60 W |
| Bass Lake | Reservoir | 226 | Warren | 41 01 23 N | 074 57 09 W |
| Bass Lake Dam | Dam | 226 | Warren | 41 01 23 N | 074 57 09 W |
| Bass Lake Falls | Falls | 217 | Warren | 41 01 23 N | 074 57 11 W |
| Bear Brook | Stream | | Warren | 40 57 05 N | 074 52 33 W |
| Bear Creek | Stream | | Warren | 40 54 56 N | 074 52 44 W |
| Beattystown | Populated Place | 148 | Warren | 40 48 47 N | 074 50 35 W |
| Beaver Brook | Stream | | Warren | 40 50 29 N | 075 03 02 W |
| Beers School | School | 63 | Warren | 40 41 01 N | 075 11 08 W |
| Belvidere | Populated Place | 78 | Warren | 40 49 47 N | 075 04 40 W |
| Blair Academy | School | 121 | Warren | 40 59 11 N | 074 57 51 W |
| Blair Creek | Stream | | Warren | 40 58 54 N | 074 57 36 W |
| Blair Lake | Reservoir | 110 | Warren | 40 59 02 N | 074 57 37 W |
| Blair Lake Dam | Dam | 113 | Warren | 40 59 02 N | 074 57 37 W |
| Blairstown | Populated Place | 108 | Warren | 40 58 58 N | 074 57 38 W |
| Blairstown Airport | Airport | 114 | Warren | 40 58 16 N | 074 59 49 W |
| Blairstown Ambulance Corps Building | Building | 102 | Warren | 40 58 55 N | 074 57 21 W |
| Blairstown Community Center | Building | 106 | Warren | 40 58 58 N | 074 57 25 W |
| Blairstown First Presbyterian Church | Church | 108 | Warren | 40 58 59 N | 074 57 29 W |
| Blairstown Police Department | Building | 104 | Warren | 40 58 58 N | 074 57 19 W |
| Blairstown Post Office | Post Office | 107 | Warren | 40 58 57 N | 074 57 41 W |
| Blairstown Station | Locale | 156 | Warren | 40 58 09 N | 074 57 18 W |
| Blairstown Township Elementary School | School | 105 | Warren | 40 58 57 N | 074 57 14 W |
| Blairstown Township Municipal Building | Building | 116 | Warren | 40 59 23 N | 074 58 24 W |
| Blairstown Volunteer Fire Company | Building | 105 | Warren | 40 58 57 N | 074 57 21 W |
| Borough of Alpha | Civil | 80 | Warren | 40 39 35 N | 075 09 26 W |
| Borough of Washington | Civil | 140 | Warren | 40 45 34 N | 074 58 57 W |
| Brainards | Populated Place | 81 | Warren | 40 46 25 N | 075 10 11 W |
| Brainards School | School | 100 | Warren | 40 46 12 N | 075 09 58 W |
| Brass Castle | Populated Place | 144 | Warren | 40 45 53 N | 075 00 40 W |
| Brass Castle Creek | Stream | | Warren | 40 44 43 N | 075 00 48 W |
| Bresinger School | School | 95 | Warren | 40 40 55 N | 075 10 14 W |
| Bridgeville | Populated Place | 109 | Warren | 40 50 12 N | 075 01 34 W |
| Bridgeville Station | Locale | 117 | Warren | 40 50 31 N | 075 01 23 W |
| Broadway | Populated Place | 109 | Warren | 40 43 55 N | 075 03 06 W |
| Brookaloo Swamp | Stream | | Warren | 40 54 09 N | 074 59 45 W |