Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Viers Mill Elementary School | School | 100 | Montgomery | 39 02 53 N | 077 05 06 W |
| Viers Mill Village | Populated Place | 114 | Montgomery | 39 03 21 N | 077 04 55 W |
| Wades Island | Island | 14 | Montgomery | 38 58 13 N | 077 09 46 W |
| Walkers Choice | Populated Place | 126 | Montgomery | 39 09 50 N | 077 12 20 W |
| Walkers Run | Stream | | Montgomery | 39 09 53 N | 077 12 37 W |
| Wall Park | Park | 118 | Montgomery | 39 02 43 N | 077 07 10 W |
| Walnut Hill | Populated Place | 153 | Montgomery | 39 07 47 N | 077 10 49 W |
| Walnut Hills Shopping Center | Locale | 154 | Montgomery | 39 07 39 N | 077 11 00 W |
| Walnut Woods | Populated Place | 109 | Montgomery | 39 03 05 N | 077 08 55 W |
| Walt Whitman High School | School | 99 | Montgomery | 38 58 51 N | 077 07 38 W |
| Walter Johnson High School | School | 115 | Montgomery | 39 01 32 N | 077 07 48 W |
| Walter Reed Forest Glen Heliport | Airport | 101 | Montgomery | 39 00 29 N | 077 03 18 W |
| Walter Reed Military Police Station | Building | 99 | Montgomery | 39 00 35 N | 077 03 14 W |
| Walton Pond | Reservoir | 74 | Montgomery | 39 05 57 N | 077 25 56 W |
| Ward Farm Estates | Populated Place | 147 | Montgomery | 39 13 36 N | 077 10 56 W |
| Waredaca Farm Airport | Airport | 163 | Montgomery | 39 13 50 N | 077 05 00 W |
| Waring (historical) | Populated Place | 115 | Montgomery | 39 09 36 N | 077 15 05 W |
| Warner Memorial Presbyterian Church | Church | 86 | Montgomery | 39 01 21 N | 077 04 33 W |
| Warren Church | Church | 123 | Montgomery | 39 09 50 N | 077 28 27 W |
| Washington Adventist Hospital | Hospital | 71 | Montgomery | 38 59 10 N | 077 00 06 W |
| Washington Center | Locale | 143 | Montgomery | 39 06 53 N | 077 12 04 W |
| Washington Christian Elementary School | School | 120 | Montgomery | 39 02 42 N | 077 02 22 W |
| Washington Country Club (historical) | Locale | 149 | Montgomery | 39 06 48 N | 077 11 31 W |
| Washington Grove | Populated Place | 155 | Montgomery | 39 08 23 N | 077 10 31 W |
| Washington Grove Elementary School | School | 158 | Montgomery | 39 07 57 N | 077 10 40 W |
| Washington Grove Methodist Church | Church | 155 | Montgomery | 39 08 27 N | 077 10 35 W |
| Washington Grove Post Office | Post Office | 158 | Montgomery | 39 08 20 N | 077 10 47 W |
| Washington Grove Railroad Station | Building | 160 | Montgomery | 39 08 08 N | 077 10 26 W |
| Washington Grove Town Hall | Building | 154 | Montgomery | 39 08 25 N | 077 10 33 W |
| Washington Hebrew Congreational Julia Bindman Center | Church | 122 | Montgomery | 39 03 00 N | 077 11 24 W |
| Washington Mormon Temple | Church | 90 | Montgomery | 39 00 50 N | 077 03 56 W |
| Washington National Pike Industrial Park | Locale | 127 | Montgomery | 39 05 40 N | 077 10 47 W |
| Washington Science Center | Locale | 110 | Montgomery | 39 03 04 N | 077 07 32 W |
| Washington Square Park | Park | 163 | Montgomery | 39 08 43 N | 077 10 14 W |
| Washington Waldorf School | School | 86 | Montgomery | 38 57 08 N | 077 07 18 W |
| Waters Landing Elementary School | School | 145 | Montgomery | 39 11 19 N | 077 16 09 W |
| Watkins Island | Island | 51 | Montgomery | 39 02 32 N | 077 16 44 W |
| Watkins Mill | Populated Place | 133 | Montgomery | 39 10 55 N | 077 12 49 W |
| Watkins Mill Elementary School | School | 111 | Montgomery | 39 10 01 N | 077 12 39 W |
| Watkins Mill High School | School | 139 | Montgomery | 39 11 01 N | 077 12 54 W |
| Watkins Overlook | Populated Place | 181 | Montgomery | 39 14 13 N | 077 13 39 W |
| Watts Branch | Stream | | Montgomery | 39 02 23 N | 077 15 36 W |
| Waverly Park | Park | 87 | Montgomery | 39 02 23 N | 077 05 43 W |
| Wayside Elementary School | School | 108 | Montgomery | 39 02 51 N | 077 12 22 W |
| WCTN-AM (Potomac-Cabin John) | Tower | 104 | Montgomery | 39 02 12 N | 077 12 08 W |
| Weller Road Elementary School | School | 125 | Montgomery | 39 03 54 N | 077 04 00 W |
| Welsh Park | Park | 131 | Montgomery | 39 05 22 N | 077 09 36 W |
| Wesley Grove United Methodist Church | Church | 183 | Montgomery | 39 14 39 N | 077 11 16 W |
| Wesmond (subdivision) | Populated Place | 111 | Montgomery | 39 08 27 N | 077 24 06 W |
| West Bethesda Post Office | Post Office | 80 | Montgomery | 39 00 45 N | 077 09 35 W |
| West Chevy Chase Heights | Populated Place | 98 | Montgomery | 38 59 33 N | 077 05 14 W |
| West End Park | Populated Place | 133 | Montgomery | 39 05 09 N | 077 09 54 W |
| West Fairland Park | Park | 118 | Montgomery | 39 04 32 N | 076 57 57 W |
| West Riding (subdivision) | Populated Place | 133 | Montgomery | 39 08 06 N | 077 14 03 W |
| Westboro | Populated Place | 102 | Montgomery | 38 59 21 N | 077 05 29 W |
| Westbrook Elementary School | School | 72 | Montgomery | 38 57 29 N | 077 06 09 W |
| Westerly (subdivision) | Populated Place | 119 | Montgomery | 39 08 15 N | 077 24 49 W |
| Western Junior High School | School | 79 | Montgomery | 38 57 37 N | 077 06 34 W |
| Westgate | Populated Place | 85 | Montgomery | 38 57 18 N | 077 06 07 W |
| Westland Middle School | School | 57 | Montgomery | 38 57 30 N | 077 06 35 W |
| Westmore | Populated Place | 140 | Montgomery | 39 05 47 N | 077 09 12 W |
| Westmoreland Circle | Locale | 87 | Montgomery | 38 56 55 N | 077 06 03 W |
| Westmoreland Hills | Populated Place | 60 | Montgomery | 38 56 56 N | 077 06 20 W |
| Westover Elementary School | School | 108 | Montgomery | 39 04 28 N | 077 01 05 W |
| Westwood | Populated Place | 86 | Montgomery | 38 57 58 N | 077 06 31 W |
| Wexford | Populated Place | 178 | Montgomery | 39 11 55 N | 077 14 29 W |
| WGMS-AM (Bethesda) | Tower | 101 | Montgomery | 39 02 07 N | 077 10 10 W |
| WGMS-AM (Bethesda) | Tower | 128 | Montgomery | 39 08 03 N | 077 18 13 W |
| WGTS-FM (Takoma Park) | Tower | 72 | Montgomery | 38 59 12 N | 077 00 03 W |
| Wheaton | Populated Place | 142 | Montgomery | 39 02 23 N | 077 03 19 W |
| Wheaton Community Center | Building | 138 | Montgomery | 39 02 56 N | 077 03 05 W |
| Wheaton Crest | Populated Place | 119 | Montgomery | 39 02 55 N | 077 03 24 W |
| Wheaton Forest | Populated Place | 116 | Montgomery | 39 02 17 N | 077 02 50 W |
| Wheaton High School | School | 119 | Montgomery | 39 03 40 N | 077 03 58 W |
| Wheaton Hills | Populated Place | 117 | Montgomery | 39 02 44 N | 077 03 37 W |
| Wheaton Library | Building | 137 | Montgomery | 39 02 51 N | 077 03 05 W |
| Wheaton Metro Station | Locale | 135 | Montgomery | 39 02 21 N | 077 03 04 W |
| Wheaton Plaza Shopping Center | Locale | 135 | Montgomery | 39 02 11 N | 077 03 19 W |
| Wheaton Police Department District 4 | Building | | Montgomery | 39 06 26 N | 077 05 23 W |
| Wheaton Post Office | Post Office | 131 | Montgomery | 39 02 32 N | 077 02 52 W |
| Wheaton Regional Library | Building | 137 | Montgomery | 39 02 51 N | 077 03 05 W |
| Wheaton Regional Park | Park | 122 | Montgomery | 39 03 12 N | 077 01 55 W |
| Wheaton Regional Park Dam | Dam | 116 | Montgomery | 39 03 30 N | 077 02 29 W |
| Wheaton Rescue Fire Station Company 2 | Building | 144 | Montgomery | 39 02 33 N | 077 03 09 W |
| Wheaton Seventh Day Adventist Church | Church | 131 | Montgomery | 39 05 24 N | 077 03 39 W |
| Wheaton Volunteer Rescue Squad | Building | | Montgomery | 39 04 22 N | 077 05 30 W |
| Wheaton Woods | Populated Place | 102 | Montgomery | 39 04 19 N | 077 05 04 W |
| Wheaton Woods Elementary School | School | 96 | Montgomery | 39 04 06 N | 077 05 23 W |
| Wheaton Woods Park | Park | 105 | Montgomery | 39 04 04 N | 077 05 34 W |
| Wheaton-Glenmont Police Station | Building | 134 | Montgomery | 39 03 30 N | 077 02 56 W |
| Whetstone | Populated Place | 133 | Montgomery | 39 10 05 N | 077 11 39 W |
| Whetstone Elementary School | School | 135 | Montgomery | 39 10 18 N | 077 11 50 W |
| Whetstone Run | Stream | | Montgomery | 39 10 03 N | 077 13 35 W |
| White Flint Country Club (historical) | Locale | 105 | Montgomery | 39 02 30 N | 077 06 26 W |
| White Flint Industrial Park | Locale | 111 | Montgomery | 39 02 39 N | 077 06 30 W |
| White Flint Mall Shopping Center | Locale | 105 | Montgomery | 39 02 30 N | 077 06 26 W |
| White Flint Metro Station | Locale | 123 | Montgomery | 39 02 52 N | 077 06 42 W |
| White Flint Plaza Shopping Center | Locale | 111 | Montgomery | 39 02 40 N | 077 06 14 W |
| White Oak | Populated Place | 113 | Montgomery | 39 02 23 N | 076 59 35 W |
| White Oak Library | Building | 115 | Montgomery | 39 02 53 N | 076 59 32 W |
| White Oak Middle School | School | 120 | Montgomery | 39 03 23 N | 076 59 43 W |
| White Oak Shopping Center | Locale | 115 | Montgomery | 39 02 31 N | 076 59 21 W |
| Whitehall Manor | Populated Place | 107 | Montgomery | 38 58 57 N | 077 06 36 W |
| Whites Ferry | Locale | 60 | Montgomery | 39 09 17 N | 077 31 09 W |
| Whites Ford | Crossing | 59 | Montgomery | 39 11 39 N | 077 28 26 W |
| Whittier Woods Elementary School (historical) | School | 105 | Montgomery | 38 58 57 N | 077 07 36 W |
| Wickford | Populated Place | 103 | Montgomery | 39 02 14 N | 077 06 29 W |
| Widewater | Channel | 35 | Montgomery | 38 59 03 N | 077 14 08 W |
| Wilber | Populated Place | 189 | Montgomery | 39 12 50 N | 077 17 54 W |
| Wildcat Branch | Stream | | Montgomery | 39 16 40 N | 077 19 18 W |