Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Forest Hills | Populated Place | 193 | Washington | 39 41 07 N | 077 43 04 W |
| Forest Park | Populated Place | 341 | Washington | 39 42 10 N | 078 17 58 W |
| Forge Hill Estates | Populated Place | 153 | Washington | 39 27 02 N | 077 44 57 W |
| Forsythe | Populated Place | 187 | Washington | 39 40 35 N | 077 59 16 W |
| Fort Duncan (historical) | Military (Historical) | 193 | Washington | 39 20 30 N | 077 45 01 W |
| Fort Frederick (historical) | Military (Historical) | 144 | Washington | 39 36 37 N | 078 00 13 W |
| Fort Frederick State Park | Park | 143 | Washington | 39 36 36 N | 078 00 12 W |
| Fort Tonoloy State Park | Park | 157 | Washington | 39 41 45 N | 078 11 59 W |
| Fortney Mobile Home Park | Populated Place | 200 | Washington | 39 42 19 N | 077 43 07 W |
| Fountain Head | Populated Place | 187 | Washington | 39 40 09 N | 077 42 47 W |
| Fountain Head Country Club | Locale | 189 | Washington | 39 40 31 N | 077 42 58 W |
| Fountain Head Heights | Populated Place | 178 | Washington | 39 40 26 N | 077 42 26 W |
| Fountain Rock School | School | 161 | Washington | 39 34 17 N | 077 46 22 W |
| Fountaindale School | School | 176 | Washington | 39 40 06 N | 077 43 05 W |
| Four Locks | Populated Place | 112 | Washington | 39 36 56 N | 077 56 50 W |
| Four Locks Picnic Area | Locale | 112 | Washington | 39 36 53 N | 077 56 49 W |
| Four Locks Ranger Station | Locale | 122 | Washington | 39 36 55 N | 077 56 57 W |
| Frederick Manor (subdivision) | Populated Place | 156 | Washington | 39 37 47 N | 077 43 02 W |
| Friendship Park | Populated Place | 177 | Washington | 39 36 47 N | 077 46 08 W |
| Frog Hollow | Valley | | Washington | 39 23 21 N | 077 43 32 W |
| Full Gospel Assembly of God Church | Church | 145 | Washington | 39 42 10 N | 078 10 52 W |
| Funkhouser Park | Park | 152 | Washington | 39 38 35 N | 077 42 16 W |
| Funkstown | Populated Place | 151 | Washington | 39 36 32 N | 077 42 16 W |
| Funkstown Community Park | Park | 157 | Washington | 39 36 23 N | 077 43 12 W |
| Funkstown Elementary School | School | 164 | Washington | 39 36 37 N | 077 41 54 W |
| Funkstown Post Office | Post Office | 149 | Washington | 39 36 35 N | 077 42 29 W |
| Funkstown Public Cemetery | Cemetery | 148 | Washington | 39 36 28 N | 077 42 37 W |
| Funkstown Public School (historical) | School | 149 | Washington | 39 36 38 N | 077 42 24 W |
| Funkstown Town Hall | Building | 153 | Washington | 39 36 33 N | 077 42 24 W |
| Funkstown Volunteer Fire Company 10 | Building | | Washington | 40 01 02 N | 078 11 06 W |
| Gapland | Populated Place | 189 | Washington | 39 24 10 N | 077 39 37 W |
| Gapland Post Office | Post Office | 204 | Washington | 39 24 21 N | 077 39 37 W |
| Gardenspot | Populated Place | 183 | Washington | 39 41 17 N | 077 45 09 W |
| Garretts Mill | Populated Place | 128 | Washington | 39 21 08 N | 077 41 04 W |
| Gathland State Park | Park | 291 | Washington | 39 24 13 N | 077 38 28 W |
| Gay Street Brethren Church | Church | 167 | Washington | 39 36 54 N | 077 46 18 W |
| Gillians Knob | Summit | 479 | Washington | 39 41 06 N | 077 57 02 W |
| Glen Afton Spring | Spring | 364 | Washington | 39 42 54 N | 077 30 40 W |
| Golden Fleece Estates | Populated Place | 201 | Washington | 39 41 49 N | 078 06 44 W |
| Good Acres | Populated Place | 189 | Washington | 39 40 55 N | 077 41 54 W |
| Grace Brethren Church | Church | 164 | Washington | 39 37 36 N | 077 43 43 W |
| Grace Presbyterian Church | Church | 136 | Washington | 39 41 55 N | 078 10 37 W |
| Grace United Brethren Church (historical) | Church | 182 | Washington | 39 39 00 N | 077 43 45 W |
| Grace United Methodist Church | Church | 182 | Washington | 39 39 00 N | 077 43 45 W |
| Green Brier State Park Dam and Dike | Dam | 218 | Washington | 39 32 30 N | 077 37 29 W |
| Green Hill | Populated Place | 165 | Washington | 39 34 53 N | 077 43 35 W |
| Green Hill Acres | Populated Place | 171 | Washington | 39 38 25 N | 077 39 41 W |
| Green Spring Cemetery | Cemetery | 175 | Washington | 39 37 31 N | 077 58 00 W |
| Green Spring Furnace | Populated Place | 136 | Washington | 39 37 21 N | 077 58 28 W |
| Green Spring Run | Stream | | Washington | 39 36 25 N | 077 58 09 W |
| Greenberry Hills | Populated Place | 189 | Washington | 39 37 43 N | 077 45 16 W |
| Greenbriar Lake | Reservoir | 218 | Washington | 39 32 30 N | 077 37 29 W |
| Greenbriar State Park Dike Dam | Dam | 218 | Washington | 39 32 30 N | 077 37 29 W |
| Greenbrier | Populated Place | 216 | Washington | 39 32 59 N | 077 37 15 W |
| Greenbrier Baptist Church | Church | 164 | Washington | 39 34 17 N | 077 38 47 W |
| Greenbrier Elementary School | School | 183 | Washington | 39 33 26 N | 077 37 48 W |
| Greenbrier State Park | Park | 313 | Washington | 39 32 10 N | 077 37 25 W |
| Greenlawn Cemetery | Cemetery | 139 | Washington | 39 35 32 N | 077 48 44 W |
| Greensburg | Populated Place | 212 | Washington | 39 40 47 N | 077 33 45 W |
| Greensburg School | School | 215 | Washington | 39 40 42 N | 077 33 40 W |
| Greenspring Hill | Populated Place | 173 | Washington | 39 37 22 N | 077 57 49 W |
| Greenvale Village | Populated Place | 203 | Washington | 39 38 30 N | 077 36 09 W |
| Greystone Hills (subdivision) | Populated Place | 159 | Washington | 39 30 45 N | 077 39 28 W |
| Grimes | Populated Place | 115 | Washington | 39 31 16 N | 077 46 16 W |
| Gristmill Hill | Populated Place | 140 | Washington | 39 42 30 N | 077 50 18 W |
| Grove Creek | Stream | | Washington | 39 40 54 N | 077 36 21 W |
| Guard Lock Number 5 | Dam | 103 | Washington | 39 30 10 N | 077 50 43 W |
| Guard Lock Number 5 | Dam | 107 | Washington | 39 36 25 N | 077 55 20 W |
| Hager Park | Park | 157 | Washington | 39 37 58 N | 077 42 55 W |
| Hagerstown | Populated Place | 164 | Washington | 39 38 30 N | 077 43 12 W |
| Hagerstown Christian Church | Church | 160 | Washington | 39 37 28 N | 077 43 30 W |
| Hagerstown Church of the Brethren | Church | 164 | Washington | 39 38 24 N | 077 42 60 W |
| Hagerstown City Hall | Building | 167 | Washington | 39 38 34 N | 077 43 09 W |
| Hagerstown City Park Historic District | Park | 175 | Washington | 39 38 09 N | 077 43 57 W |
| Hagerstown Commercial Core Historic District | Park | 166 | Washington | 39 38 35 N | 077 43 15 W |
| Hagerstown Gospel Tabernacle | Church | 167 | Washington | 39 37 45 N | 077 43 49 W |
| Hagerstown Independent Church | Church | 164 | Washington | 39 38 21 N | 077 43 18 W |
| Hagerstown Industrial Park | Locale | 159 | Washington | 39 37 32 N | 077 42 31 W |
| Hagerstown Junior College | School | 170 | Washington | 39 37 50 N | 077 40 04 W |
| Hagerstown Police Department | Building | | Washington | 40 04 59 N | 078 13 04 W |
| Hagerstown Post Office | Post Office | 168 | Washington | 39 38 39 N | 077 43 14 W |
| Hagerstown Raceway | Locale | 112 | Washington | 39 39 37 N | 077 50 38 W |
| Hagerstown Reservoir | Reservoir | 239 | Washington | 39 38 53 N | 077 34 38 W |
| Halfway | Populated Place | 184 | Washington | 39 37 14 N | 077 45 32 W |
| Halfway County Park | Park | 176 | Washington | 39 36 29 N | 077 45 49 W |
| Halfway Manor | Populated Place | 176 | Washington | 39 37 15 N | 077 45 46 W |
| Halfway Public School (historical) | School | 175 | Washington | 39 37 11 N | 077 45 52 W |
| Hamilton Park (subdivision) | Populated Place | 188 | Washington | 39 39 55 N | 077 43 19 W |
| Hamilton Run | Stream | | Washington | 39 37 51 N | 077 42 23 W |
| Hamilton Run Shopping Center | Locale | 157 | Washington | 39 38 15 N | 077 42 43 W |
| Hancock | Populated Place | 135 | Washington | 39 41 56 N | 078 10 47 W |
| Hancock Ambulance and Rescue Squad Company 59 | Building | | Washington | 40 10 20 N | 078 17 48 W |
| Hancock Church of God | Church | 131 | Washington | 39 41 58 N | 078 10 54 W |
| Hancock Elementary School | School | 175 | Washington | 39 41 54 N | 078 11 49 W |
| Hancock Fire Company 5 | Building | | Washington | 40 10 32 N | 078 18 03 W |
| Hancock High School | School | 176 | Washington | 39 41 48 N | 078 11 50 W |
| Hancock Middle School | School | 175 | Washington | 39 41 49 N | 078 11 47 W |
| Hancock Post Office | Post Office | 141 | Washington | 39 42 12 N | 078 10 51 W |
| Hancock Sewage Lagoon | Reservoir | 130 | Washington | 39 42 18 N | 078 09 17 W |
| Hancock Sewage Lagoon Dam | Dam | 130 | Washington | 39 42 18 N | 078 09 17 W |
| Hancock Town Hall | Building | 134 | Washington | 39 42 03 N | 078 10 52 W |
| Hancock United Methodist Church | Church | 132 | Washington | 39 41 59 N | 078 10 59 W |
| Hancock War Memorial Library | Building | 128 | Washington | 39 41 57 N | 078 10 56 W |
| Hanging Rock | Pillar | 267 | Washington | 39 40 59 N | 077 57 57 W |
| Harman Gap | Gap | 479 | Washington | 39 37 58 N | 077 32 18 W |
| Harmony Hill School (historical) | School | 146 | Washington | 39 33 04 N | 077 40 37 W |
| Harpers Ferry Farm | Locale | 134 | Washington | 39 20 20 N | 077 41 34 W |
| Harvest Acres | Populated Place | 153 | Washington | 39 28 48 N | 077 42 49 W |
| Harvey | Populated Place | 285 | Washington | 39 42 11 N | 078 16 40 W |
| Hauser Ridge | Summit | 153 | Washington | 39 28 30 N | 077 45 30 W |