Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Darlington Cemetery | Cemetery | 110 | Harford | 39 38 22 N | 076 11 28 W |
| Darlington Elementary School | School | 100 | Harford | 39 38 13 N | 076 12 04 W |
| Darlington Family Reading Center | Building | 98 | Harford | 39 38 35 N | 076 12 14 W |
| Darlington Post Office | Post Office | 98 | Harford | 39 38 25 N | 076 12 09 W |
| Darlington United Methodist Church | Church | 99 | Harford | 39 38 16 N | 076 12 03 W |
| Darlington Volunteer Fire Company | Building | | Harford | 40 05 18 N | 076 20 37 W |
| Darlington-Battle Swamp Historic District | Park | 101 | Harford | 39 38 12 N | 076 12 09 W |
| Day Meadows | Populated Place | 126 | Harford | 39 40 32 N | 076 16 05 W |
| Days Point | Cape | 1 | Harford | 39 19 45 N | 076 17 52 W |
| Deep Creek | Stream | | Harford | 39 41 29 N | 076 15 36 W |
| Deep Spring Branch | Stream | | Harford | 39 26 33 N | 076 14 13 W |
| Deer Creek | Stream | | Harford | 39 36 48 N | 076 08 56 W |
| Deer Creek Cemetery | Cemetery | 98 | Harford | 39 38 47 N | 076 12 20 W |
| Deer Creek Cemetery | Cemetery | 128 | Harford | 39 36 47 N | 076 21 07 W |
| Deer Creek Church | Church | 130 | Harford | 39 36 45 N | 076 21 08 W |
| Deer Creek Church | Church | 97 | Harford | 39 38 45 N | 076 12 18 W |
| Deer Creek Estates | Populated Place | 97 | Harford | 39 36 08 N | 076 10 59 W |
| Deer Creek State Park | Park | 86 | Harford | 39 38 14 N | 076 24 44 W |
| Deer Meadows | Populated Place | 150 | Harford | 39 39 07 N | 076 29 21 W |
| Deer Park | Populated Place | 107 | Harford | 39 38 30 N | 076 18 31 W |
| Deercreek (historical) | Populated Place | 90 | Harford | 39 37 02 N | 076 16 12 W |
| Deerfield | Populated Place | 128 | Harford | 39 39 23 N | 076 16 07 W |
| Deerfield Elementary School | School | 12 | Harford | 39 25 20 N | 076 17 26 W |
| Deerhaven | Populated Place | 127 | Harford | 39 33 22 N | 076 15 52 W |
| Delano Acres | Populated Place | 128 | Harford | 39 37 31 N | 076 21 59 W |
| Delph Creek | Stream | | Harford | 39 24 21 N | 076 09 27 W |
| Dipper Creek | Stream | | Harford | 39 28 21 N | 076 05 52 W |
| District 1 (Abingdon) Election District | Civil | 6 | Harford | 39 24 15 N | 076 17 35 W |
| District 2 (Halls Cross Roads) Election District | Civil | 8 | Harford | 39 27 36 N | 076 10 06 W |
| District 3 (Bel Air) Election District | Civil | 102 | Harford | 39 33 11 N | 076 20 27 W |
| District 4 (Marshall) Election District | Civil | 191 | Harford | 39 37 46 N | 076 29 34 W |
| District 5 (Dublin) Election District | Civil | 99 | Harford | 39 40 12 N | 076 18 08 W |
| District 6 (Havre de Grace) Election District | Civil | 4 | Harford | 39 31 39 N | 076 06 06 W |
| Dol Ray (subdivision) | Populated Place | 25 | Harford | 39 30 16 N | 076 10 08 W |
| Doves Cove | Bay | -3 | Harford | 39 22 07 N | 076 16 50 W |
| Drexel | Populated Place | 136 | Harford | 39 33 14 N | 076 22 21 W |
| Drybranch | Populated Place | 178 | Harford | 39 39 49 N | 076 32 36 W |
| Dublin | Populated Place | 139 | Harford | 39 39 03 N | 076 16 00 W |
| Dublin Cemetery | Cemetery | 138 | Harford | 39 38 57 N | 076 16 02 W |
| Dublin Dell Park | Park | 128 | Harford | 39 39 14 N | 076 16 19 W |
| Dublin Elementary School | School | 138 | Harford | 39 38 56 N | 076 15 58 W |
| Dublin Manor | Populated Place | 141 | Harford | 39 38 45 N | 076 15 49 W |
| Dublin United Methodist Church | Church | 138 | Harford | 39 38 57 N | 076 16 01 W |
| Dulaney Ridge | Populated Place | 201 | Harford | 39 36 09 N | 076 27 52 W |
| Dunsen Heights | Populated Place | 140 | Harford | 39 39 21 N | 076 22 39 W |
| Dunwood | Populated Place | 116 | Harford | 39 28 55 N | 076 23 06 W |
| Dutch Island (historical) | Island | 30 | Harford | 39 40 35 N | 076 11 60 W |
| Eagle Estates | Populated Place | 106 | Harford | 39 34 48 N | 076 16 48 W |
| Eagle Point | Cape | 4 | Harford | 39 24 08 N | 076 16 09 W |
| Eagle View | Populated Place | 118 | Harford | 39 31 35 N | 076 29 57 W |
| Earlton | Populated Place | 134 | Harford | 39 34 24 N | 076 08 54 W |
| East Branch Canal Creek | Stream | | Harford | 39 23 34 N | 076 18 38 W |
| East Branch Winters Run | Stream | | Harford | 39 33 12 N | 076 26 27 W |
| East Chapel | Church | 12 | Harford | 39 28 50 N | 076 07 34 W |
| Eastern Christian College | School | 53 | Harford | 39 29 55 N | 076 15 56 W |
| Ebaughs Creek | Stream | | Harford | 39 42 26 N | 076 35 25 W |
| Ebenezer Cemetery | Cemetery | 200 | Harford | 39 34 34 N | 076 29 56 W |
| Ebenezer Church | Church | 202 | Harford | 39 34 36 N | 076 30 00 W |
| Eden Hills | Populated Place | 126 | Harford | 39 40 20 N | 076 27 39 W |
| Eden Mills Park | Park | 118 | Harford | 39 40 38 N | 076 27 23 W |
| Edgewater Park | Park | 14 | Harford | 39 25 54 N | 076 18 47 W |
| Edgewater Village | Populated Place | 31 | Harford | 39 25 47 N | 076 18 49 W |
| Edgewater Village Dam | Dam | 5 | Harford | 39 26 00 N | 076 18 17 W |
| Edgewater Village Lake | Reservoir | 5 | Harford | 39 26 00 N | 076 18 17 W |
| Edgewater Village Shopping Center | Locale | 28 | Harford | 39 26 02 N | 076 19 02 W |
| Edgewood | Populated Place | 14 | Harford | 39 25 07 N | 076 17 40 W |
| Edgewood Area Health Clinic | Hospital | 20 | Harford | 39 25 11 N | 076 17 48 W |
| Edgewood Assembly of God Church | Church | 22 | Harford | 39 25 52 N | 076 18 09 W |
| Edgewood Baptist Church | Church | 16 | Harford | 39 25 08 N | 076 17 41 W |
| Edgewood Branch Harford County Library | Building | 23 | Harford | 39 25 35 N | 076 17 54 W |
| Edgewood Elementary School | School | 16 | Harford | 39 25 25 N | 076 17 57 W |
| Edgewood Heights | Populated Place | 24 | Harford | 39 25 35 N | 076 17 57 W |
| Edgewood High School | School | 13 | Harford | 39 25 25 N | 076 17 12 W |
| Edgewood Meadows | Populated Place | 30 | Harford | 39 25 35 N | 076 18 21 W |
| Edgewood Middle School | School | 13 | Harford | 39 25 20 N | 076 17 19 W |
| Edgewood Park | Park | 25 | Harford | 39 24 58 N | 076 19 01 W |
| Edgewood Plaza Shopping Center | Locale | 25 | Harford | 39 25 40 N | 076 17 57 W |
| Edgewood Post Office | Post Office | 22 | Harford | 39 25 41 N | 076 17 54 W |
| Edgewood Proving Ground | Locale | 1 | Harford | 39 22 53 N | 076 18 10 W |
| Edgewood Square Shopping Center | Locale | 19 | Harford | 39 25 30 N | 076 17 48 W |
| Edwin Booth Theatre | Building | 127 | Harford | 39 33 47 N | 076 17 14 W |
| El Bethel Baptist Church | Church | 135 | Harford | 39 38 48 N | 076 19 01 W |
| Elbow Branch | Stream | | Harford | 39 37 06 N | 076 10 09 W |
| Elbow Brook | Stream | | Harford | 39 31 29 N | 076 23 16 W |
| Elkridge-Harford Hunt Club | Locale | 162 | Harford | 39 34 33 N | 076 30 48 W |
| Elm Tree Point | Cape | -2 | Harford | 39 22 54 N | 076 11 09 W |
| Emerson Heights | Populated Place | 86 | Harford | 39 36 15 N | 076 10 14 W |
| Emma Rockey Park | Park | 109 | Harford | 39 39 08 N | 076 14 35 W |
| Emmanuel Church | Church | 125 | Harford | 39 32 22 N | 076 21 18 W |
| Emmord Branch | Stream | | Harford | 39 23 22 N | 076 19 31 W |
| Emmorton | Populated Place | 98 | Harford | 39 29 43 N | 076 19 22 W |
| Emmorton Baptist Church | Church | 106 | Harford | 39 29 57 N | 076 19 36 W |
| Emmorton Business Park | Locale | 24 | Harford | 39 27 10 N | 076 18 42 W |
| Emmorton School | School | 93 | Harford | 39 29 35 N | 076 19 18 W |
| Emory Cemetery | Cemetery | 122 | Harford | 39 39 04 N | 076 20 11 W |
| Emory Church | Locale | 119 | Harford | 39 39 05 N | 076 20 08 W |
| Enfield Medical Center | Hospital | 133 | Harford | 39 42 07 N | 076 22 11 W |
| English Country Manor (subdivision) | Populated Place | 102 | Harford | 39 31 33 N | 076 21 53 W |
| Evangel Assembly of God Church | Church | 49 | Harford | 39 32 09 N | 076 10 03 W |
| Evangelical Methodist Church of Dublin | Church | 104 | Harford | 39 39 41 N | 076 16 45 W |
| Evergreen Heights | Populated Place | 100 | Harford | 39 30 28 N | 076 20 01 W |
| Evermar Farms | Locale | 108 | Harford | 39 31 17 N | 076 17 34 W |
| Exeter Green | Populated Place | 108 | Harford | 39 29 00 N | 076 22 39 W |
| Fair Hill | Populated Place | 139 | Harford | 39 34 17 N | 076 09 56 W |
| Fairmont | Populated Place | 110 | Harford | 39 31 18 N | 076 19 59 W |
| Fairview | Populated Place | 186 | Harford | 39 34 52 N | 076 25 17 W |
| Fairview Cemetery | Cemetery | 188 | Harford | 39 34 51 N | 076 25 19 W |
| Fairview Church | Church | 191 | Harford | 39 34 50 N | 076 25 18 W |
| Fairview Point | Cape | 5 | Harford | 39 27 00 N | 076 15 05 W |
| Fairview Point | Cape | -3 | Harford | 39 24 43 N | 076 15 17 W |