Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| County Home Park | Park | 88 | Harford | 39 31 37 N | 076 22 22 W |
| County Service Park | Park | 155 | Montgomery | 39 07 41 N | 077 10 01 W |
| Courthouse Point Managed Hunting Area | Park | 12 | Cecil | 39 30 15 N | 075 52 34 W |
| Cove Point Park | Park | 32 | Calvert | 38 23 10 N | 076 25 09 W |
| Cox Point Park | Park | 5 | Baltimore | 39 17 42 N | 076 27 50 W |
| Crabbs Branch Park | Park | 121 | Montgomery | 39 07 01 N | 077 08 59 W |
| Crain Memorial Park | Park | 34 | Charles | 38 22 07 N | 076 57 38 W |
| Cranberry Park | Park | 230 | Carroll | 39 35 16 N | 076 58 08 W |
| Creagerstown Park | Park | 92 | Frederick | 39 33 55 N | 077 21 11 W |
| Crisfield Historic District | Park | 1 | Somerset | 37 58 50 N | 075 51 22 W |
| Crofton Park | Park | 44 | Anne Arundel | 39 00 03 N | 076 40 10 W |
| Crown Estates Park | Park | 146 | Baltimore | 39 21 56 N | 076 46 02 W |
| Crumpton Park | Park | 10 | Queen Anne's | 39 14 14 N | 075 55 02 W |
| Curtis Bay Recreation Center | Park | 12 | Baltimore (city) | 39 13 31 N | 076 35 14 W |
| Cylburn Park | Park | 129 | Baltimore (city) | 39 21 11 N | 076 39 09 W |
| Cypress Creek Park | Park | 11 | Anne Arundel | 39 04 13 N | 076 32 29 W |
| Cypress Park | Park | 1 | Worcester | 38 04 42 N | 075 34 11 W |
| Cypressmeade Park | Park | 124 | Howard | 39 17 05 N | 076 51 13 W |
| Damascus Park | Park | 243 | Montgomery | 39 17 17 N | 077 12 29 W |
| Daniel Crouse Memorial Park | Park | 4 | Caroline | 38 53 15 N | 075 50 11 W |
| Dans Mountain State Park | Park | 677 | Allegany | 39 33 25 N | 078 57 13 W |
| Dans Mountain Wildlife Management Area | Park | 566 | Allegany | 39 31 48 N | 078 56 19 W |
| Darlington-Battle Swamp Historic District | Park | 101 | Harford | 39 38 12 N | 076 12 09 W |
| David Scul Park | Park | 122 | Montgomery | 39 05 40 N | 077 08 00 W |
| David W Force Park | Park | 126 | Howard | 39 17 29 N | 076 52 20 W |
| Davidsonville Park | Park | 48 | Anne Arundel | 38 55 08 N | 076 38 12 W |
| Dawson Park | Park | 121 | Montgomery | 39 04 28 N | 077 08 34 W |
| Dawsonville Regional Park | Park | 75 | Montgomery | 39 08 53 N | 077 20 12 W |
| Dead Run Park | Park | 97 | Baltimore | 39 18 45 N | 076 43 29 W |
| Deal Island State Wildlife Management Area | Park | 1 | Somerset | 38 10 38 N | 075 51 31 W |
| Deale-Tracys Park | Park | 46 | Anne Arundel | 38 46 50 N | 076 35 29 W |
| Deep Creek Park | Park | 3 | Baltimore | 39 18 18 N | 076 27 05 W |
| Deep Run Recreation Center | Park | 27 | Anne Arundel | 39 10 42 N | 076 44 41 W |
| Deer Creek State Park | Park | 86 | Harford | 39 38 14 N | 076 24 44 W |
| Deer Park | Park | 267 | Carroll | 39 30 42 N | 076 58 19 W |
| Denton Community Park | Park | 12 | Caroline | 38 52 58 N | 075 49 48 W |
| Denton Historic District | Park | 6 | Caroline | 38 53 22 N | 075 49 46 W |
| Devils Backbone County Park | Park | 118 | Washington | 39 32 21 N | 077 42 37 W |
| DeWees Playground | Park | 111 | Baltimore (city) | 39 21 25 N | 076 36 12 W |
| Dewey Field | Park | 2 | Anne Arundel | 38 59 05 N | 076 28 59 W |
| Diamond Farm Park | Park | 119 | Montgomery | 39 08 11 N | 077 13 53 W |
| Dickerson Conservation Park | Park | 90 | Montgomery | 39 11 53 N | 077 27 46 W |
| Dickerson Recreation Center | Park | 101 | Montgomery | 39 13 03 N | 077 25 18 W |
| Dickeyville Historic District | Park | 77 | Baltimore (city) | 39 19 06 N | 076 42 15 W |
| Dickinson Park | Park | 95 | Howard | 39 09 58 N | 076 52 14 W |
| Diddie Richardson Park | Park | 107 | Cecil | 39 41 56 N | 076 03 23 W |
| Dierssen Waterfowl Sanctuary | Park | 53 | Montgomery | 39 03 31 N | 077 18 13 W |
| Diffenbach Court Park | Park | 30 | Charles | 38 36 05 N | 077 09 40 W |
| Ditto Farms Regional Park | Park | 182 | Washington | 39 36 44 N | 077 39 48 W |
| Dogwood Park | Park | 118 | Montgomery | 39 04 16 N | 077 09 12 W |
| Dorchester County Fairgrounds (historical) | Park | 4 | Dorchester | 38 33 06 N | 076 05 06 W |
| Double Rock Park | Park | 61 | Baltimore | 39 22 05 N | 076 31 29 W |
| Doubs Mill Historic District | Park | 146 | Washington | 39 34 44 N | 077 39 20 W |
| Doubs Woods Park | Park | 169 | Washington | 39 37 02 N | 077 44 12 W |
| Douglas Patterson Park | Park | 77 | Prince George's | 38 49 29 N | 076 52 56 W |
| Downs Memorial Park | Park | 5 | Anne Arundel | 39 06 39 N | 076 26 19 W |
| Downtown Cumberland Historic District | Park | 189 | Allegany | 39 39 15 N | 078 45 54 W |
| Druid Hill Park | Park | 93 | Baltimore (city) | 39 19 25 N | 076 38 49 W |
| Druid Hill Park Historic District | Park | 93 | Baltimore (city) | 39 19 25 N | 076 38 49 W |
| Dry Seneca Creek Stream Valley Park | Park | 73 | Montgomery | 39 06 35 N | 077 21 51 W |
| Dublin Dell Park | Park | 128 | Harford | 39 39 14 N | 076 16 19 W |
| Dundalk Heritage Park | Park | 12 | Baltimore | 39 15 30 N | 076 31 14 W |
| Dundalk Park | Park | 12 | Baltimore | 39 15 32 N | 076 31 05 W |
| Dundee Natural Environment Area | Park | 6 | Baltimore | 39 21 31 N | 076 22 01 W |
| Dunkirk District Park | Park | 40 | Calvert | 38 43 22 N | 076 39 44 W |
| Dunloggin Park | Park | 111 | Howard | 39 15 25 N | 076 49 49 W |
| Dupont Heights Park | Park | 86 | Prince George's | 38 51 37 N | 076 55 32 W |
| E E Halmos Park | Park | 109 | Montgomery | 39 08 03 N | 077 24 39 W |
| Earle B Wood Park | Park | 110 | Montgomery | 39 05 30 N | 077 06 26 W |
| Earleville Wildlife Management Area | Park | 14 | Cecil | 39 26 16 N | 075 54 04 W |
| East Cambridge Park | Park | 5 | Dorchester | 38 34 00 N | 076 04 07 W |
| East End Park | Park | 147 | Frederick | 39 36 55 N | 077 24 02 W |
| East End Playground | Park | 587 | Allegany | 39 39 06 N | 078 55 09 W |
| East Fairland Park | Park | 97 | Montgomery | 39 03 52 N | 076 57 09 W |
| East Meadow Park | Park | 3 | Cecil | 39 36 29 N | 075 49 12 W |
| East New Market Historic District | Park | 12 | Dorchester | 38 35 56 N | 075 55 33 W |
| East Park | Park | 164 | Montgomery | 39 12 45 N | 077 07 38 W |
| Eastern Neck National Wildlife Refuge | Park | 6 | Kent | 39 02 30 N | 076 13 59 W |
| Easterwood Park | Park | 72 | Baltimore (city) | 39 18 20 N | 076 39 17 W |
| Easterwood Recreation Center | Park | 73 | Baltimore (city) | 39 18 21 N | 076 39 16 W |
| Eden Mills Park | Park | 118 | Harford | 39 40 38 N | 076 27 23 W |
| Eder Park | Park | 5 | Cecil | 39 36 25 N | 075 49 37 W |
| Edesville Park | Park | 6 | Kent | 39 09 21 N | 076 12 30 W |
| Edgewater Park | Park | 14 | Harford | 39 25 54 N | 076 18 47 W |
| Edgewood Park | Park | 25 | Harford | 39 24 58 N | 076 19 01 W |
| Edgewood Park | Park | 12 | Wicomico | 38 25 42 N | 075 39 35 W |
| Edmondson Heights Park | Park | 117 | Baltimore | 39 17 45 N | 076 43 05 W |
| Ednor Aston Recreation Center | Park | 144 | Montgomery | 39 08 06 N | 076 59 11 W |
| Elizabeth Road Park | Park | 43 | Anne Arundel | 39 08 12 N | 076 38 35 W |
| Elk Forest Wildlife Management Area | Park | 5 | Cecil | 39 31 45 N | 075 52 11 W |
| Elk Neck State Park | Park | 38 | Cecil | 39 29 04 N | 075 58 59 W |
| Elk Neck State Park | Park | 42 | Cecil | 39 30 10 N | 075 58 44 W |
| Ellicott City Historic District | Park | 61 | Howard | 39 16 03 N | 076 47 49 W |
| Ellis Bay Wildlife Management Area | Park | 0 | Wicomico | 38 15 37 N | 075 51 14 W |
| Elmley Recreation Center | Park | 47 | Baltimore (city) | 39 19 04 N | 076 34 14 W |
| Elvaton Park | Park | 36 | Anne Arundel | 39 06 25 N | 076 35 49 W |
| Emma Rockey Park | Park | 109 | Harford | 39 39 08 N | 076 14 35 W |
| Emmitsburg Community Park | Park | 130 | Frederick | 39 42 00 N | 077 20 01 W |
| Enterprise East Recreation Center | Park | 37 | Prince George's | 38 54 31 N | 076 47 42 W |
| Enterprise Estates Recreation Center | Park | 42 | Prince George's | 38 56 30 N | 076 48 35 W |
| Essex Farms Park | Park | 84 | Baltimore | 39 24 58 N | 076 38 47 W |
| Eutaw-Madison Apartment House Historic District | Park | 73 | Baltimore (city) | 39 18 50 N | 076 38 14 W |
| Evesham Park | Park | 109 | Baltimore (city) | 39 21 52 N | 076 36 24 W |
| Eyler Road Recreation Area | Park | 174 | Frederick | 39 38 04 N | 077 24 10 W |
| Fair Hill Natural Resource Management Area | Park | 45 | Cecil | 39 42 12 N | 075 49 54 W |
| Fair Hill State Natural Resources Management Area | Park | 66 | Cecil | 39 41 07 N | 075 50 14 W |
| Fairfield Park | Park | 12 | Wicomico | 38 22 10 N | 075 33 53 W |
| Fairland Recreational Park | Park | 80 | Montgomery | 39 05 03 N | 076 55 34 W |
| Fairmount Heights Park | Park | 31 | Prince George's | 38 54 17 N | 076 55 02 W |
| Fairmount State Wildlife Management Area | Park | 0 | Somerset | 38 04 50 N | 075 49 25 W |