Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Old Town Medical Center | Hospital | 12 | Baltimore (city) | 39 17 52 N | 076 36 02 W |
| Peninsula General Health Services | Hospital | 1 | Worcester | 38 23 17 N | 075 03 59 W |
| Peninsula General Hospital | Hospital | 8 | Wicomico | 38 21 43 N | 075 35 52 W |
| Perry Point Veterans Administration Medical Center | Hospital | 20 | Cecil | 39 33 04 N | 076 03 45 W |
| Physicians Memorial Hospital | Hospital | 55 | Charles | 38 31 46 N | 076 58 21 W |
| Pine Bluff Sanitarium | Hospital | 4 | Wicomico | 38 20 36 N | 075 37 37 W |
| Pinel Clinic Hospital | Hospital | 124 | Howard | 39 15 23 N | 076 47 43 W |
| Potomac Valley Nursing Home | Hospital | 129 | Montgomery | 39 04 24 N | 077 09 36 W |
| Prince George's Hospital Center | Hospital | 57 | Prince George's | 38 55 49 N | 076 55 15 W |
| Provident Hospital | Hospital | 121 | Baltimore (city) | 39 20 09 N | 076 40 11 W |
| Psychiatric Institute of Montgomery County | Hospital | 143 | Montgomery | 39 05 58 N | 077 11 57 W |
| Queen Annes Medical Center | Hospital | 5 | Queen Anne's | 38 59 14 N | 076 09 21 W |
| Randolph Medical Center | Hospital | 89 | Montgomery | 39 03 15 N | 077 05 42 W |
| Rockville Health Center | Hospital | 130 | Montgomery | 39 04 59 N | 077 08 50 W |
| Rosewood State Hospital | Hospital | 168 | Baltimore | 39 25 54 N | 076 46 33 W |
| Sacred Heart Hospital | Hospital | 434 | Allegany | 39 39 19 N | 078 47 44 W |
| Saint Agnes Hospital | Hospital | 51 | Baltimore (city) | 39 16 22 N | 076 40 21 W |
| Saint Charles Medical Center | Hospital | 59 | Charles | 38 36 10 N | 076 54 02 W |
| Saint Joseph Hospital | Hospital | 138 | Baltimore | 39 23 18 N | 076 36 41 W |
| Saint Josephs Hospital | Hospital | 38 | Baltimore (city) | 39 18 24 N | 076 35 53 W |
| Saint Margaret Medical Center | Hospital | 6 | Anne Arundel | 39 01 20 N | 076 25 13 W |
| Saint Marys Hospital | Hospital | 27 | St. Mary's | 38 17 58 N | 076 38 14 W |
| Saint Marys Nursing Home | Hospital | 28 | St. Mary's | 38 17 54 N | 076 38 11 W |
| Salisbury Nursing Home | Hospital | 10 | Wicomico | 38 22 13 N | 075 34 28 W |
| Seton Institute | Hospital | 135 | Baltimore (city) | 39 20 58 N | 076 42 28 W |
| Shady Grove Adventist Hospital | Hospital | 142 | Montgomery | 39 05 54 N | 077 11 56 W |
| Shanti Medical Center | Hospital | 35 | St. Mary's | 38 19 18 N | 076 40 18 W |
| Sharon Nursing Home | Hospital | 147 | Montgomery | 39 09 20 N | 077 02 23 W |
| Sheppard-Pratt Hospital | Hospital | 136 | Baltimore | 39 23 28 N | 076 37 10 W |
| Sixteenth Street Medical Center | Hospital | 2 | Worcester | 38 20 47 N | 075 04 49 W |
| Somerset Hospital (historical) | Hospital | 1 | Somerset | 38 02 23 N | 075 46 15 W |
| South Carroll Medical Center | Hospital | 185 | Carroll | 39 24 01 N | 076 57 07 W |
| South Shore Health Center | Hospital | 45 | Anne Arundel | 39 02 31 N | 076 36 20 W |
| Southern Health District Clinic | Hospital | 11 | Baltimore (city) | 39 16 32 N | 076 36 43 W |
| Southern Maryland Hospital Center | Hospital | 71 | Prince George's | 38 44 54 N | 076 52 33 W |
| Spring Grove State Hospital | Hospital | 117 | Baltimore | 39 15 53 N | 076 43 17 W |
| Springfield State Hospital | Hospital | 148 | Carroll | 39 22 46 N | 076 57 40 W |
| State of Maryland Health Center | Hospital | 44 | Baltimore (city) | 39 19 00 N | 076 37 00 W |
| Stella Maris Hospice | Hospital | 153 | Baltimore | 39 27 33 N | 076 35 46 W |
| Suburban Hospital | Hospital | 114 | Montgomery | 38 59 51 N | 077 06 36 W |
| Sydenham Hospital | Hospital | 67 | Baltimore (city) | 39 20 20 N | 076 34 50 W |
| Sylvan Manor Health Care Center | Hospital | 104 | Montgomery | 39 01 15 N | 077 03 24 W |
| Taylor Manor Hospital | Hospital | 117 | Howard | 39 15 21 N | 076 47 35 W |
| Tenth Street Medical Center | Hospital | 2 | Worcester | 38 20 26 N | 075 04 59 W |
| Thompson Infirmary | Hospital | 254 | Carroll | 39 34 55 N | 077 00 12 W |
| Twentysixth Street Medical Center | Hospital | 2 | Worcester | 38 21 19 N | 075 04 32 W |
| Unicorn Medical Center | Hospital | 18 | Queen Anne's | 39 14 23 N | 075 52 24 W |
| Union Hospital | Hospital | 9 | Cecil | 39 36 30 N | 075 49 58 W |
| Union Medical Clinic | Hospital | 14 | Harford | 39 32 42 N | 076 05 27 W |
| Union Memorial Hospital | Hospital | 63 | Baltimore (city) | 39 19 44 N | 076 36 51 W |
| United States Naval Hospital | Hospital | 14 | Anne Arundel | 38 59 19 N | 076 29 29 W |
| United States Public Health Services Hospital | Hospital | 62 | Baltimore (city) | 39 19 29 N | 076 37 26 W |
| University Hospital | Hospital | 17 | Baltimore (city) | 39 17 17 N | 076 37 27 W |
| Veterans Administration Hospital of Baltimore | Hospital | 67 | Baltimore (city) | 39 20 09 N | 076 35 44 W |
| Victor Cullen State Hospital | Hospital | 448 | Frederick | 39 42 44 N | 077 27 29 W |
| Washington Adventist Hospital | Hospital | 71 | Montgomery | 38 59 10 N | 077 00 06 W |
| Washington County Hospital | Hospital | 165 | Washington | 39 38 14 N | 077 42 58 W |
| Wesleyan Health Care Center | Hospital | 17 | Caroline | 38 53 30 N | 075 48 25 W |
| Western Maryland Hospital Center | Hospital | 179 | Washington | 39 39 56 N | 077 43 03 W |
| Westminster Nursing and Convalescent Center | Hospital | 273 | Carroll | 39 32 25 N | 076 59 43 W |
| Wicomico Nursing Home | Hospital | 9 | Wicomico | 38 22 36 N | 075 36 49 W |
| Wildwood Medical Center | Hospital | 116 | Montgomery | 39 01 35 N | 077 07 31 W |
| Williamsport Sanitarium | Hospital | 133 | Washington | 39 36 12 N | 077 49 07 W |
| Womans Hospital | Hospital | 40 | Baltimore (city) | 39 18 27 N | 076 37 27 W |
| Woodsboro Medical Center | Hospital | 119 | Frederick | 39 32 17 N | 077 18 49 W |
| Woolford Infirmary | Hospital | 74 | Baltimore (city) | 39 20 41 N | 076 35 01 W |
| Adam Island | Island | 0 | Dorchester | 38 08 41 N | 076 05 15 W |
| Amos Island (historical) | Island | 30 | Harford | 39 39 59 N | 076 11 12 W |
| Asquith Island | Island | 0 | Dorchester | 38 17 41 N | 076 08 07 W |
| Assacorkin Island | Island | 0 | Worcester | 38 03 36 N | 075 18 58 W |
| Assateague Island | Island | 2 | Worcester | 38 05 30 N | 075 12 14 W |
| Avalon Island | Island | 0 | Talbot | 38 42 31 N | 076 19 49 W |
| Axies Island | Island | 0 | Dorchester | 38 20 29 N | 075 56 22 W |
| Ayer Island | Island | 0 | Worcester | 38 16 18 N | 075 10 24 W |
| Ballards Island | Island | 1 | Somerset | 38 14 04 N | 075 50 38 W |
| Barren Island | Island | 4 | Dorchester | 38 19 35 N | 076 15 31 W |
| Barrett Island | Island | 0 | Calvert | 38 21 37 N | 076 28 49 W |
| Battery Island | Island | 0 | Harford | 39 29 40 N | 076 04 59 W |
| Bay Island | Island | 0 | Worcester | 38 04 24 N | 075 13 48 W |
| Beacon Clumps (historical) | Island | 0 | Worcester | 38 08 22 N | 075 12 30 W |
| Bealls Island | Island | 48 | Montgomery | 39 01 23 N | 077 14 24 W |
| Bear Island | Island | 40 | Montgomery | 38 59 06 N | 077 14 36 W |
| Beech Island | Island | 12 | Wicomico | 38 17 43 N | 075 27 06 W |
| Bettys Island | Island | 0 | Dorchester | 38 26 20 N | 076 09 49 W |
| Big Island | Island | 0 | Somerset | 37 56 31 N | 075 49 09 W |
| Big Island | Island | 0 | Worcester | 38 26 25 N | 075 05 10 W |
| Billys Island | Island | 0 | Dorchester | 38 12 10 N | 076 04 06 W |
| Birdsaw Island | Island | 59 | Frederick | 39 14 21 N | 077 28 27 W |
| Black Duck Island | Island | 0 | Somerset | 38 08 38 N | 075 52 47 W |
| Bloodsworth Island | Island | 0 | Dorchester | 38 10 45 N | 076 03 11 W |
| Boar Island | Island | -3 | Worcester | 38 26 05 N | 075 06 30 W |
| Boat Island | Island | 2 | Somerset | 38 00 21 N | 076 01 58 W |
| Bobbin Island | Island | 0 | Dorchester | 38 09 39 N | 076 05 24 W |
| Bodkin Island | Island | 0 | Queen Anne's | 38 53 52 N | 076 16 51 W |
| Booby Island (historical) | Island | -6 | Baltimore | 39 16 52 N | 076 22 43 W |
| Brady Island | Island | -3 | Worcester | 38 25 14 N | 075 06 02 W |
| Brewers Island | Island | 4 | Anne Arundel | 39 09 52 N | 076 35 20 W |
| Broomes Island | Island | 0 | Calvert | 38 24 25 N | 076 33 05 W |
| Brooms Island | Island | -2 | Calvert | 38 25 23 N | 076 29 28 W |
| Bruffs Island | Island | 3 | Talbot | 38 51 21 N | 076 11 28 W |
| Bull Point Island | Island | 0 | Dorchester | 38 25 19 N | 076 07 22 W |
| Bullock Island | Island | 4 | St. Mary's | 38 14 45 N | 076 47 44 W |
| Buzzard Island | Island | -3 | Calvert | 38 29 32 N | 076 39 11 W |
| Byrnes Island | Island | 83 | Washington | 39 19 47 N | 077 44 26 W |
| Cabin John Island | Island | 17 | Montgomery | 38 58 00 N | 077 08 37 W |
| Cacaway Island | Island | 2 | Kent | 39 07 26 N | 076 09 56 W |
| Carpenter Island | Island | -7 | Queen Anne's | 39 01 12 N | 076 10 23 W |
| Carpenter Island (historical) | Island | -3 | Queen Anne's | 39 01 13 N | 076 10 16 W |
| Carroll Island | Island | 3 | Baltimore | 39 19 17 N | 076 21 04 W |
| Cattail Island | Island | 4 | Dorchester | 38 23 17 N | 076 16 53 W |