Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Peppermint Hollow | Valley | | Garrett | 39 40 35 N | 079 23 31 W |
| Peppermint Park | Populated Place | 231 | Carroll | 39 31 48 N | 076 57 22 W |
| Perch Creek | Stream | | Cecil | 39 34 10 N | 075 50 11 W |
| Percy Cemetery | Cemetery | 646 | Allegany | 39 39 39 N | 078 55 49 W |
| Percy Julian Science Center | Building | | Baltimore (city) | 39 18 35 N | 076 39 28 W |
| Perdue Creek | Stream | | Wicomico | 38 23 37 N | 075 29 55 W |
| Performing Arts Center | Building | | Allegany | 39 39 01 N | 078 55 54 W |
| Period Pond | Reservoir | 22 | Anne Arundel | 38 51 53 N | 076 35 03 W |
| Perkins Cemetery | Cemetery | 71 | Prince George's | 39 00 31 N | 076 48 48 W |
| Perkins Chapel | Church | 71 | Prince George's | 39 00 32 N | 076 48 48 W |
| Perkins Creek | Stream | | Worcester | 38 24 41 N | 075 10 41 W |
| Perkins Memorial Church | Church | 65 | Prince George's | 39 00 27 N | 076 48 40 W |
| Perkins Square Baptist Church | Church | 49 | Baltimore (city) | 39 17 42 N | 076 39 25 W |
| Permenter | Populated Place | 147 | Frederick | 39 22 00 N | 077 19 01 W |
| Perrey Church | Church | 5 | Queen Anne's | 38 56 07 N | 076 11 13 W |
| Perrin Branch | Stream | | Calvert | 38 26 32 N | 076 28 54 W |
| Perring Parkway Shopping Center | Locale | | Baltimore | 39 22 21 N | 076 33 50 W |
| Perring Plaza Shopping Center | Locale | 135 | Baltimore | 39 23 50 N | 076 32 44 W |
| Perring Village | Populated Place | 112 | Baltimore | 39 23 15 N | 076 32 50 W |
| Perry Branch | Bay | -2 | Charles | 38 18 59 N | 076 54 28 W |
| Perry Cabin Park | Park | 3 | Talbot | 38 47 32 N | 076 13 35 W |
| Perry Cove | Bay | 0 | Anne Arundel | 39 07 37 N | 076 28 29 W |
| Perry Hall | Populated Place | 77 | Baltimore | 39 24 45 N | 076 27 49 W |
| Perry Hall Baptist Church | Church | 87 | Baltimore | 39 25 15 N | 076 27 46 W |
| Perry Hall Branch Baltimore County Public Library | Building | 75 | Baltimore | 39 24 30 N | 076 28 11 W |
| Perry Hall Church | Church | 82 | Baltimore | 39 24 59 N | 076 27 36 W |
| Perry Hall Crossing Shopping Center | Locale | 73 | Baltimore | 39 23 34 N | 076 29 16 W |
| Perry Hall Elementary School | School | 77 | Baltimore | 39 23 57 N | 076 28 42 W |
| Perry Hall Estates | Populated Place | 82 | Baltimore | 39 24 59 N | 076 27 56 W |
| Perry Hall Estates | Populated Place | 174 | Harford | 39 32 48 N | 076 27 43 W |
| Perry Hall Fire Department Station 55 | Building | | Baltimore | 39 24 15 N | 076 28 24 W |
| Perry Hall High School | School | 41 | Baltimore | 39 23 33 N | 076 27 52 W |
| Perry Hall Manor | Populated Place | 97 | Baltimore | 39 25 48 N | 076 27 23 W |
| Perry Hall Marketplace Shopping Center | Locale | | Baltimore | 39 24 49 N | 076 27 42 W |
| Perry Hall Middle School | School | 61 | Baltimore | 39 23 53 N | 076 28 29 W |
| Perry Hall Park | Populated Place | 30 | Baltimore | 39 23 24 N | 076 28 10 W |
| Perry Hall Post Office | Post Office | | Baltimore | 39 23 35 N | 076 29 17 W |
| Perry Hall School | School | 70 | Baltimore | 39 24 14 N | 076 28 22 W |
| Perry Hall Shopping Center | Locale | 60 | Baltimore | 39 23 42 N | 076 29 01 W |
| Perry Hall Square Shopping Center | Locale | 59 | Baltimore | 39 23 47 N | 076 28 39 W |
| Perry Hall Village | Populated Place | 57 | Baltimore | 39 24 07 N | 076 27 54 W |
| Perry Hill Shopping Center | Locale | 117 | Baltimore | 39 23 22 N | 076 32 35 W |
| Perry Island | Island | 24 | Montgomery | 38 58 20 N | 077 13 07 W |
| Perry Point | Populated Place | 19 | Cecil | 39 33 15 N | 076 04 19 W |
| Perry Point Park | Park | 17 | Cecil | 39 32 50 N | 076 02 59 W |
| Perry Point Post Office | Post Office | 24 | Cecil | 39 33 12 N | 076 04 14 W |
| Perry Point Veterans Administration Medical Center | Hospital | 20 | Cecil | 39 33 04 N | 076 03 45 W |
| Perry School House (historical) | School | 23 | Cecil | 39 33 37 N | 076 04 18 W |
| Perry View | Populated Place | 74 | Baltimore | 39 24 47 N | 076 28 20 W |
| Perry Wright | Populated Place | 12 | Charles | 38 35 48 N | 077 09 07 W |
| Perryhawkin Cemetery | Cemetery | 7 | Somerset | 38 10 00 N | 075 34 40 W |
| Perryhawkin Church | Church | 7 | Somerset | 38 09 59 N | 075 34 41 W |
| Perryman | Populated Place | 12 | Harford | 39 28 10 N | 076 12 16 W |
| Perryman Industrial Park | Locale | 10 | Harford | 39 28 20 N | 076 12 03 W |
| Perryman Park | Park | 9 | Harford | 39 28 23 N | 076 12 55 W |
| Perryman Post Office | Post Office | 13 | Harford | 39 27 59 N | 076 12 09 W |
| Perryman School | School | 8 | Harford | 39 28 43 N | 076 12 25 W |
| Perrys Corner | Populated Place | 5 | Queen Anne's | 38 56 06 N | 076 11 16 W |
| Perrys Corner Cemetery | Cemetery | 5 | Queen Anne's | 38 56 07 N | 076 11 15 W |
| Perrys Glade Run | Stream | | Garrett | 39 25 38 N | 079 21 13 W |
| Perrys Haven | Populated Place | 14 | Worcester | 38 16 17 N | 075 36 37 W |
| Perryvale | Populated Place | 51 | Baltimore | 39 23 43 N | 076 27 49 W |
| Perryville | Populated Place | 22 | Cecil | 39 33 36 N | 076 04 17 W |
| Perryville Branch Cecil County Public Library | Building | 22 | Cecil | 39 33 36 N | 076 04 19 W |
| Perryville Community Park | Park | 15 | Cecil | 39 32 51 N | 076 03 04 W |
| Perryville Elementary School | School | 29 | Cecil | 39 33 55 N | 076 04 03 W |
| Perryville High School | School | 69 | Cecil | 39 34 55 N | 076 03 49 W |
| Perryville High School | School | 69 | Cecil | 39 34 57 N | 076 03 47 W |
| Perryville Industrial Park | Locale | 20 | Cecil | 39 33 35 N | 076 03 34 W |
| Perryville Middle School | School | 35 | Cecil | 39 34 09 N | 076 04 11 W |
| Perryville Post Office | Post Office | 21 | Cecil | 39 33 34 N | 076 04 20 W |
| Perryville Reservoir | Reservoir | 62 | Cecil | 39 35 13 N | 076 03 16 W |
| Perryville Town Hall | Building | 20 | Cecil | 39 33 35 N | 076 04 20 W |
| Perryville United Methodist Church | Church | 22 | Cecil | 39 33 30 N | 076 04 32 W |
| Perryville Yacht Club | Locale | -3 | Cecil | 39 33 41 N | 076 04 54 W |
| Perrywood | Populated Place | 6 | Harford | 39 28 47 N | 076 12 14 W |
| Perrywood Elementary School | School | 39 | Prince George's | 38 52 38 N | 076 46 51 W |
| Perrywood Estates | Populated Place | 148 | Montgomery | 39 05 54 N | 076 56 40 W |
| Pershing Hill School | School | 64 | Anne Arundel | 39 06 55 N | 076 45 15 W |
| Persimmon Creek | Stream | | St. Mary's | 38 27 34 N | 076 39 42 W |
| Persimmon Hills | Populated Place | 48 | Calvert | 38 40 31 N | 076 36 07 W |
| Persimmon Island (historical) | Island | 30 | Cecil | 39 42 53 N | 076 13 46 W |
| Persimmon Point | Cape | 9 | Anne Arundel | 38 55 59 N | 076 30 53 W |
| Persimmon Point | Cape | 0 | Anne Arundel | 39 03 10 N | 076 26 22 W |
| Persimmon Point | Cape | 14 | Charles | 38 17 19 N | 076 50 25 W |
| Persimmon Point | Cape | 0 | Somerset | 38 04 45 N | 075 46 53 W |
| Persimmon Point Creek | Stream | | Charles | 38 22 26 N | 076 53 01 W |
| Pet Cemetery | Cemetery | 38 | Anne Arundel | 39 07 24 N | 076 40 41 W |
| Peter Harmond Acres | Populated Place | 126 | Howard | 39 12 45 N | 076 48 11 W |
| Peter Pan Run | Stream | | Frederick | 39 21 18 N | 077 21 08 W |
| Peters Chapel | Church | 36 | Calvert | 38 45 12 N | 076 39 19 W |
| Peters Corners | Populated Place | 20 | Queen Anne's | 39 11 46 N | 075 47 20 W |
| Peters Cove | Bay | 2 | Anne Arundel | 38 59 01 N | 076 29 55 W |
| Peters Creek | Stream | | Wicomico | 38 22 05 N | 075 48 19 W |
| Peters Creek | Stream | | Wicomico | 38 22 49 N | 075 43 37 W |
| Peters Neck | Cape | 0 | Dorchester | 38 27 54 N | 076 12 46 W |
| Peters Neck | Cape | 0 | Worcester | 38 14 56 N | 075 13 20 W |
| Peters Pond | Lake | 0 | St. Mary's | 38 07 54 N | 076 19 41 W |
| Peters Pond | Lake | 0 | Worcester | 38 10 58 N | 075 15 49 W |
| Peters Run | Stream | | Allegany | 39 37 16 N | 078 33 42 W |
| Petersburg | Populated Place | 12 | Dorchester | 38 36 13 N | 075 51 24 W |
| Peterson Run (historical) | Stream | | Baltimore | 39 26 51 N | 076 33 34 W |
| Petersons Point | Cape | 5 | Calvert | 38 23 23 N | 076 30 25 W |
| Petersville | Populated Place | 157 | Frederick | 39 20 47 N | 077 36 39 W |
| Petnecostal Holiness Church | Church | 222 | Allegany | 39 39 12 N | 078 46 44 W |
| Pettebone Farms | Populated Place | 6 | Anne Arundel | 39 02 01 N | 076 25 28 W |
| Peyton School | School | 1 | Somerset | 37 59 29 N | 075 51 13 W |
| Pfefferkorn Natural Environmental Area | Park | 169 | Howard | 39 17 55 N | 076 58 15 W |
| Pfeiffer Corners | Populated Place | 105 | Howard | 39 11 50 N | 076 47 38 W |
| Pfister Mobile Home Park | Populated Place | 66 | Howard | 39 06 57 N | 076 49 42 W |