Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Prince George's County | Civil | 67 | Prince George's | 38 50 00 N | 076 50 59 W |
| Prince George's County Equestrian Center | Locale | 6 | Prince George's | 38 48 39 N | 076 44 56 W |
| Prince George's Hospital Center | Hospital | 57 | Prince George's | 38 55 49 N | 076 55 15 W |
| Prince George's Plaza Metro Station | Locale | 41 | Prince George's | 38 57 55 N | 076 57 22 W |
| Prince Georges Country Club | Locale | 36 | Prince George's | 38 56 00 N | 076 47 37 W |
| Prince Georges Country Club | Locale | 28 | Prince George's | 38 55 25 N | 076 53 39 W |
| Prince Georges County Police | Building | | Prince George's | 39 32 18 N | 077 27 58 W |
| Prince Georges County Police | Building | | Prince George's | 39 32 19 N | 077 27 57 W |
| Prince Georges Hospital Center Heliport | Airport | 59 | Prince George's | 38 55 49 N | 076 55 12 W |
| Prince Georges Maryland State Police | Building | | Prince George's | 39 24 04 N | 077 27 37 W |
| Prince Georges Plaza | Locale | 36 | Prince George's | 38 58 06 N | 076 57 28 W |
| Prince Georges Yacht Club | Locale | 5 | Prince George's | 38 42 11 N | 077 01 34 W |
| Prince of Peace Lutheran Church | Church | 18 | Baltimore | 39 19 32 N | 076 30 30 W |
| Prince of Peace Presbyterian Church | Church | 29 | Anne Arundel | 39 00 29 N | 076 41 42 W |
| Prince Street School | School | 10 | Wicomico | 38 21 19 N | 075 35 22 W |
| Princess Anne | Populated Place | 5 | Somerset | 38 12 10 N | 075 41 33 W |
| Princess Anne Elementary School | School | 4 | Somerset | 38 11 57 N | 075 41 43 W |
| Princess Anne Post Office | Post Office | 4 | Somerset | 38 12 08 N | 075 41 35 W |
| Princess Anne Volunteer Fire Company | Building | | Somerset | 38 20 49 N | 076 09 40 W |
| Princeton Elementary School | School | 82 | Prince George's | 38 48 49 N | 076 54 07 W |
| Principio | Populated Place | 97 | Cecil | 39 39 02 N | 076 02 17 W |
| Principio Creek | Stream | | Cecil | 39 33 42 N | 076 02 08 W |
| Principio Furnace | Populated Place | 25 | Cecil | 39 34 30 N | 076 02 20 W |
| Principio Furnace Post Office (historical) | Post Office | 20 | Cecil | 39 34 40 N | 076 01 58 W |
| Principio Heights | Populated Place | 120 | Cecil | 39 39 13 N | 076 02 45 W |
| Principio Methodist Church | Church | 51 | Cecil | 39 34 25 N | 076 02 33 W |
| Principio Post Office (historical) | Post Office | 96 | Cecil | 39 39 02 N | 076 02 19 W |
| Principio Station | Locale | 26 | Cecil | 39 34 10 N | 076 02 13 W |
| Principio United Methodist Church | Church | 54 | Cecil | 39 34 25 N | 076 02 35 W |
| Prison Point | Cape | -3 | Calvert | 38 26 48 N | 076 36 31 W |
| Pritts Cemetery | Cemetery | 773 | Garrett | 39 32 07 N | 079 13 50 W |
| Probasco Landing | Locale | 2 | Talbot | 38 53 30 N | 076 04 21 W |
| Probst House | Building | | Baltimore | 39 24 21 N | 076 35 29 W |
| Proctors Seat | Populated Place | 114 | Cecil | 39 38 28 N | 076 01 54 W |
| Proctors Wharf | Locale | -3 | Charles | 38 34 40 N | 077 10 15 W |
| Profit Acres | Populated Place | 93 | Frederick | 39 18 02 N | 077 30 29 W |
| Progressive Baptist Church | Church | 62 | Baltimore (city) | 39 17 47 N | 076 39 54 W |
| Progressive First Baptist Church | Church | 125 | Baltimore (city) | 39 19 32 N | 076 40 58 W |
| Prospect | Populated Place | 125 | Harford | 39 41 25 N | 076 18 10 W |
| Prospect Avenue Park | Park | 219 | Carroll | 39 22 46 N | 077 09 22 W |
| Prospect Bay | Bay | -3 | Queen Anne's | 38 56 15 N | 076 14 13 W |
| Prospect Bay | Populated Place | 2 | Queen Anne's | 38 55 05 N | 076 12 09 W |
| Prospect Bay Country Club | Locale | 3 | Queen Anne's | 38 55 13 N | 076 11 40 W |
| Prospect Hall High School | School | 124 | Frederick | 39 24 17 N | 077 26 26 W |
| Prospect Heights | Populated Place | 130 | Harford | 39 33 48 N | 076 18 42 W |
| Prospect Hill Park Cemetery | Cemetery | 143 | Baltimore | 39 24 13 N | 076 36 10 W |
| Prospect Hills | Populated Place | 165 | Carroll | 39 21 50 N | 076 53 39 W |
| Prospect Hills (subdivision) | Populated Place | 13 | Dorchester | 38 38 01 N | 075 50 58 W |
| Prospect Mill Elementary School | School | 124 | Harford | 39 33 22 N | 076 17 33 W |
| Prospect Park (historical) | Park | 14 | Baltimore | 39 17 52 N | 076 30 02 W |
| Prospect Plaza Shopping Center | Locale | 101 | Frederick | 39 24 29 N | 077 25 52 W |
| Prospect View | Populated Place | 233 | Frederick | 39 22 52 N | 077 10 36 W |
| Protestant Point | Cape | 3 | St. Mary's | 38 14 53 N | 076 40 28 W |
| Providence | Populated Place | 148 | Baltimore | 39 25 26 N | 076 33 45 W |
| Providence | Populated Place | 66 | Cecil | 39 41 25 N | 075 52 34 W |
| Providence | Populated Place | 5 | Talbot | 38 46 13 N | 075 57 57 W |
| Providence (historical) | Populated Place | 7 | Anne Arundel | 38 59 56 N | 076 27 38 W |
| Providence Baptist Church | Church | 46 | Baltimore (city) | 39 18 05 N | 076 37 54 W |
| Providence Cemetery | Cemetery | 190 | Carroll | 39 27 59 N | 076 55 44 W |
| Providence Cemetery | Cemetery | 218 | Frederick | 39 20 07 N | 077 13 47 W |
| Providence Cemetery | Cemetery | 184 | Harford | 39 32 25 N | 076 27 47 W |
| Providence Church | Church | 148 | Baltimore | 39 25 17 N | 076 34 01 W |
| Providence Church | Church | 190 | Carroll | 39 27 58 N | 076 55 42 W |
| Providence Church | Church | 184 | Harford | 39 32 24 N | 076 27 47 W |
| Providence Church | Church | 70 | Prince George's | 38 44 31 N | 076 58 21 W |
| Providence Cove | Bay | 2 | Anne Arundel | 38 59 50 N | 076 27 29 W |
| Providence Cove | Populated Place | 7 | Anne Arundel | 38 59 56 N | 076 27 38 W |
| Providence Landing | Populated Place | 5 | Caroline | 38 45 49 N | 075 58 33 W |
| Providence Methodist Church | Church | 184 | Howard | 39 15 37 N | 077 00 37 W |
| Providence United Methodist Church | Church | 9 | Cecil | 39 36 37 N | 075 49 40 W |
| Providence United Methodist Church | Church | 219 | Frederick | 39 20 07 N | 077 13 46 W |
| Providence Volunteer Fire Company Station 29 | Building | | Baltimore | 39 25 24 N | 076 33 56 W |
| Provident Hospital | Hospital | 121 | Baltimore (city) | 39 20 09 N | 076 40 11 W |
| Provinces | Populated Place | 64 | Anne Arundel | 39 08 14 N | 076 43 46 W |
| Provinces Branch Library | Building | 76 | Anne Arundel | 39 07 50 N | 076 44 16 W |
| Prugh Branch | Stream | | Carroll | 39 27 01 N | 076 54 24 W |
| Prussian Point | Cape | -3 | Kent | 39 06 15 N | 076 13 12 W |
| Prussian Point | Cape | -3 | Kent | 39 06 16 N | 076 13 10 W |
| Pry Cove | Bay | -3 | Somerset | 38 05 59 N | 076 02 51 W |
| Pry Ford | Crossing | 103 | Washington | 39 29 00 N | 077 43 04 W |
| Pry Island | Island | 0 | Somerset | 38 05 42 N | 076 03 37 W |
| Pryor Branch | Stream | | Wicomico | 38 19 10 N | 075 36 13 W |
| Prys Mill (historical) | Locale | 109 | Washington | 39 29 07 N | 077 42 54 W |
| Psychiatric Institute of Montgomery County | Hospital | 143 | Montgomery | 39 05 58 N | 077 11 57 W |
| Psychology/Music Annex | Building | | Baltimore | 39 24 39 N | 076 35 47 W |
| Public Documents Reference Library | Building | 7 | Prince George's | 38 49 05 N | 076 45 06 W |
| Public Landing | Populated Place | 2 | Worcester | 38 08 56 N | 075 17 15 W |
| Public School 126 (historical) | School | 7 | Baltimore (city) | 39 16 47 N | 076 37 03 W |
| Public School 128 (historical) | School | 36 | Baltimore (city) | 39 17 38 N | 076 38 02 W |
| Public School 140 (historical) | School | 29 | Baltimore (city) | 39 17 28 N | 076 38 12 W |
| Public School 150 | School | 27 | Baltimore (city) | 39 14 51 N | 076 37 26 W |
| Public School 163 | School | 24 | Baltimore (city) | 39 14 46 N | 076 37 28 W |
| Public School 203 | School | 22 | Baltimore (city) | 39 14 10 N | 076 36 21 W |
| Public School 239 | School | 22 | Baltimore (city) | 39 13 56 N | 076 35 38 W |
| Public School Number 109 | School | 20 | Baltimore (city) | 39 18 01 N | 076 35 39 W |
| Public School Number Three | School | 1 | Somerset | 37 59 31 N | 075 50 38 W |
| Puckum Branch | Stream | | Dorchester | 38 36 07 N | 075 49 12 W |
| Pulaski Business Park | Locale | 37 | Baltimore | 39 21 17 N | 076 26 60 W |
| Pulaski Industrial Park | Locale | 11 | Baltimore | 39 20 15 N | 076 28 16 W |
| Pullen Hall | Building | 593 | Allegany | 39 38 58 N | 078 55 55 W |
| Pulletts Chapel | Church | 12 | Worcester | 38 24 17 N | 075 18 12 W |
| Pulletts Chapel Cemetery | Cemetery | 12 | Worcester | 38 24 17 N | 075 18 11 W |
| Pumphandle Branch | Stream | | Anne Arundel | 38 52 13 N | 076 35 04 W |
| Pumphrey | Populated Place | 21 | Anne Arundel | 39 13 02 N | 076 38 14 W |
| Pumphrey Recreation Center | Park | 11 | Anne Arundel | 39 13 06 N | 076 38 09 W |
| Pumpkin Center | Populated Place | 213 | Allegany | 39 37 18 N | 078 33 55 W |
| Pumpton County Park | Park | 109 | Cecil | 39 42 10 N | 076 00 14 W |
| Punch Island (historical) | Island | -3 | Dorchester | 38 25 20 N | 076 17 27 W |
| Punch Island Creek | Channel | 0 | Dorchester | 38 24 58 N | 076 15 57 W |
| Punch Point | Cape | -3 | Talbot | 38 45 42 N | 076 20 15 W |