Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| New Psalmist Baptist Church | Church | 31 | Baltimore (city) | 39 17 43 N | 076 37 02 W |
| New Psalmist Church | Church | 60 | Baltimore (city) | 39 18 38 N | 076 38 20 W |
| New Rehoboth Baptist Church | Church | 102 | Baltimore (city) | 39 18 57 N | 076 40 24 W |
| New Saint John Baptist Church | Church | 38 | Baltimore (city) | 39 17 40 N | 076 38 10 W |
| New Saint Mark Baptist Church | Church | 47 | Baltimore (city) | 39 18 18 N | 076 38 03 W |
| New Shechinan Temple | Church | 68 | Baltimore (city) | 39 19 57 N | 076 38 53 W |
| New Shiloh Baptist Church | Church | 47 | Baltimore (city) | 39 17 52 N | 076 37 60 W |
| New Union Baptist Church | Church | 54 | Baltimore (city) | 39 17 38 N | 076 38 51 W |
| New Union Baptist Church Number 2 | Church | 36 | Baltimore (city) | 39 17 37 N | 076 38 02 W |
| Newcomer Hall | Building | 87 | Baltimore (city) | 39 21 47 N | 076 31 54 W |
| North Avenue Methodist Church | Church | 51 | Baltimore (city) | 39 18 42 N | 076 35 56 W |
| North Bend | Populated Place | 83 | Baltimore (city) | 39 16 50 N | 076 42 16 W |
| North Bend Elementary School | School | 104 | Baltimore (city) | 39 17 00 N | 076 42 17 W |
| North Harford Road Playfield | Park | 101 | Baltimore (city) | 39 22 03 N | 076 33 36 W |
| North Locust Point Marine Terminal | Locale | 1 | Baltimore (city) | 39 16 15 N | 076 35 07 W |
| Northeast Baptist Chapel | Church | 17 | Baltimore (city) | 39 18 32 N | 076 33 14 W |
| Northeast Market | Locale | 33 | Baltimore (city) | 39 17 53 N | 076 35 15 W |
| Northeast Middle School | School | 48 | Baltimore (city) | 39 19 30 N | 076 33 07 W |
| Northern High School | School | 87 | Baltimore (city) | 39 21 57 N | 076 34 16 W |
| Northern Parkway Junior High School | School | 99 | Baltimore (city) | 39 22 00 N | 076 33 38 W |
| Northern Police Station | Building | 66 | Baltimore (city) | 39 19 42 N | 076 37 38 W |
| Northside Baptist Church | Church | 112 | Baltimore (city) | 39 22 01 N | 076 35 50 W |
| Northwest Harbor | Harbor | -3 | Baltimore (city) | 39 16 20 N | 076 34 43 W |
| Northwest Plaza Shopping Center | Locale | 127 | Baltimore (city) | 39 20 45 N | 076 41 56 W |
| Northwest Police Station | Building | 134 | Baltimore (city) | 39 20 41 N | 076 41 09 W |
| Northwestern High School | School | 140 | Baltimore (city) | 39 21 52 N | 076 42 17 W |
| Northwood Branch Enoch Pratt Free Library | Building | 84 | Baltimore (city) | 39 20 44 N | 076 35 30 W |
| Northwood Recreation Center | Park | 81 | Baltimore (city) | 39 21 09 N | 076 35 17 W |
| Northwood School | School | 80 | Baltimore (city) | 39 21 10 N | 076 35 20 W |
| Northwood Shopping Center | Locale | 81 | Baltimore (city) | 39 20 28 N | 076 35 26 W |
| Northwood Station Baltimore Post Office | Post Office | 96 | Baltimore (city) | 39 22 02 N | 076 34 54 W |
| Northwood-Appold United Methodist Church | Church | 85 | Baltimore (city) | 39 20 46 N | 076 35 29 W |
| Norwegian Seamans Church | Church | 24 | Baltimore (city) | 39 17 15 N | 076 35 05 W |
| Norwood Heights | Populated Place | 57 | Baltimore (city) | 39 16 32 N | 076 41 24 W |
| Notre Dame | Locale | 109 | Baltimore (city) | 39 21 09 N | 076 37 30 W |
| Notre Dame College | School | 113 | Baltimore (city) | 39 21 05 N | 076 37 13 W |
| Notre Dame Convent | Church | 24 | Baltimore (city) | 39 17 25 N | 076 35 25 W |
| Notre Dame Convent of the Sacred Heart | Church | 31 | Baltimore (city) | 39 17 04 N | 076 34 05 W |
| Nurse Center | Building | | Baltimore (city) | 39 18 33 N | 076 39 32 W |
| O'Donnell Heights | Populated Place | 33 | Baltimore (city) | 39 16 34 N | 076 32 30 W |
| Oak Street African Methodist Episcopal Church | Church | 39 | Baltimore (city) | 39 18 56 N | 076 37 10 W |
| Oaklee Village | Populated Place | 56 | Baltimore (city) | 39 16 04 N | 076 41 06 W |
| Oheb Shalom Cemetery | Cemetery | 23 | Baltimore (city) | 39 16 57 N | 076 32 32 W |
| Oheb Shalom Temple | Church | 143 | Baltimore (city) | 39 22 10 N | 076 42 38 W |
| Ohel Yakov Synagogue | Church | 132 | Baltimore (city) | 39 21 26 N | 076 41 09 W |
| Ohr Knesseth Israel Anshe Spharo Congregation | Church | 135 | Baltimore (city) | 39 20 56 N | 076 41 20 W |
| Old Friends Meeting House | Church | 8 | Baltimore (city) | 39 17 31 N | 076 36 04 W |
| Old Goucher College Buildings | School | 43 | Baltimore (city) | 39 18 57 N | 076 36 58 W |
| Old Otterbein United Methodist Church | Church | 8 | Baltimore (city) | 39 17 04 N | 076 37 02 W |
| Old Town | Populated Place | 6 | Baltimore (city) | 39 17 38 N | 076 36 26 W |
| Old Town Medical Center | Hospital | 12 | Baltimore (city) | 39 17 52 N | 076 36 02 W |
| Olive Branch United Methodist Church | Church | 10 | Baltimore (city) | 39 16 20 N | 076 36 52 W |
| Oliver Cromwell School | School | 40 | Baltimore (city) | 39 18 53 N | 076 36 26 W |
| Oliver Perry Public School (historical) | School | 8 | Baltimore (city) | 39 16 30 N | 076 36 50 W |
| Open Bible Gospel Tabernacle | Church | 100 | Baltimore (city) | 39 21 21 N | 076 33 32 W |
| Orangeville | Populated Place | 21 | Baltimore (city) | 39 17 55 N | 076 32 59 W |
| Orangeville Methodist Church | Church | 31 | Baltimore (city) | 39 18 09 N | 076 33 44 W |
| Oriole Park at Camden Yards | Locale | 11 | Baltimore (city) | 39 17 01 N | 076 37 18 W |
| Otterbein Memorial United Brethren in Christ Church | Church | 93 | Baltimore (city) | 39 20 03 N | 076 37 59 W |
| Our Lady of Fatima Roman Catholic Church | Church | 32 | Baltimore (city) | 39 17 28 N | 076 32 22 W |
| Our Lady of Fatima School | School | 35 | Baltimore (city) | 39 17 27 N | 076 32 21 W |
| Our Lady of Good Counsel Roman Catholic Church | Church | 6 | Baltimore (city) | 39 16 08 N | 076 35 34 W |
| Our Lady of Good Counsel School | School | 6 | Baltimore (city) | 39 16 08 N | 076 35 35 W |
| Our Lady of Lourdes Catholic Church | Church | 121 | Baltimore (city) | 39 19 34 N | 076 40 26 W |
| Our Lady of Lourdes School | School | 121 | Baltimore (city) | 39 19 34 N | 076 40 26 W |
| Our Lady of Pompeis Roman Catholic Church | Church | 25 | Baltimore (city) | 39 17 23 N | 076 34 02 W |
| Our Lady of Pompeis School | School | 25 | Baltimore (city) | 39 17 24 N | 076 34 02 W |
| Our Lady of Victory Church | Church | 41 | Baltimore (city) | 39 16 26 N | 076 40 15 W |
| Our Saviour Evangelical Lutheran Church | Church | 134 | Baltimore (city) | 39 20 27 N | 076 41 02 W |
| Overlea Baptist Church | Church | 76 | Baltimore (city) | 39 21 28 N | 076 31 51 W |
| Overlea United Methodist Church | Church | 81 | Baltimore (city) | 39 21 29 N | 076 31 57 W |
| Paca School | School | 11 | Baltimore (city) | 39 17 41 N | 076 34 45 W |
| Pall Mall Playground | Park | 128 | Baltimore (city) | 39 20 34 N | 076 39 57 W |
| Park Community United Church of Christ | Church | 130 | Baltimore (city) | 39 19 54 N | 076 41 34 W |
| Park Heights Avenue Academy | School | 127 | Baltimore (city) | 39 20 01 N | 076 39 42 W |
| Park Heights Baptist Temple | Church | 133 | Baltimore (city) | 39 20 51 N | 076 40 17 W |
| Park Heights Elementary School | School | 132 | Baltimore (city) | 39 20 48 N | 076 40 26 W |
| Park School | School | 99 | Baltimore (city) | 39 19 12 N | 076 39 49 W |
| Parkside Methodist Church | Church | 26 | Baltimore (city) | 39 19 29 N | 076 33 42 W |
| Parkside Shopping Center | Locale | 30 | Baltimore (city) | 39 19 21 N | 076 32 52 W |
| Parkwood Cemetery | Cemetery | 88 | Baltimore (city) | 39 22 07 N | 076 31 57 W |
| Partlett Longworth Moore Library | Building | | Baltimore (city) | 39 18 38 N | 076 39 28 W |
| Patapsco Plaza Shopping Center | Locale | 33 | Baltimore (city) | 39 15 01 N | 076 38 26 W |
| Patapsco Sewage Treatment Works | Locale | 4 | Baltimore (city) | 39 13 59 N | 076 33 58 W |
| Patrick Henry School | School | 31 | Baltimore (city) | 39 18 15 N | 076 35 07 W |
| Patterson High School | School | 31 | Baltimore (city) | 39 17 33 N | 076 32 16 W |
| Patterson Park | Park | 6 | Baltimore (city) | 39 17 16 N | 076 34 43 W |
| Patterson Park Baptist Church | Church | 21 | Baltimore (city) | 39 17 10 N | 076 34 22 W |
| Patterson Park Branch Enoch Pratt Free Library | Building | 11 | Baltimore (city) | 39 17 39 N | 076 34 37 W |
| Patterson School | School | 16 | Baltimore (city) | 39 17 08 N | 076 34 57 W |
| Patterson Station Baltimore Post Office | Post Office | 10 | Baltimore (city) | 39 17 16 N | 076 35 36 W |
| Patterson Village Shopping Center | Locale | 135 | Baltimore (city) | 39 21 17 N | 076 42 12 W |
| Paul Laurence Dunbar High School | School | 12 | Baltimore (city) | 39 17 43 N | 076 35 55 W |
| Paul Laurence Dunbar Middle School | School | 13 | Baltimore (city) | 39 17 47 N | 076 35 54 W |
| Payne African Methodist Episcopal Church | Church | 45 | Baltimore (city) | 39 18 23 N | 076 37 55 W |
| Peabody Institute (historical) | School | 22 | Baltimore (city) | 39 17 49 N | 076 36 54 W |
| Pecks Branch Dam | Dam | 112 | Baltimore (city) | 39 19 24 N | 076 40 17 W |
| Penn Station | Building | 19 | Baltimore (city) | 39 18 27 N | 076 36 57 W |
| Pennsylvania Avenue African Methodist Episcopal Zion Church | Church | 35 | Baltimore (city) | 39 17 55 N | 076 37 45 W |
| Pennsylvania Avenue Branch Enoch Pratt Free Library | Building | 65 | Baltimore (city) | 39 18 34 N | 076 38 33 W |
| Pentecost Baptist Church | Church | 63 | Baltimore (city) | 39 18 22 N | 076 39 56 W |
| Pentecostal Holiness Church | Church | 106 | Baltimore (city) | 39 21 51 N | 076 35 13 W |
| Percy Julian Science Center | Building | | Baltimore (city) | 39 18 35 N | 076 39 28 W |
| Perkins Square Baptist Church | Church | 49 | Baltimore (city) | 39 17 42 N | 076 39 25 W |
| Physical Education Complex | Locale | | Baltimore (city) | 39 18 35 N | 076 39 28 W |
| Pickwick Jewish Center | Church | 123 | Baltimore (city) | 39 22 08 N | 076 40 49 W |
| Pier 1 | Locale | 0 | Baltimore (city) | 39 17 08 N | 076 36 39 W |
| Pier 2 | Locale | 0 | Baltimore (city) | 39 17 08 N | 076 36 33 W |
| Pier 3 | Locale | 1 | Baltimore (city) | 39 17 06 N | 076 36 30 W |
| Pier 4 | Locale | 1 | Baltimore (city) | 39 17 07 N | 076 36 25 W |