Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Poplar Springs Cemetery | Cemetery | 141 | Copiah | 31 58 03 N | 090 19 54 W |
| Poplar Springs Cemetery | Cemetery | 132 | Copiah | 31 47 40 N | 090 14 54 W |
| Poplar Springs Cemetery | Cemetery | 113 | Rankin | 32 03 14 N | 090 11 15 W |
| Poplar Springs Cemetery | Cemetery | 144 | Simpson | 31 58 53 N | 089 50 40 W |
| Poplar Springs Cemetery | Cemetery | 105 | Tallahatchie | 33 54 01 N | 090 03 37 W |
| Poplar Springs Church | Church | 147 | Calhoun | 33 59 35 N | 089 11 43 W |
| Poplar Springs Church | Church | 112 | Carroll | 33 27 02 N | 089 54 56 W |
| Poplar Springs Church | Church | 129 | Copiah | 31 47 39 N | 090 14 57 W |
| Poplar Springs Church | Church | 173 | Itawamba | 34 24 01 N | 088 12 58 W |
| Poplar Springs Church | Church | 180 | Neshoba | 32 45 16 N | 088 58 11 W |
| Poplar Springs Church | Church | 140 | Newton | 32 18 20 N | 089 05 45 W |
| Poplar Springs Church | Church | 145 | Simpson | 31 58 55 N | 089 50 41 W |
| Poplar Springs Church | Church | 68 | Wayne | 31 52 57 N | 088 30 22 W |
| Poplar Springs Church (historical) | Church | 114 | Rankin | 32 03 16 N | 090 11 15 W |
| Poplar Springs Drive Baptist Church | Church | 141 | Lauderdale | 32 24 02 N | 088 42 14 W |
| Poplar Springs Drive United Methodist Church | Church | 136 | Lauderdale | 32 23 56 N | 088 42 18 W |
| Poplar Springs Elementary School | School | 142 | Lauderdale | 32 24 04 N | 088 42 24 W |
| Poplar Springs Methodist Church | Church | 82 | Monroe | 34 04 06 N | 088 43 07 W |
| Poplar Springs School (historical) | School | 142 | Jefferson Davis | 31 44 17 N | 089 51 04 W |
| Poplar Springs School (historical) | School | 164 | Newton | 32 29 28 N | 089 14 23 W |
| Poplar Springs Union Church | Church | 121 | Montgomery | 33 22 20 N | 089 34 19 W |
| Poplarville | Populated Place | 97 | Pearl River | 30 50 25 N | 089 32 03 W |
| Poplarville City Hall | Building | 98 | Pearl River | 30 50 42 N | 089 31 57 W |
| Poplarville Elementary School | School | 97 | Pearl River | 30 50 21 N | 089 32 11 W |
| Poplarville High School | School | 105 | Pearl River | 30 49 58 N | 089 31 35 W |
| Poplarville Junior High School | School | 105 | Pearl River | 30 49 55 N | 089 31 34 W |
| Poplarville Post Office | Post Office | 105 | Pearl River | 30 50 34 N | 089 32 06 W |
| Poplarville-Pearl River County Airport | Airport | 91 | Pearl River | 30 47 10 N | 089 30 16 W |
| Popp's Ferry Elementary School | School | 8 | Harrison | 30 24 21 N | 088 58 19 W |
| Pops Ferry (historical) | Crossing | 5 | Harrison | 30 24 56 N | 088 58 34 W |
| Pops Ferry Bridge | Bridge | 6 | Harrison | 30 24 57 N | 088 58 34 W |
| Pops Ferry Park | Park | 8 | Harrison | 30 26 16 N | 088 57 57 W |
| Pops Ferry Shopping Center | Locale | 8 | Harrison | 30 24 08 N | 088 58 38 W |
| Popsons (historical) | Populated Place | 44 | Coahoma | 34 00 18 N | 090 28 00 W |
| Popular Ridge Lake | Lake | 101 | Leake | 32 39 31 N | 089 34 05 W |
| Popular Springs (historical) | Locale | 149 | Webster | 33 40 20 N | 089 12 45 W |
| Popular Springs Cemetery | Cemetery | 135 | Tishomingo | 34 57 26 N | 088 14 56 W |
| Popular Springs Church | Church | 112 | Calhoun | 33 44 33 N | 089 11 32 W |
| Popular Springs Church | Church | 97 | Holmes | 33 02 13 N | 090 10 21 W |
| Popular Springs Church | Church | 70 | Tallahatchie | 34 09 04 N | 090 04 31 W |
| Popular Springs Church | Church | 138 | Tishomingo | 34 57 27 N | 088 14 58 W |
| Popular Springs Creek | Stream | | Union | 34 23 20 N | 088 57 45 W |
| Popular Springs School (historical) | School | 156 | Tishomingo | 34 57 40 N | 088 14 23 W |
| Port Anderson (historical) | Populated Place | 33 | Washington | 33 31 33 N | 091 12 06 W |
| Port Gibson | Populated Place | 36 | Claiborne | 31 57 40 N | 090 59 02 W |
| Port Gibson Baptist Church | Church | 32 | Claiborne | 31 57 41 N | 090 58 54 W |
| Port Gibson Catholic Cemetery | Cemetery | 34 | Claiborne | 31 57 21 N | 090 58 44 W |
| Port Gibson City Hall | Building | 40 | Claiborne | 31 57 22 N | 090 58 55 W |
| Port Gibson High School | School | 42 | Claiborne | 31 57 11 N | 090 59 18 W |
| Port Gibson Methodist Church | Church | 40 | Claiborne | 31 57 27 N | 090 58 58 W |
| Port Gibson Sewage Lagoon Dam | Dam | 27 | Claiborne | 31 58 13 N | 090 59 06 W |
| Port of Gulfport | Harbor | 0 | Harrison | 30 21 41 N | 089 05 35 W |
| Porter and Blankenships Store (historical) | Locale | 109 | Panola | 34 31 47 N | 090 09 05 W |
| Porter Bayou | Stream | | Sunflower | 33 29 08 N | 090 37 14 W |
| Porter Cemetery | Cemetery | 126 | Holmes | 33 14 27 N | 089 56 41 W |
| Porter Creek | Stream | | Franklin | 31 26 34 N | 090 51 18 W |
| Porter Creek | Stream | | Hinds | 32 26 53 N | 090 35 26 W |
| Porter Creek | Stream | | Tate | 34 36 22 N | 090 01 31 W |
| Porter Lake | Lake | 42 | Bolivar | 33 56 45 N | 090 52 06 W |
| Porter Lake Dam | Dam | 51 | Claiborne | 31 53 25 N | 090 49 12 W |
| Portera Lake Dam | Dam | 64 | Monroe | 33 35 00 N | 088 45 42 W |
| Porters Bridge (historical) | Bridge | 54 | Panola | 34 17 55 N | 090 03 08 W |
| Porters Chapel | Church | 51 | Warren | 32 17 42 N | 090 51 40 W |
| Porters Chapel | Church | 55 | Warren | 32 17 49 N | 090 51 36 W |
| Porters Chapel | Populated Place | 47 | Warren | 32 17 38 N | 090 51 41 W |
| Porters Creek | Stream | | Tippah | 35 11 54 N | 088 54 27 W |
| Porters Ferry School (historical) | School | 52 | Panola | 34 17 16 N | 090 05 51 W |
| Portersville (historical) | Locale | 109 | Franklin | 31 32 11 N | 091 07 20 W |
| Porterton | Populated Place | 107 | Lafayette | 34 17 17 N | 089 27 05 W |
| Porterville | Populated Place | 61 | Kemper | 32 41 16 N | 088 28 20 W |
| Porterville High School (historical) | School | 64 | Kemper | 32 41 19 N | 088 28 10 W |
| Porterville Lookout Tower | Tower | 118 | Kemper | 32 41 08 N | 088 30 36 W |
| Porterville Methodist Church | Church | 65 | Kemper | 32 41 20 N | 088 28 16 W |
| Porterville Post Office | Post Office | 61 | Kemper | 32 41 18 N | 088 28 20 W |
| Portwood Church | Church | 40 | Leflore | 33 35 22 N | 090 11 14 W |
| Portwood Landing (historical) | Locale | 37 | Leflore | 33 36 09 N | 090 13 55 W |
| Posey Branch | Stream | | Itawamba | 34 25 01 N | 088 14 11 W |
| Posey Cemetery | Cemetery | 127 | Monroe | 33 54 49 N | 088 23 36 W |
| Posey Mound | Locale | 50 | Quitman | 34 20 04 N | 090 18 05 W |
| Posey Mound Cemetery | Cemetery | 49 | Quitman | 34 19 26 N | 090 18 19 W |
| Possum Bayou | Gut | 41 | Tallahatchie | 33 50 16 N | 090 11 27 W |
| Possum Branch | Stream | | Lafayette | 34 11 25 N | 089 17 06 W |
| Possum Corner | Populated Place | 33 | Wilkinson | 31 21 07 N | 091 17 59 W |
| Possum Corner Oil Field | Oilfield | 46 | Wilkinson | 31 20 01 N | 091 19 40 W |
| Possum Creek | Stream | | Lauderdale | 32 16 05 N | 088 52 41 W |
| Possum Creek | Stream | | Lauderdale | 32 31 42 N | 088 30 28 W |
| Possum Creek | Stream | | Monroe | 33 59 00 N | 088 19 28 W |
| Possum Creek | Stream | | Union | 34 33 23 N | 088 59 36 W |
| Possum Track Church | Church | 113 | DeSoto | 34 45 53 N | 089 57 03 W |
| Possum Trot | Populated Place | 122 | Pontotoc | 34 18 08 N | 089 05 04 W |
| Possum Trot Church (historical) | Church | 171 | Newton | 32 27 26 N | 089 11 44 W |
| Possumneck | Populated Place | 102 | Attala | 33 08 28 N | 089 44 30 W |
| Possumneck School (historical) | School | 100 | Attala | 33 08 23 N | 089 44 49 W |
| Post | Locale | 151 | Lauderdale | 32 32 08 N | 088 54 26 W |
| Post Estates (subdivision) | Populated Place | 83 | Lee | 34 15 20 N | 088 40 56 W |
| Post Oak (historical) | Locale | 72 | Yalobusha | 33 55 53 N | 089 34 05 W |
| Postoak Church (historical) | Church | 116 | Chickasaw | 34 03 07 N | 089 03 07 W |
| Potacocawa Creek Structure Y-3la-17 Dam | Dam | 66 | Carroll | 33 40 06 N | 090 00 48 W |
| Potacocawa Structure Y-31a-34 Dam | Dam | 99 | Carroll | 33 40 18 N | 089 51 24 W |
| Potacocawa Watershed Y-31a-13 Dam | Dam | 76 | Carroll | 33 38 12 N | 089 52 12 W |
| Potacocawa Watershed Y-3la-1 Dam | Dam | 59 | Carroll | 33 39 48 N | 090 01 42 W |
| Potacocawa Watershed Y-3la-2 Dam | Dam | 62 | Carroll | 33 39 12 N | 090 00 30 W |
| Potacocowa Creek | Stream | | Carroll | 33 38 00 N | 090 06 28 W |
| Potacocowa Creek Watershed Y-31a-26 Dam | Dam | 69 | Carroll | 33 40 06 N | 089 59 42 W |
| Potacocowa Structure Y-31a-5 Dam | Dam | 102 | Carroll | 33 35 54 N | 089 51 36 W |
| Potacocowa Watershed Y-31a-10 Dam | Dam | 80 | Carroll | 33 38 42 N | 089 53 24 W |
| Potacocowa Watershed Y-31a-11 Dam | Dam | 81 | Carroll | 33 37 30 N | 089 53 00 W |
| Potacocowa Watershed Y-31a-12 Dam | Dam | 87 | Carroll | 33 37 00 N | 089 51 54 W |
| Potacocowa Watershed Y-31a-15 Dam | Dam | 84 | Carroll | 33 39 48 N | 089 53 00 W |
| Potacocowa Watershed Y-31a-19 Dam | Dam | 68 | Carroll | 33 38 48 N | 089 56 48 W |