| City Name | County | Zip Code |
| Park Hall | Saint Mary's | 20667 |
| Parkton | Baltimore | 21120 |
| Parkville | Baltimore | 21234 |
| Parsonsburg | Wicomico | 21849 |
| Pasadena | Anne Arundel | 21122 |
| Patuxent | Charles | 21113 |
| Patuxent River | Saint Mary's | 20670 |
| Pectonville | Washington | 21711 |
| Perry Hall | Baltimore | 21128 |
| Perry Point | Cecil | 21902 |
| Perryman | Harford | 21130 |
| Perryville | Cecil | 21903 |
| Phoenix | Baltimore | 21131 |
| Pikesville | Baltimore | 21208 |
| Pinesburg | Washington | 21795 |
| Piney Hill | Baltimore | 21111 |
| Piney Point | Saint Mary's | 20674 |
| Pisgah | Charles | 20640 |
| Pittsville | Wicomico | ***** |
| Pleasant Grove | Baltimore | 21136 |
| Pocomoke City | Worcester | 21851 |
| Point of Rocks | Frederick | 21777 |
| Pomfret | Charles | 20675 |
| Pondsville | Washington | 21783 |
| Poole | Harford | 21034 |
| Poolesville | Montgomery | 20837 |
| Poplar Springs | Howard | 21771 |
| Port Deposit | Cecil | 21904 |
| Port Herman | Cecil | 21915 |
| Port Republic | Calvert | 20676 |
| Port Tobacco | Charles | 20677 |
| Porterstown | Washington | 21756 |
| Potomac | Montgomery | ***** |
| Potomac Park | Allegany | 21502 |
| Powellville | Wicomico | 21852 |
| Preston | Caroline | 21655 |
| Price | Queen Anne's | 21656 |
| Prince Frederick | Calvert | ***** |
| Princess Anne | Somerset | 21853 |
| Providence | Cecil | ***** |
| Pumphrey | Anne Arundel | 21225 |
| Putnam | Harford | 21050 |
| Pylesville | Harford | 21132 |
|
Delmarweb, (Maryland) Copyright © 1997 - 2008 All Rights Reserved |