| Locality | Post Code |
|---|---|
| Bel Alton, Charles | 20611 |
| Benedict, Charles | 20612 |
| Bryans Road, Charles | 20616 |
| Bryantown, Charles | 20617 |
| Cobb Island, Charles | 20625 |
| Dentsville, Charles | 20646 |
| Faulkner, Charles | 20632 |
| Hughesville, Charles | 20637 |
| Indian Head, Charles | 20640 |
| Ironsides, Charles | 20643 |
| Issue, Charles | 20645 |
| La Plata, Charles | 20646 |
| Marbury, Charles | 20658 |
| Marshall Hall, Charles | 20616 |
| Mount Victoria, Charles | 20661 |
| Nanjemoy, Charles | 20662 |
| Newburg, Charles | 20664 |
| Pisgah, Charles | 20640 |
| Pomfret, Charles | 20675 |
| Port Tobacco, Charles | 20677 |
| Rison, Charles | 20658 |
| Rock Point, Charles | 20682 |
| Saint Charles, Charles | 20603 |
| Swan Point, Charles | 20645 |
| Waldorf, Charles | 20601, 20602, 20603 |
| Welcome, Charles | 20693 |