22 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 20603 | Waldorf | 31,844 |
| 20602 | Waldorf | 28,331 |
| 20601 | Waldorf | 26,945 |
| 20646 | La Plata | 21,400 |
| 20695 | White Plains | 16,407 |
| 20640 | Indian Head | 10,685 |
| 20616 | Bryans Road | 8,057 |
| 20637 | Hughesville | 6,133 |
| 20622 | Charlotte Hall | 5,185 |
| 20664 | Newburg | 3,138 |
| 20662 | Nanjemoy | 2,129 |
| 20677 | Port Tobacco | 2,088 |
| 20675 | Pomfret | 1,796 |
| 20693 | Welcome | 1,496 |
| 20611 | Bel Alton | 1,219 |
| 20658 | Marbury | 866 |
| 20625 | Cobb Island | 849 |
| 20645 | Issue | 814 |
| 20632 | Faulkner | 485 |
| 20617 | Bryantown | 334 |
| 20612 | Benedict | 148 |
| 20661 | Mount Victoria | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 22 ZCTAs in Charles County, Maryland (US Census).