12 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 20657 | Lusby | 20,519 |
| 20639 | Huntingtown | 14,969 |
| 20678 | Prince Frederick | 12,686 |
| 20732 | Chesapeake Beach | 10,940 |
| 20736 | Owings | 9,775 |
| 20754 | Dunkirk | 7,512 |
| 20685 | Saint Leonard | 6,481 |
| 20676 | Port Republic | 3,412 |
| 20689 | Sunderland | 2,046 |
| 20688 | Solomons | 1,113 |
| 20629 | Dowell | 1,067 |
| 20615 | Broomes Island | 422 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 12 ZCTAs in Calvert County, Maryland (US Census).