12 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 20657 | Lusby | 21,054 |
| 20639 | Huntingtown | 15,058 |
| 20678 | Prince Frederick | 12,874 |
| 20732 | Chesapeake Beach | 10,676 |
| 20736 | Owings | 9,274 |
| 20754 | Dunkirk | 7,344 |
| 20685 | Saint Leonard | 6,750 |
| 20676 | Port Republic | 2,897 |
| 20689 | Sunderland | 1,884 |
| 20688 | Solomons | 1,170 |
| 20629 | Dowell | 1,072 |
| 20615 | Broomes Island | 524 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 12 ZCTAs in Calvert County, Maryland (US Census).