20678 Zip code is used for Prince Frederick City in Calvert County, Maryland in Usa. The ZIP Codes / Postal Codes are Used by USPS (United States Postal Service known as “Post Office”, “ Usa Mail”, or” Postal Service”, an independent agency of the United States federal government responsible for providing postal service in the United States). Below is the detail for 20678, Prince Frederick City.
| Zip Code | : | 20678 |
| City Name | : | Prince Frederick |
| County Name | : | Calvert County |
| State Name | : | Maryland |
| Country Name | : | USA |
| Area Code | : | 410 |
| Time Zone | : | EST |
| Country Code | : | +1 |
| Currency | : | $ USA Dollor |
| ISO Code | : | USA |