21111 Zip code is used for Hereford Area Code City in Baltimore 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 21111, Hereford Area Code City.
| Zip Code | : | 21111 |
| City Name | : | Hereford Area Code |
| County Name | : | Baltimore County |
| State Name | : | Maryland |
| Country Name | : | USA |
| Area Code | : | 410 |
| Time Zone | : | EST |
| Country Code | : | +1 |
| Currency | : | $ USA Dollor |
| ISO Code | : | USA |