21104 Zip code is used for Henryton Area Code City in Howard 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 21104, Henryton Area Code City.
| Zip Code | : | 21104 |
| City Name | : | Henryton Area Code |
| County Name | : | Howard County |
| State Name | : | Maryland |
| Country Name | : | USA |
| Area Code | : | 410 |
| Time Zone | : | EST |
| Country Code | : | +1 |
| Currency | : | $ USA Dollor |
| ISO Code | : | USA |