78666 Zip code is used for San Marcos Area Code City in Hays County, Texas 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 78666, San Marcos Area Code City.
| Zip Code | : | 78666 |
| City Name | : | San Marcos Area Code |
| County Name | : | Hays County |
| State Name | : | Texas |
| Country Name | : | USA |
| Area Code | : | 512 |
| Time Zone | : | CST |
| Country Code | : | +1 |
| Currency | : | $ USA Dollor |
| ISO Code | : | USA |