ZIP Code 78640 is located in the county of Hays in the state of Texas. 78640 ZIP Code is spread between the coordinates of +29.9985815 Latitude and -97.84777572 Longitude. 78640 ZIP Code is part of the 512 area code. There is 1 postal office in zip code 78640.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 78640. Always when you mail a package or a letter, be attentive to mention the preferred or acceptable cities. Using any city in the list of unacceptable cities may result in unforseen delays.