ZIP Code 78591 is located in the county of Starr in the state of Texas. 78591 ZIP Code is spread between the coordinates of +26.6258119 Latitude and -98.51914832 Longitude. 78591 ZIP Code is part of the 956 area code. There are 0 postal offices in zip code 78591.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 78591. 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.