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U.S. ZIP Code 78548
5-digit United States postal code #78548, Grulla, TX
ZIP code 78548 is located in the city (place name) Grulla, сounty Starr in the state of Texas. The population in ZIP code 78548 is 675 and the population density is 66.6. ZIP code 78548 refers to сounty Starr having сounty FIPS 48427, the ratio of people from different counties in this ZIP code is as follows: all county weights - 48427: 100%. In the area of the ZIP code 78548 valid time zone America/Chicago.