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U.S. ZIP Code 78516
5-digit United States postal code #78516, Alamo, TX
ZIP code 78516 is located in the city (place name) Alamo, сounty Hidalgo in the state of Texas. The population in ZIP code 78516 is 33722 and the population density is 342.3. ZIP code 78516 refers to сounty Hidalgo having сounty FIPS 48215, the ratio of people from different counties in this ZIP code is as follows: all county weights - 48215: 100%. In the area of the ZIP code 78516 valid time zone America/Chicago.