Below is a list of Alamo TX zip codes. For your research we have also included Alamo Area Code, Time Zone, UTC and the local Hidalgo County FIPS Code. Each Alamo Texas zip code has a center Longitude / Latitude point (the Alamo center is -98.116401672363 / 26.182500839233). For your convenience we have also indicated if that zip code in Alamo observes Daylight Savings time.