Below is a list of Frio County TX zip codes. For your research we have also included Frio County Area Code, Time Zone, UTC and the local County FIPS Code. Each Frio County Texas zip code has a center Longitude / Latitude point (the Frio County center is -98.984703063965 / 28.949699401855). For your convenience we have also indicated if that zip code in Frio County observes Daylight Savings time.