Below is a list of Atascosa County TX zip codes. For your research we have also included Atascosa County Area Code, Time Zone, UTC and the local County FIPS Code. Each Atascosa County Texas zip code has a center Longitude / Latitude point (the Atascosa County center is -98.497802734375 / 28.93989944458). For your convenience we have also indicated if that zip code in Atascosa County observes Daylight Savings time.