Below is a list of Hays County TX zip codes. For your research we have also included Hays County Area Code, Time Zone, UTC and the local County FIPS Code. Each Hays County Texas zip code has a center Longitude / Latitude point (the Hays County center is -97.96720123291 / 30.051500320435). For your convenience we have also indicated if that zip code in Hays County observes Daylight Savings time.