Below is a list of Hardin County TX zip codes. For your research we have also included Hardin County Area Code, Time Zone, UTC and the local County FIPS Code. Each Hardin County Texas zip code has a center Longitude / Latitude point (the Hardin County center is -94.431098937988 / 30.330400466919). For your convenience we have also indicated if that zip code in Hardin County observes Daylight Savings time.