Below is a list of Irene TX zip codes. For your research we have also included Irene Area Code, Time Zone, UTC and the local Hill County FIPS Code. Each Irene Texas zip code has a center Longitude / Latitude point (the Irene center is -96.873100280762 / 31.992000579834). For your convenience we have also indicated if that zip code in Irene observes Daylight Savings time.