Below is a list of Royse City TX zip codes. For your research we have also included Royse City Area Code, Time Zone, UTC and the local Rockwall County FIPS Code. Each Royse City Texas zip code has a center Longitude / Latitude point (the Royse City center is -96.332000732422 / 32.969200134277). For your convenience we have also indicated if that zip code in Royse City observes Daylight Savings time.