Below is a list of Sulphur Rock AR zip codes. For your research we have also included Sulphur Rock Area Code, Time Zone, UTC and the local Independence County FIPS Code. Each Sulphur Rock Arkansas zip code has a center Longitude / Latitude point (the Sulphur Rock center is -91.500801086426 / 35.751399993896). For your convenience we have also indicated if that zip code in Sulphur Rock observes Daylight Savings time.