Below is a list of Hickory Plains AR zip codes. For your research we have also included Hickory Plains Area Code, Time Zone, UTC and the local Prairie County FIPS Code. Each Hickory Plains Arkansas zip code has a center Longitude / Latitude point (the Hickory Plains center is -91.736801147461 / 34.989799499512). For your convenience we have also indicated if that zip code in Hickory Plains observes Daylight Savings time.