Below is a list of Summit AR zip codes. For your research we have also included Summit Area Code, Time Zone, UTC and the local Marion County FIPS Code. Each Summit Arkansas zip code has a center Longitude / Latitude point (the Summit center is -92.74 / 36.2163). For your convenience we have also indicated if that zip code in Summit observes Daylight Savings time. For more information on Summit Arkansas you will find helpful business links and searches.