Below is a list of Keiser AR zip codes. For your research we have also included Keiser Area Code, Time Zone, UTC and the local Mississippi County FIPS Code. Each Keiser Arkansas zip code has a center Longitude / Latitude point (the Keiser center is -90.0998 / 35.6977). For your convenience we have also indicated if that zip code in Keiser observes Daylight Savings time. For more information on Keiser Arkansas you will find helpful business links and searches.