Below is a list of Dumas AR zip codes. For your research we have also included Dumas Area Code, Time Zone, UTC and the local Desha County FIPS Code. Each Dumas Arkansas zip code has a center Longitude / Latitude point (the Dumas center is -91.483497619629 / 33.883399963379). For your convenience we have also indicated if that zip code in Dumas observes Daylight Savings time.