Below is a list of Humphrey AR zip codes. For your research we have also included Humphrey Area Code, Time Zone, UTC and the local Jefferson County FIPS Code. Each Humphrey Arkansas zip code has a center Longitude / Latitude point (the Humphrey center is -91.6607 / 34.3789). For your convenience we have also indicated if that zip code in Humphrey observes Daylight Savings time. For more information on Humphrey Arkansas you will find helpful business links and searches.