Below is a list of Johnson AR zip codes. For your research we have also included Johnson Area Code, Time Zone, UTC and the local Washington County FIPS Code. Each Johnson Arkansas zip code has a center Longitude / Latitude point (the Johnson center is -94.1639 / 36.1306). For your convenience we have also indicated if that zip code in Johnson observes Daylight Savings time. For more information on Johnson Arkansas you will find helpful business links and searches.