Below is a list of Smithville AR zip codes. For your research we have also included Smithville Area Code, Time Zone, UTC and the local Lawrence County FIPS Code. Each Smithville Arkansas zip code has a center Longitude / Latitude point (the Smithville center is -91.2748 / 36.0958). For your convenience we have also indicated if that zip code in Smithville observes Daylight Savings time. For more information on Smithville Arkansas you will find helpful business links and searches.