Below is a list of Smithland IA zip codes. For your research we have also included Smithland Area Code, Time Zone, UTC and the local Woodbury County FIPS Code. Each Smithland Iowa zip code has a center Longitude / Latitude point (the Smithland center is -95.930702209473 / 42.228900909424). For your convenience we have also indicated if that zip code in Smithland observes Daylight Savings time.