Below is a list of Sheldon IA zip codes. For your research we have also included Sheldon Area Code, Time Zone, UTC and the local Obrien County FIPS Code. Each Sheldon Iowa zip code has a center Longitude / Latitude point (the Sheldon center is -95.842102050781 / 43.186000823975). For your convenience we have also indicated if that zip code in Sheldon observes Daylight Savings time.