Below is a list of Saint Olaf IA zip codes. For your research we have also included Saint Olaf Area Code, Time Zone, UTC and the local Clayton County FIPS Code. Each Saint Olaf Iowa zip code has a center Longitude / Latitude point (the Saint Olaf center is -91.386100769043 / 42.928398132324). For your convenience we have also indicated if that zip code in Saint Olaf observes Daylight Savings time.