Below is a list of Fertile IA zip codes. For your research we have also included Fertile Area Code, Time Zone, UTC and the local Worth County FIPS Code. Each Fertile Iowa zip code has a center Longitude / Latitude point (the Fertile center is -93.423500061035 / 43.264400482178). For your convenience we have also indicated if that zip code in Fertile observes Daylight Savings time.