Below is a list of Greeley IA zip codes. For your research we have also included Greeley Area Code, Time Zone, UTC and the local Delaware County FIPS Code. Each Greeley Iowa zip code has a center Longitude / Latitude point (the Greeley center is -91.341598510742 / 42.584701538086). For your convenience we have also indicated if that zip code in Greeley observes Daylight Savings time.