Below is a list of Farley IA zip codes. For your research we have also included Farley Area Code, Time Zone, UTC and the local Dubuque County FIPS Code. Each Farley Iowa zip code has a center Longitude / Latitude point (the Farley center is -91.006202697754 / 42.44469833374). For your convenience we have also indicated if that zip code in Farley observes Daylight Savings time.