Below is a list of Duncan AZ zip codes. For your research we have also included Duncan Area Code, Time Zone, UTC and the local Greenlee County FIPS Code. Each Duncan Arizona zip code has a center Longitude / Latitude point (the Duncan center is -109.103 / 32.7164). For your convenience we have also indicated if that zip code in Duncan observes Daylight Savings time. For more information on Duncan Arizona you will find helpful business links and searches.