Below is a list of Casa Grande AZ zip codes. For your research we have also included Casa Grande Area Code, Time Zone, UTC and the local Pinal County FIPS Code. Each Casa Grande Arizona zip code has a center Longitude / Latitude point (the Casa Grande center is -111.72499847412 / 32.879600524902). For your convenience we have also indicated if that zip code in Casa Grande observes Daylight Savings time.