Below is a list of Pomona CA zip codes. For your research we have also included Pomona Area Code, Time Zone, UTC and the local Los Angeles County FIPS Code. Each Pomona California zip code has a center Longitude / Latitude point (the Pomona center is -117.75 / 34.055099487305). For your convenience we have also indicated if that zip code in Pomona observes Daylight Savings time.