Below is a list of Fullerton CA zip codes. For your research we have also included Fullerton Area Code, Time Zone, UTC and the local Orange County FIPS Code. Each Fullerton California zip code has a center Longitude / Latitude point (the Fullerton center is -117.92400360107 / 33.870300292969). For your convenience we have also indicated if that zip code in Fullerton observes Daylight Savings time.