Below is a list of Simi Valley CA zip codes. For your research we have also included Simi Valley Area Code, Time Zone, UTC and the local Ventura County FIPS Code. Each Simi Valley California zip code has a center Longitude / Latitude point (the Simi Valley center is -118.71800231934 / 34.28630065918). For your convenience we have also indicated if that zip code in Simi Valley observes Daylight Savings time.