Below is a list of Knightsen CA zip codes. For your research we have also included Knightsen Area Code, Time Zone, UTC and the local Contra Costa County FIPS Code. Each Knightsen California zip code has a center Longitude / Latitude point (the Knightsen center is -121.66699981689 / 37.968799591064). For your convenience we have also indicated if that zip code in Knightsen observes Daylight Savings time.