Below is a list of Danville CA zip codes. For your research we have also included Danville Area Code, Time Zone, UTC and the local Contra Costa County FIPS Code. Each Danville California zip code has a center Longitude / Latitude point (the Danville center is -121.96800231934 / 37.816101074219). For your convenience we have also indicated if that zip code in Danville observes Daylight Savings time.