Below is a list of Vacaville CA zip codes. For your research we have also included Vacaville Area Code, Time Zone, UTC and the local Solano County FIPS Code. Each Vacaville California zip code has a center Longitude / Latitude point (the Vacaville center is -121.98100280762 / 38.355201721191). For your convenience we have also indicated if that zip code in Vacaville observes Daylight Savings time.