Below is a list of Willows CA zip codes. For your research we have also included Willows Area Code, Time Zone, UTC and the local Glenn County FIPS Code. Each Willows California zip code has a center Longitude / Latitude point (the Willows center is -122.20099639893 / 39.514099121094). For your convenience we have also indicated if that zip code in Willows observes Daylight Savings time.