Below is a list of Winnetka CA zip codes. For your research we have also included Winnetka Area Code, Time Zone, UTC and the local Los Angeles County FIPS Code. Each Winnetka California zip code has a center Longitude / Latitude point (the Winnetka center is -118.57099914551 / 34.213199615479). For your convenience we have also indicated if that zip code in Winnetka observes Daylight Savings time.