Below is a list of Mount Hamilton CA zip codes. For your research we have also included Mount Hamilton Area Code, Time Zone, UTC and the local Santa Clara County FIPS Code. Each Mount Hamilton California zip code has a center Longitude / Latitude point (the Mount Hamilton center is -121.64099884033 / 37.341598510742). For your convenience we have also indicated if that zip code in Mount Hamilton observes Daylight Savings time.