Below is a list of Belmont CA zip codes. For your research we have also included Belmont Area Code, Time Zone, UTC and the local San Mateo County FIPS Code. Each Belmont California zip code has a center Longitude / Latitude point (the Belmont center is -122.29399871826 / 37.512199401855). For your convenience we have also indicated if that zip code in Belmont observes Daylight Savings time.