Zip Code Listings for Palo Alto, California The following are the areas codes and zip codes for Palo Alto, California 94301 (area code: 650)
94302 (area code: 650)
94303 (area code: 650)
94304 (area code: 650)
94305 (area code: 650)
94306 (area code: 650)
94309 (area code: 650)