ZIP Code 94583
San Ramon, California · Contra Costa County
No39993
Zip94583
TypeSTANDARD
Decommissioned0
Primary CitySan Ramon
Acceptable Cities—
Unacceptable Cities—
StateCA
LstateCalifornia
CountyContra Costa County
TimezoneAmerica/Los_Angeles
Area Codes341, 510, 925
World RegionNA
CountryUS
Latitude37,78
Longitude-121,99