ZIP Code 94557
Hayward, California · Alameda County
No39967
Zip94557
TypePO BOX
Decommissioned0
Primary CityHayward
Acceptable CitiesMount Eden
Unacceptable Cities—
StateCA
LstateCalifornia
CountyAlameda County
TimezoneAmerica/Los_Angeles
Area Codes510
World RegionNA
CountryUS
Latitude37,62
Longitude-122,1