What are the Central Valley, Washington Zip Codes for 2020, 2019Primary Zip Codes for Central ValleyZip CodePrimary CitySecondary City98370PoulsboCentral Valley, Breidablick, Island Lake, Lemolo, Pearson, Sandy Hook Park, Scandia, Virginia, LofallCities sharing Zip Codes with Central ValleyZip CodePrimary CitySecondary CityMore Information98370PoulsboBreidablick98370PoulsboCentral Valley98370PoulsboIsland Lake98370PoulsboLemolo98370PoulsboPearson98370PoulsboSandy Hook Park98370PoulsboScandia98370PoulsboVirginia98370PoulsboLofall Lofall population stats Advertisements