What are the Locke Mills, Pennsylvania Zip Codes for 2020, 2019Primary Zip Codes for Locke MillsZip CodePrimary CitySecondary City17063MilroyLocke Mills, Siglerville, Naginey, RoseannCities sharing Zip Codes with Locke MillsZip CodePrimary CitySecondary CityMore Information17063MilroyLocke Mills17063MilroyNaginey17063MilroyRoseann17063MilroySiglerville Siglerville population stats Advertisements