What are the Amherst, Maine Zip Codes for 2020, 2019Primary Zip Codes for AmherstZip CodePrimary CitySecondary City04605EllsworthAmherst, Fletchers Landing Twp, Fletchers Ldg, Lamoine, Mariaville, Osborn, Otis, Trenton, WalthamCities sharing Zip Codes with AmherstZip CodePrimary CitySecondary CityMore Information04605EllsworthAmherst04605EllsworthFletchers Landing Twp04605EllsworthFletchers Ldg04605EllsworthLamoine04605EllsworthMariaville04605EllsworthOsborn04605EllsworthOtis04605EllsworthTrenton04605EllsworthWalthamAdvertisements