What are the Northfield, Maine Zip Codes for 2020, 2019Primary Zip Codes for NorthfieldZip CodePrimary CitySecondary City04654MachiasNorthfield, Marshfield, Roque Bluffs, WhitneyvilleCities sharing Zip Codes with NorthfieldZip CodePrimary CitySecondary CityMore Information04654MachiasMarshfield04654MachiasNorthfield04654MachiasRoque Bluffs04654MachiasWhitneyvilleAdvertisements