What are the Groveton, New Hampshire Zip Codes for 2020, 2019Primary Zip Codes for GrovetonZip CodePrimary CitySecondary City03582GrovetonGroveton, Northumberland, Northumberlnd, StarkCities sharing Zip Codes with GrovetonZip CodePrimary CitySecondary CityMore Information03582GrovetonNorthumberland03582GrovetonNorthumberlnd03582GrovetonStarkAdvertisements