What are the Big Falls, Minnesota Zip Codes for 2020, 2019Primary Zip Codes for Big FallsZip CodePrimary CitySecondary City56627Big FallsBig Falls, Grand Falls, Nett RiverCities sharing Zip Codes with Big FallsZip CodePrimary CitySecondary CityMore Information56627Big FallsGrand Falls56627Big FallsNett RiverAdvertisements