Store Locator Garnavillo Mni Mart609 S Main StreetGarnavillo, IA 52049 Contact Phone: 563-964-2356 Get Directions Amenities Convenience Store 24 Hour Pumps Fuel Types Gasoline Diesel Fuel Prices Regular $3.09 as of 7/6/2025 4:33:55 PM Diesel $3.60 as of 7/6/2025 4:33:55 PM Accepted Payments American Express Discover FAST STOP Cards Gift Card Mastercard Visa Voyager Wright Express