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 $2.95 as of 6/18/2025 5:24:49 PM Diesel $3.40 as of 6/18/2025 5:24:49 PM Accepted Payments American Express Discover FAST STOP Cards Gift Card Mastercard Visa Voyager Wright Express