Ontario Locations What Is The Closest US Costco Location To Toronto, Ontario?

What is the closest US Costco location to Toronto, Ontario? - ontario locations

I know the Metropolitan Detroit around the unit are just 4.30. With the Costco website with maps, street only, it is difficult to determine whether any of the Central New York, Pennsylvania and northeastern Ohio are places closer to Toronto this with a Buffalo Niagara and across the border? Thank you. I appreciate the Costco locations in Ontario.