St. Lawrence County, a delightfully rural mix of farms, forests and small towns, is the largest county in New York State and the fifth largest United States county east of the Mississippi River. Canton, the county seat, is located about 25 miles from the St. Lawrence River. Our "Maple City", Ogdensburg, and the Village of Massena are located on the St. Lawrence. The beautiful St. Lawrence forms the boundary between our county and our neighboring counties in Ontario, Canada. The northern gateway to the fabulous Thousand Islands area is found in our river Towns of Morristown and Hammond.