Geography thumb|right|Lake Anasagunticook in 1911 According to the United States Census Bureau, the town has an area of , of which is land and is water. Situated beside Lake Anasagunticook, Canton is drained by Whitney Brook and the Androscoggin River.
Geography thumb|right|Lake Anasagunticook in 1911 According to the United States Census Bureau the town has an area of  of which is land and is water. Situated beside Lake Anasagunticook Canton is drained by Whitney Brook and the Androscoggin River.