The town lies adjacent to the border between Canada and the United States. As there is no direct bridge or ferry connection from the island to Canada, there are no customs or immigration services available. Paired bridges connect the south end of the island to the town of Tonawanda, and another pair of bridges connects the northern end to the city of Niagara Falls in Niagara County. The two sets of bridges carry Interstate 190, a branch of the New York State Thruway (Interstate 90). In addition, New York State Route 324 (Grand Island Boulevard) is conjoined with I-190 at the southern bridges and reaches its western terminus in the northern part of Grand Island.