Geography

According to the United States Census Bureau, the city has a total area of 6.3 square miles (16.3 km²), of which, 5.9 square miles (15.4 km²) of it is land and 0.3 square miles (0.9 km²) of it is water. The total area is 5.41% water.
The city developed on both sides of the Mohawk River and Erie Canal. The Chuctanunda River flows into the Mohawk from the north at Amsterdam.
New York State Route 30, a north-south highway called Market Street in part, crosses the Mohawk River to link the main part of Amsterdam to the New York State Thruway. NY-30 also intersects east-west highways New York State Route 5 and New York State Route 67 in the city. New York State Route 5S passes along the south side of the Mohawk River.
Amsterdam is currently within New York's 20th congressional district.