The 21st Congressional District of New York is a congressional district for the United States House of Representatives that is currently represented by Republican Elise Stefanik. It includes all or parts of Clinton, Essex, Franklin, Fulton, Hamilton, Herkimer, Jefferson, Lewis, Saratoga, St. Lawrence, Warren, and Washington counties. It includes the cities of Ogdensburg, Plattsburgh and Watertown. The district includes most of the Adirondack Mountains and the Thousand Islands region. It borders Vermont to the east. It also includes Fort Drum of the US army.