New York's 21st congressional district is a congressional district for the United States House of Representatives that is represented by Republican Elise Stefanik. On November 11, 2024, President Donald Trump announced his intention to nominate Stefanik to serve as the United States Ambassador to the United Nations. However, he withdrew the nomination on March 27, 2025, with former United States National Security Advisor and US representative Mike Waltz later being confirmed for the position. On December 19, 2025, Stefanik announced she would not seek re-election in the House of Representatives.

The district is primarily rural, but it also includes the cities of Ogdensburg, Glens Falls, Rome, and Plattsburgh. The district includes most of the Adirondack Mountains and Mohawk Valley region; prior to January 2025, it also included the Thousand Islands region. It borders Vermont to the east and Canada to the north. It also includes Fort Drum of the U.S. Army.

History

Up until 1980, the 21st district was located in Upper Manhattan (including parts of Harlem and Washington Heights), and The Bronx in New York City.

Between 1983 and 1993, the district comprised all of Putnam county, and parts of Dutchess, Orange, Westchester counties.

From 2003 to 2013, the district with that number contained most of the Capital District of New York. It included all or parts of Albany, Fulton, Montgomery, Rensselaer, Saratoga, Schenectady, and Schoharie counties.

From 2013 to present, Clinton, Essex, Franklin, Fulton, Hamilton, Herkimer, Lewis, Montgomery, Schoharie, St. Lawrence, Warren, and Washington counties, and parts of Jefferson, Otsego, and Saratoga counties have composed the district.

Counties, towns, and cities For the 119th and successive Congresses (based on the districts drawn following the New York Court of Appeals' December 2023 decision in Hoffman v New York State Ind. Redistricting. Commn.), the district contains all or portions of the following counties, towns, and cities.https://www2.census.gov/geo/maps/cong_dist/cd119/cd_based/ST36/CD119_NY21.pdf

Clinton County (15)

All 15 towns and cities Essex County (18) All 18 towns Franklin County (19) All 19 towns Fulton County (12) All 16 towns and cities

Hamilton County (9)

All nine towns and municipalities Herkimer County (23) All 23 towns and cities

Jefferson County (4)

Antwerp (town) (part; also 24th; includes Antwerp (village) and Oxbow), Le Ray, Philadelphia, Wilna Lewis County (17) All 17 towns and cities Montgomery County (8) Canajoharie, Charleston, Glen, Minden, Mohawk, Palatine, Root, St. Johnsville Oneida County (17) Annsville, Ava, Boonville, Camden, Deerfield, Florence, Floyd, Forestport, Lee, Marcy, Remsen, Rome, Steuben, Trenton, Verona (part; also 22nd; includes Durhamville and part of Verona CDP), Vienna, Western St. Lawrence County (33) All 33 towns and cities Saratoga County (10) Corinth, Day, Edinburg, Greenfield, Hadley, Moreau, Northumberland, Providence, Saratoga, Wilton (part; also 20th) Schoharie County (16) All 16 towns Warren County (12) All 12 towns and cities Washington County (17) All 17 towns

Recent election results from statewide races Year Office Results2008 PresidentObama 50% – 48%2012 PresidentObama 51% – 49%2016 PresidentTrump 56% – 37% SenateSchumer 56% – 41%2018 SenateGillibrand 51% – 49% GovernorMolinaro 61% – 33% Attorney GeneralWofford 56% – 41%2020 PresidentTrump 57% – 41%2022 SenatePinion 60% – 40% GovernorZeldin 66% – 34% Attorney GeneralHenry 62% – 38% ComptrollerRodríguez 57% – 43%2024 PresidentTrump 60% – 39% SenateSapraicone 55% – 44%

List of members representing the district

1813–1821: two seats From the creation of the district in 1813 to 1821, two seats were apportioned, elected at-large on a general ticket.

Congress Years Seat A Seat B Representative Party Electoral history Representative Party Electoral history March 4, 1813 –March 3, 1815 Samuel M. Hopkins Federalist Elected in 1812. Nathaniel W. Howell Federalist Elected in 1812. March 4, 1815 –January 23, 1816 Micah Brooks Democratic-Republican Elected in 1814. Peter Buell Porter Democratic-Republican Re-elected in 1814.Resigned to become a commissioner under the Treaty of Ghent. January 23, 1816 –December 2, 1816 Vacant December 2, 1816 –March 3, 1817 Archibald S. Clarke Democratic-Republican Elected April 30 – May 2, 1816, to finish Porter's term and seated December 2, 1816. March 4, 1817 –March 3, 1819 Benjamin Ellicott Democratic-Republican Elected in 1816. John Canfield Spencer Democratic-Republican Elected in 1816.Retired to run for U.S. senator March 4, 1819 –March 3, 1821 Nathaniel Allen Democratic-Republican Elected in 1818.Lost re-election. Albert H. Tracy Democratic-Republican Elected in 1818.Redistricted to the .

1821–present: one seat