U.S. House seat · lines in effect since 2024
New York's 21st District
A district of about 766,000 people, 26% of adults with a bachelor's degree. It votes R+19.5 relative to the nation for president.
Source: 2026 results: New York State Board of Elections and civicAPI; boundaries: Census Bureau TIGER/LineUpdated Nov 7, 2026, 3:01 PM ET
Where it sits among all 435 seats
Every U.S. House seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.
Democratic
Labels below the bar mark 25 other seats in New York.
Source: 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET
Every race on these lines
Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.
| 2024 | 2026 | |
|---|---|---|
| U.S. House | R+24.3 | R+1.9 |
Outlined: the race for this seat itselfBlank: no race that year
Source: 99chambers results archive: precinct results allocated to current lines; 2026: New York State Board of ElectionsUpdated Nov 7, 2026, 3:01 PM ET
Who lives here, compared
Grey bars show the spread of all 435 seats. Small marks are other seats in New York. The black marker is NY-21.
Lower than 80% of seats.
Higher than 95% of seats.
Lower than 92% of seats.
Lower than 86% of seats.
Lower than 91% of seats.
Less dense than 90% of seats.
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET
Seats most like this one
Nearest seats on demographics, density and lean.
WI-726% college gradsR+22.2Held RNY-24
26% college gradsR+22.6Held RWI-6
29% college gradsR+16.5Held RWI-8
30% college gradsR+16.2Held R
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current lines; 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET
Who has held it
These lines took effect in 2024.
- Anthony Constantino (R)
2027– · Won 2026 by 1.9 - Elise M. Stefanik (R)
2025–2027 · Won 2024 by 24.3
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)