U.S. House seat · lines in effect since 2022
Arizona's 9th District
A district of about 852,000 people, 31% Hispanic, 23% of adults with a bachelor's degree. It votes R+30.1 relative to the nation for president.
Source: 2026 results: Arizona Secretary of State; 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 8 other seats in Arizona.
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.
| 2022 | 2024 | 2026 | |
|---|---|---|---|
| U.S. Senate | No race | R+32.0 | No race |
| U.S. House | R+86.6 | R+30.6 | R+14.8 |
Outlined: the race for this seat itselfBlank: no race that year
Source: 99chambers results archive: precinct results allocated to current lines; 2026: Arizona Secretary of StateUpdated 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 Arizona. The black marker is AZ-9.
Lower than 92% of seats.
Higher than 70% of seats.
Higher than 83% of seats.
Lower than 69% of seats.
Lower than 69% of seats.
Less dense than 93% 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.
WA-441% Hispanic · 24% college gradsR+20.0Held RCA-5
31% Hispanic · 29% college gradsR+19.4Held RTX-13
29% Hispanic · 27% college gradsR+46.0Held RKS-1
30% college gradsR+30.9Held 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 2022.
- Paul Gosar (R)
2023– · Won 2022 by 81.6, 2024 by 30.6, 2026 by 14.8
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)