99chambers

U.S. House seat · lines in effect since 2022

Arizona's 6th District

A district of about 818,000 people, 26% Hispanic, 39% of adults with a bachelor's degree. It votes R+0.7 relative to the nation for president.

JoAnna Mendoza (D) · from Jan 3, 2027Flipped in 2026Next election Nov 7, 2028The 2026 race →
AZ-6

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.

R+0.7211th most
Democratic
Most DemocraticMost Republican218th seat · the majority line374AZ-612859

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.

202220242026
U.S. HouseR+1.5R+2.5D+8.0

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-6.

Adults with a bachelor's degree39% 70th pct · 3rd of 9 in AZ

Higher than 70% of seats.

White adults without a degree38% 49th pct · 5th of 9 in AZ

Lower than 51% of seats.

Hispanic residents26% 77th pct · 5th of 9 in AZ

Higher than 77% of seats.

Black residents4% 26th pct · 5th of 9 in AZ

Lower than 74% of seats.

Asian residents3% 46th pct · 5th of 9 in AZ

Lower than 54% of seats.

People per square mile60 14th pct · 6th of 9 in AZ

Less dense than 86% 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. 1 of the 4 flipped this year.

CO-3
26% Hispanic · 34% college gradsR+9.6Held RIA-3
37% college gradsR+3.5Flipped DOR-5
39% college gradsD+8.6Held DNY-18
37% college gradsD+4.8Held D

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.

  1. JoAnna Mendoza (D)
    2027– · Won 2026 by 8.0
  2. Juan Ciscomani (R)
    2023–2027 · Won 2022 by 1.5, 2024 by 2.5

Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)