99chambers

Arizona House of Representatives seat · lines in effect since 2022

Arizona Legislative District 19

A district of about 228,000 people, 31% Hispanic, 30% of adults with a bachelor's degree. It votes R+23.7 relative to the nation for president.

Gail Griffin (R) · since Nov 5, 1996Lupe Diaz (R) · since Nov 8, 2022Next election Nov 7, 2028The 2026 race →

Where it sits among all 30 seats

Every Arizona House of Representatives 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+23.724th most
Democratic
Most DemocraticMost Republican16th seat · the majority lineDistrict 19

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
Arizona House of RepresentativesR+15.5R+27.2R+11.3

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 30 seats. Small marks are other seats in Arizona. The black marker is District 19.

Adults with a bachelor's degree30% 52nd pct · 15th of 30 in AZ

Higher than 52% of seats.

White adults without a degree42% 72nd pct · 9th of 30 in AZ

Higher than 72% of seats.

Hispanic residents31% 62nd pct · 12th of 30 in AZ

Higher than 62% of seats.

Black residents3% 24th pct · 23rd of 30 in AZ

Lower than 76% of seats.

Asian residents2% 17th pct · 25th of 30 in AZ

Lower than 83% of seats.

People per square mile19 7th pct · 28th of 30 in AZ

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.

District 25
39% Hispanic · 24% college gradsR+28.4Held RDistrict 7
28% college gradsR+29.8Held RDistrict 1
30% college gradsR+31.9Held RDistrict 29
27% Hispanic · 30% college gradsR+17.2Split

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. David Gowan (R)
    2027– · Won 2026 by 15.3
  2. Lupe Diaz (R)
    2023– · Won 2022 by 15.5, 2024 by 27.2, 2026 by 11.3
  3. Gail Griffin (R)
    2023–2027 · Won 2022 by 19.6, 2024 by 31.3

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