- Lead
- 2,569
- Total
- 85,494
- vs nation
- D+4.5
Arizona 9th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 5,339
- Total
- 92,492
- vs nation
- D+1.3
- Lead
- 1,671
- Total
- 73,437
- vs nation
- R+4.4
- Lead
- 6,324
- Total
- 63,166
- vs nation
- R+13.9
- Lead
- 6,236
- Total
- 62,340
- vs nation
- R+17.3
- Lead
- 7,542
- Total
- 54,152
- vs nation
- R+11.5
- Lead
- 4,001
- Total
- 41,563
- vs nation
- R+10.1
- Lead
- 782
- Total
- 38,011
- vs nation
- R+10.6
Key facts
- 2024 presidential margin
- D+3.0MIT Election Lab
- Population
- 238,1172024 5-year
- Population density
- 6,090 / sq mi2024 5-year · TIGER/Line
- Land area
- 39.1 sq miTIGER/Line
- Median household income
- $70,3222024 5-year
- White (non-Hispanic)
- 47.4%2024 5-year
- Black
- 5.1%2024 5-year
- Hispanic / Latino
- 37.7%2024 5-year
- Peak Democratic margin
- D+37.6 in 1936MIT Election Lab
- Peak Republican margin
- R+44.0 in 1984MIT Election Lab
- Most similar
- State House District 2, AZ · twin score 92.2
presidential history
Party record book
Arizona 9th State House District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1912–2024 · 29 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Franklin D. Roosevelt1936
65.7%
1,464 votes · D+37.6 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1932 · 63.4%
Republican
Ronald Reagan1984
71.1%
18,475 votes · R+44.0 · modeled estimate
Runner-up · Richard Nixon, 1972 · 66.4%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
47,792votes
51.7% of the vote · D+5.8 · modeled estimate
Runner-up · Kamala Harris, 2024 · 43,311 votes
Republican
Donald Trump2020
42,453votes
45.9% of the vote · D+5.8 · modeled estimate
Runner-up · Donald Trump, 2024 · 40,742 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
John W. Davis1924
+21.6pts D vs U.S.
Place R+3.6 · U.S. R+25.2 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · +13.4 pts
Republican
Barry Goldwater1964
+29.7pts R vs U.S.
Place R+7.1 · U.S. D+22.6 · modeled estimate
Runner-up · Ronald Reagan, 1980 · +28.5 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
Arizona 9th State House District sits in the desert Southwest. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 37.6 points in 1936 and a Republican high of 44.0 points in 1984. Between 2020 and 2024 the district moved 2.8 points toward the Republican candidate; the 2024 margin was 3.0 points.
A population of 238,117, a 47% non-Hispanic-white share, and a median household income of $70,322 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 2 and State House District 27.
The state-house districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
District research tools
Open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report → · Browse all comparisons →
Arizona 9th State House District. Akashic. https://akashic.app/sld-lower/04009/. Accessed May 20, 2026. License: CC BY 4.0.