- Lead
- 49,713
- Total
- 149,719
- vs nation
- R+31.7
Arizona 1st State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 41,299
- Total
- 144,603
- vs nation
- R+33.0
- Lead
- 35,359
- Total
- 116,097
- vs nation
- R+32.5
- Lead
- 30,286
- Total
- 102,137
- vs nation
- R+33.5
- Lead
- 24,012
- Total
- 101,758
- vs nation
- R+30.9
- Lead
- 20,148
- Total
- 89,109
- vs nation
- R+20.2
- Lead
- 16,006
- Total
- 69,407
- vs nation
- R+23.6
- Lead
- 7,923
- Total
- 60,579
- vs nation
- R+21.6
Key facts
- 2024 presidential margin
- R+33.2MIT Election Lab
- Population
- 237,8962024 5-year
- Population density
- 29 / sq mi2024 5-year · TIGER/Line
- Land area
- 8,122 sq miTIGER/Line
- Median household income
- $69,5552024 5-year
- White (non-Hispanic)
- 77.6%2024 5-year
- Black
- 0.6%2024 5-year
- Hispanic / Latino
- 14.5%2024 5-year
- Peak Democratic margin
- D+40.5 in 1932MIT Election Lab
- Peak Republican margin
- R+45.0 in 1980MIT Election Lab
- Most similar
- State House District 30, AZ · twin score 93.8
presidential history
Party record book
Arizona 1st 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. Roosevelt1932
69.2%
6,410 votes · D+40.5 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 66.8%
Republican
Ronald Reagan1984
70.6%
25,357 votes · R+42.9 · modeled estimate
Runner-up · Ronald Reagan, 1980 · 68.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
50,570votes
35.0% of the vote · R+28.6 · modeled estimate
Runner-up · Kamala Harris, 2024 · 49,308 votes
Republican
Donald Trump2024
99,021votes
66.1% of the vote · R+33.2 · modeled estimate
Runner-up · Donald Trump, 2020 · 91,869 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
Franklin D. Roosevelt1932
+22.7pts D vs U.S.
Place D+40.5 · U.S. D+17.8 · modeled estimate
Runner-up · Woodrow Wilson, 1916 · +20.4 pts
Republican
Barry Goldwater1964
+37.2pts R vs U.S.
Place R+14.6 · U.S. D+22.6 · modeled estimate
Runner-up · Ronald Reagan, 1980 · +35.2 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
Covering a slice of Pima County, this district posts some of Arizona's most consistent Democratic margins, reflecting the urban Tucson electorate's college-educated and Hispanic demographic mix.
Across the recorded series it reached a Democratic high of 40.5 points in 1932 and a Republican high of 45.0 points in 1980. Between 2020 and 2024 the district moved 4.6 points toward the Republican candidate; the 2024 margin was 33.2 points.
A population of 237,896, a 78% non-Hispanic-white share, and a median household income of $69,555 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 30 and State House District 31.
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 1st State House District. Akashic. https://akashic.app/sld-lower/04001/. Accessed May 20, 2026. License: CC BY 4.0.