- Lead
- 43,717
- Total
- 143,767
- vs nation
- R+28.9
Arizona 15th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 32,810
- Total
- 119,549
- vs nation
- R+31.9
- Lead
- 22,198
- Total
- 72,689
- vs nation
- R+32.6
- Lead
- 22,078
- Total
- 63,116
- vs nation
- R+38.8
- Lead
- 21,373
- Total
- 61,856
- vs nation
- R+41.8
- Lead
- 18,624
- Total
- 47,938
- vs nation
- R+36.4
- Lead
- 10,802
- Total
- 34,473
- vs nation
- R+31.9
- Lead
- 6,266
- Total
- 30,276
- vs nation
- R+29.2
Key facts
- 2024 presidential margin
- R+30.4MIT Election Lab
- Population
- 240,0282024 5-year
- Population density
- 1,073 / sq mi2024 5-year · TIGER/Line
- Land area
- 224 sq miTIGER/Line
- Median household income
- $112,3402024 5-year
- White (non-Hispanic)
- 67.4%2024 5-year
- Black
- 3.8%2024 5-year
- Hispanic / Latino
- 20.4%2024 5-year
- Peak Democratic margin
- D+19.8 in 1936MIT Election Lab
- Peak Republican margin
- R+56.5 in 1984MIT Election Lab
- Most similar
- State House District 24, TX · twin score 92.9
presidential history
Party record book
Arizona 15th 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
57.8%
1,299 votes · D+19.8 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1932 · 55.4%
Republican
Ronald Reagan1984
77.8%
18,561 votes · R+56.5 · modeled estimate
Runner-up · Richard Nixon, 1972 · 75.5%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Kamala Harris2024
49,046votes
34.1% of the vote · R+30.4 · modeled estimate
Runner-up · Joe Biden, 2020 · 42,392 votes
Republican
Donald Trump2024
92,763votes
64.5% of the vote · R+30.4 · modeled estimate
Runner-up · Donald Trump, 2020 · 75,202 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
−2.8pts D vs U.S.
Place R+28.0 · U.S. R+25.2 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · −4.5 pts
Republican
Barry Goldwater1964
+46.0pts R vs U.S.
Place R+23.4 · U.S. D+22.6 · modeled estimate
Runner-up · John McCain, 2008 · +41.8 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
Arizona 15th State House District sits in the desert Southwest. In 2024 it voted Republican.
Across the recorded series it reached a Democratic high of 19.8 points in 1936 and a Republican high of 56.5 points in 1984. Between 2020 and 2024 the district moved 3.0 points toward the Republican candidate; the 2024 margin was 30.4 points.
A population of 240,028, a 67% non-Hispanic-white share, and a median household income of $112,340 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 24 and State House District 14.
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 15th State House District. Akashic. https://akashic.app/sld-lower/04015/. Accessed May 20, 2026. License: CC BY 4.0.