- Lead
- 36,530
- Total
- 125,022
- vs nation
- R+27.7
Arizona 25th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 25,716
- Total
- 106,642
- vs nation
- R+28.6
- Lead
- 20,090
- Total
- 69,615
- vs nation
- R+30.9
- Lead
- 22,974
- Total
- 60,789
- vs nation
- R+41.6
- Lead
- 23,591
- Total
- 61,641
- vs nation
- R+45.5
- Lead
- 22,586
- Total
- 54,553
- vs nation
- R+38.9
- Lead
- 14,852
- Total
- 40,419
- vs nation
- R+37.3
- Lead
- 10,480
- Total
- 37,041
- vs nation
- R+36.8
Key facts
- 2024 presidential margin
- R+29.2MIT Election Lab
- Population
- 243,0052024 5-year
- Population density
- 46 / sq mi2024 5-year · TIGER/Line
- Land area
- 5,327 sq miTIGER/Line
- Median household income
- $88,6332024 5-year
- White (non-Hispanic)
- 52.6%2024 5-year
- Black
- 4.4%2024 5-year
- Hispanic / Latino
- 36.0%2024 5-year
- Peak Democratic margin
- D+10.8 in 1936MIT Election Lab
- Peak Republican margin
- R+64.0 in 1984MIT Election Lab
- Most similar
- State Senate District 29, AZ · twin score 95.5
presidential history
Party record book
Arizona 25th State Senate 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
53.3%
1,383 votes · D+10.8 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1932 · 50.6%
Republican
Ronald Reagan1984
81.7%
23,707 votes · R+64.0 · modeled estimate
Runner-up · Herbert Hoover, 1928 · 80.9%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Kamala Harris2024
43,349votes
34.7% of the vote · R+29.2 · modeled estimate
Runner-up · Joe Biden, 2020 · 39,634 votes
Republican
Donald Trump2024
79,879votes
63.9% of the vote · R+29.2 · modeled estimate
Runner-up · Donald Trump, 2020 · 65,350 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. Roosevelt1936
−13.5pts D vs U.S.
Place D+10.8 · U.S. D+24.3 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1932 · −13.5 pts
Republican
Barry Goldwater1964
+53.4pts R vs U.S.
Place R+30.8 · U.S. D+22.6 · modeled estimate
Runner-up · Gerald Ford, 1976 · +48.8 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
Anchored in rural and exurban terrain west and south of the Phoenix metro, this district delivered a 29.2-point Republican presidential margin in 2024, making it among the most one-sided state senate seats in Arizona.
Across the recorded series it reached a Democratic high of 10.8 points in 1936 and a Republican high of 64.0 points in 1984. Between 2020 and 2024 the district moved 5.1 points toward the Republican candidate; the 2024 margin was 29.2 points.
A population of 243,005, a 53% non-Hispanic-white share, and a median household income of $88,633 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 29 and Legislative (Senate) District 15.
The state-senate 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 25th State Senate District. Akashic. https://akashic.app/sld-upper/04025/. Accessed May 20, 2026. License: CC BY 4.0.