- Lead
- 27,060
- Total
- 118,103
- vs nation
- R+21.4
Arizona 19th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 25,508
- Total
- 117,181
- vs nation
- R+26.2
- Lead
- 22,901
- Total
- 94,827
- vs nation
- R+26.2
- Lead
- 25,028
- Total
- 91,257
- vs nation
- R+31.3
- Lead
- 25,487
- Total
- 92,289
- vs nation
- R+34.9
- Lead
- 23,590
- Total
- 84,787
- vs nation
- R+25.4
- Lead
- 14,715
- Total
- 65,756
- vs nation
- R+22.9
- Lead
- 5,779
- Total
- 61,952
- vs nation
- R+17.8
Key facts
- 2024 presidential margin
- R+22.9MIT Election Lab
- Population
- 230,4762024 5-year
- Population density
- 20 / sq mi2024 5-year · TIGER/Line
- Land area
- 11,796 sq miTIGER/Line
- Median household income
- $69,3142024 5-year
- White (non-Hispanic)
- 60.9%2024 5-year
- Black
- 2.7%2024 5-year
- Hispanic / Latino
- 29.4%2024 5-year
- Peak Democratic margin
- D+50.5 in 1936MIT Election Lab
- Peak Republican margin
- R+33.8 in 1984MIT Election Lab
- Most similar
- State Senate District 10, AZ · twin score 88.5
presidential history
Party record book
Arizona 19th 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
73.9%
11,948 votes · D+50.5 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1932 · 67.9%
Republican
Ronald Reagan1984
66.4%
36,659 votes · R+33.8 · modeled estimate
Runner-up · George W. Bush, 2004 · 63.4%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
44,852votes
38.3% of the vote · R+21.8 · modeled estimate
Runner-up · Kamala Harris, 2024 · 44,767 votes
Republican
Donald Trump2024
71,827votes
60.8% of the vote · R+22.9 · modeled estimate
Runner-up · Donald Trump, 2020 · 70,360 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
+26.3pts D vs U.S.
Place D+50.5 · U.S. D+24.3 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1940 · +25.7 pts
Republican
John McCain2008
+34.9pts R vs U.S.
Place R+27.6 · U.S. D+7.3 · modeled estimate
Runner-up · Mitt Romney, 2012 · +31.3 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
Arizona 19th State Senate District sits in the desert Southwest. In 2024 it voted Republican.
Across the recorded series it reached a Democratic high of 50.5 points in 1936 and a Republican high of 33.8 points in 1984. Between 2020 and 2024 the district moved 1.1 points toward the Republican candidate; the 2024 margin was 22.9 points.
A population of 230,476, a 61% non-Hispanic-white share, and a median household income of $69,314 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 10 and State Senate District 27.
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 19th State Senate District. Akashic. https://akashic.app/sld-upper/04019/. Accessed May 20, 2026. License: CC BY 4.0.