- Lead
- 39,529
- Total
- 198,564
- vs nation
- R+18.4
Texas 9th Congressional District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 17,315
- Total
- 208,868
- vs nation
- R+12.7
- Lead
- 5,170
- Total
- 172,797
- vs nation
- R+5.1
- Lead
- 20,127
- Total
- 164,055
- vs nation
- R+16.1
- Lead
- 14,565
- Total
- 160,997
- vs nation
- R+16.3
- Lead
- 26,519
- Total
- 154,421
- vs nation
- R+14.7
- Lead
- 23,269
- Total
- 142,093
- vs nation
- R+16.9
- Lead
- 9,013
- Total
- 124,581
- vs nation
- R+15.8
Key facts
- 2024 presidential margin
- R+19.9MIT Election Lab
- Population
- 766,9302024 5-year
- Population density
- 488 / sq mi2024 5-year · TIGER/Line
- Land area
- 1,572 sq miTIGER/Line
- Median household income
- $70,1222024 5-year
- White (non-Hispanic)
- 25.1%2024 5-year
- Black
- 9.1%2024 5-year
- Hispanic / Latino
- 62.1%2024 5-year
- Peak Democratic margin
- D+80.9 in 1936MIT Election Lab
- Peak Republican margin
- R+28.7 in 1972MIT Election Lab
- Most similar
- Congressional District 35, TX · twin score 67.1
presidential history
Party record book
Texas 9th Congressional District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 (partial returns from 1876) · 38 presidential cycles · 38 with a vote-share denominator · 34 with a national benchmark
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Franklin D. Roosevelt1936
90.3%
9,924 votes · D+80.9 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1932 · 87.6%
Republican
Richard Nixon1972
63.8%
52,848 votes · R+28.7 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 62.9%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
94,353votes
45.2% of the vote · R+8.3 · modeled estimate
Runner-up · Hillary Clinton, 2016 · 80,906 votes
Republican
Donald Trump2024
118,135votes
59.5% of the vote · R+19.9 · modeled estimate
Runner-up · Donald Trump, 2020 · 111,668 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
+60.8pts D vs U.S.
Place D+35.6 · U.S. R+25.2 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1932 · +58.0 pts
Republican
Donald Trump2024
+18.4pts R vs U.S.
Place R+19.9 · U.S. R+1.5 · modeled estimate
Runner-up · George W. Bush, 2000 · +16.9 pts
Current officeholders
Federal officeholders only. State and local officeholders are planned for the next data pass.
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each result reflects the U.S. House district as it was drawn for that election; redistricting has redrawn these lines over time, so they can differ from the current 120th-Congress district shown on the map above.
TX-9 covers a heavily urbanized swath of southwest Houston and inner suburbs where Black and Hispanic residents together form a large majority, producing some of the most lopsided Democratic margins in the state.
Across the recorded series it reached a Democratic high of 80.9 points in 1936 and a Republican high of 28.7 points in 1972. Between 2020 and 2024 the district moved 11.6 points toward the Republican candidate; the 2024 margin was 19.9 points.
A population of 766,930, a 25% non-Hispanic-white share, and a median household income of $70,122 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 35 and Congressional District 32.
The congressional 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 →
Texas 9th Congressional District. Akashic. https://akashic.app/cd/4809/. Accessed May 20, 2026. License: CC BY 4.0.