- Lead
- 6,564
- Total
- 72,343
- vs nation
- D+10.5
Texas 78th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 17,813
- Total
- 76,194
- vs nation
- D+18.9
- Lead
- 15,024
- Total
- 61,433
- vs nation
- D+22.4
- Lead
- 6,048
- Total
- 49,998
- vs nation
- D+8.2
- Lead
- 6,544
- Total
- 53,734
- vs nation
- D+4.9
- Lead
- 4,168
- Total
- 50,022
- vs nation
- R+5.9
- Lead
- 1,071
- Total
- 41,445
- vs nation
- R+3.1
- Lead
- 4,251
- Total
- 36,167
- vs nation
- D+3.2
Key facts
- 2024 presidential margin
- D+9.1MIT Election Lab
- Population
- 203,7862024 5-year
- Population density
- 1,378 / sq mi2024 5-year · TIGER/Line
- Land area
- 148 sq miTIGER/Line
- Median household income
- $71,2312024 5-year
- White (non-Hispanic)
- 18.8%2024 5-year
- Black
- 3.9%2024 5-year
- Hispanic / Latino
- 72.8%2024 5-year
- Peak Democratic margin
- D+63.8 in 1912MIT Election Lab
- Peak Republican margin
- R+40.5 in 1972MIT Election Lab
- Most similar
- State House District 79, TX · twin score 97.2
presidential history
Party record book
Texas 78th State House 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
Woodrow Wilson1912
81.9%
688 votes · D+63.8 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 78.5%
Republican
Richard Nixon1972
70.3%
18,524 votes · R+40.5 · modeled estimate
Runner-up · James A. Garfield, 1880 · 70.2%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
46,232votes
60.7% of the vote · D+23.4 · modeled estimate
Runner-up · Kamala Harris, 2024 · 38,960 votes
Republican
Donald Trump2024
32,396votes
44.8% of the vote · D+9.1 · modeled estimate
Runner-up · Donald Trump, 2020 · 28,419 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
Woodrow Wilson1912
+44.3pts D vs U.S.
Place D+63.8 · U.S. D+19.5 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1944 · +43.1 pts
Republican
Ronald Reagan1980
+24.3pts R vs U.S.
Place R+34.0 · U.S. R+9.7 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1952 · +23.8 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row is a county-allocated estimate of U.S. House votes for this district — county returns apportioned onto its boundary, not precinct-counted. “Vote lead” is the estimated local lead here, not necessarily the winner of the full contest.
Anchored in the Houston metro, District 78 tilts Democratic at the presidential level by a margin that has made it a reliable indicator of shifting suburban alignment in Harris County's legislative delegation.
Across the recorded series it reached a Democratic high of 63.8 points in 1912 and a Republican high of 40.5 points in 1972. Between 2020 and 2024 the district moved 14.3 points toward the Republican candidate; the 2024 margin was 9.1 points.
A population of 203,786, a 19% non-Hispanic-white share, and a median household income of $71,231 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 79 and State House District 41.
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 →
Texas 78th State House District. Akashic. https://akashic.app/sld-lower/48078/. Accessed May 20, 2026. License: CC BY 4.0.