- Lead
- 5,726
- Total
- 44,637
- vs nation
- R+11.4
Pennsylvania 178th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 3,857
- Total
- 44,901
- vs nation
- R+13.0
- Lead
- 4,456
- Total
- 39,157
- vs nation
- R+13.5
- Lead
- 4,123
- Total
- 36,526
- vs nation
- R+15.1
- Lead
- 1,432
- Total
- 37,593
- vs nation
- R+11.1
- Lead
- 3,548
- Total
- 36,389
- vs nation
- R+7.3
- Lead
- 2,423
- Total
- 29,863
- vs nation
- R+8.6
- Lead
- 1,880
- Total
- 25,273
- vs nation
- R+16.0
Key facts
- 2024 presidential margin
- R+12.8MIT Election Lab
- Population
- 65,5032024 5-year
- Population density
- 1,326 / sq mi2024 5-year · TIGER/Line
- Land area
- 49.4 sq miTIGER/Line
- Median household income
- $147,3672024 5-year
- White (non-Hispanic)
- 88.5%2024 5-year
- Black
- 0.9%2024 5-year
- Hispanic / Latino
- 2.9%2024 5-year
- Peak Democratic margin
- D+9.7 in 1964MIT Election Lab
- Peak Republican margin
- R+61.9 in 1928MIT Election Lab
- Most similar
- State House District 143, PA · twin score 96.9
presidential history
Party record book
Pennsylvania 178th 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
Lyndon B. Johnson1964
54.6%
7,844 votes · D+9.7 · modeled estimate
Runner-up · Barack Obama, 2008 · 47.7%
Republican
Herbert Hoover1928
80.7%
3,646 votes · R+61.9 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · 72.2%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
20,348votes
45.3% of the vote · R+8.6 · modeled estimate
Runner-up · Kamala Harris, 2024 · 19,253 votes
Republican
Donald Trump2024
24,979votes
56.0% of the vote · R+12.8 · modeled estimate
Runner-up · Donald Trump, 2020 · 24,205 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 Kerry2004
−7.3pts D vs U.S.
Place R+9.8 · U.S. R+2.5 · modeled estimate
Runner-up · Alton B. Parker, 1904 · −8.1 pts
Republican
Herbert Hoover1932
+50.4pts R vs U.S.
Place R+32.6 · U.S. D+17.8 · modeled estimate
Runner-up · Herbert Hoover, 1928 · +44.5 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.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | R | 43.4%17,246 | 56.6%22,530 | 39,776 |
With a 2024 presidential margin of R+12.8, District 178 sits well to the right of Pennsylvania's statewide average, suggesting a largely rural or exurban constituency where Republican candidates have built durable structural advantages.
Across the recorded series it reached a Democratic high of 9.7 points in 1964 and a Republican high of 61.9 points in 1928. Between 2020 and 2024 the district moved 4.2 points toward the Republican candidate; the 2024 margin was 12.8 points.
A population of 65,503, a 89% non-Hispanic-white share, and a median household income of $147,367 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 143 and State House District 147.
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 →
Pennsylvania 178th State House District. Akashic. https://akashic.app/sld-lower/42178/. Accessed May 20, 2026. License: CC BY 4.0.