- Lead
- 10,056
- Total
- 33,806
- vs nation
- R+28.3
Pennsylvania 9th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 8,456
- Total
- 33,067
- vs nation
- R+30.0
- Lead
- 7,140
- Total
- 29,595
- vs nation
- R+26.2
- Lead
- 1,376
- Total
- 28,629
- vs nation
- R+8.7
- Lead
- 279
- Total
- 30,958
- vs nation
- R+8.2
- Lead
- 917
- Total
- 31,686
- vs nation
- D+5.4
- Lead
- 3,061
- Total
- 29,097
- vs nation
- D+10.0
- Lead
- 5,284
- Total
- 26,526
- vs nation
- D+11.4
Key facts
- 2024 presidential margin
- R+29.7MIT Election Lab
- Population
- 63,4752024 5-year
- Population density
- 315 / sq mi2024 5-year · TIGER/Line
- Land area
- 201 sq miTIGER/Line
- Median household income
- $58,3362024 5-year
- White (non-Hispanic)
- 86.7%2024 5-year
- Black
- 5.4%2024 5-year
- Hispanic / Latino
- 2.2%2024 5-year
- Peak Democratic margin
- D+32.7 in 1964MIT Election Lab
- Peak Republican margin
- R+53.2 in 1924MIT Election Lab
- Most similar
- State House District 14, PA · twin score 92.3
presidential history
Party record book
Pennsylvania 9th 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
66.2%
22,134 votes · D+32.7 · modeled estimate
Runner-up · Michael Dukakis, 1988 · 59.7%
Republican
Herbert Hoover1928
73.1%
14,001 votes · R+47.4 · modeled estimate
Runner-up · Donald Trump, 2024 · 64.5%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Lyndon B. Johnson1964
22,134votes
66.2% of the vote · D+32.7 · modeled estimate
Runner-up · John F. Kennedy, 1960 · 18,480 votes
Republican
Donald Trump2024
21,812votes
64.5% of the vote · R+29.7 · modeled estimate
Runner-up · Donald Trump, 2020 · 20,594 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
Walter Mondale1984
+33.0pts D vs U.S.
Place D+14.8 · U.S. R+18.2 · modeled estimate
Runner-up · Michael Dukakis, 1988 · +27.7 pts
Republican
Donald Trump2020
+30.0pts R vs U.S.
Place R+25.6 · U.S. D+4.5 · modeled estimate
Runner-up · Herbert Hoover, 1928 · +29.9 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.
Pennsylvania 9th State House District sits in the Mid-Atlantic. In 2024 it voted Republican.
Across the recorded series it reached a Democratic high of 32.7 points in 1964 and a Republican high of 53.2 points in 1924. Between 2020 and 2024 the district moved 4.2 points toward the Republican candidate; the 2024 margin was 29.7 points.
A population of 63,475, a 87% non-Hispanic-white share, and a median household income of $58,336 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 14 and State House District 58.
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 9th State House District. Akashic. https://akashic.app/sld-lower/42009/. Accessed May 20, 2026. License: CC BY 4.0.