- Lead
- 9,010
- Total
- 39,852
- vs nation
- R+21.1
Pennsylvania 55th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 8,881
- Total
- 39,193
- vs nation
- R+27.1
- Lead
- 8,962
- Total
- 35,125
- vs nation
- R+27.6
- Lead
- 5,781
- Total
- 32,857
- vs nation
- R+21.4
- Lead
- 3,626
- Total
- 34,650
- vs nation
- R+17.7
- Lead
- 2,169
- Total
- 34,505
- vs nation
- R+3.8
- Lead
- 52
- Total
- 30,557
- vs nation
- R+0.3
- Lead
- 1,801
- Total
- 27,875
- vs nation
- R+2.1
Key facts
- 2024 presidential margin
- R+22.6MIT Election Lab
- Population
- 66,3362024 5-year
- Population density
- 302 / sq mi2024 5-year · TIGER/Line
- Land area
- 219 sq miTIGER/Line
- Median household income
- $77,9712024 5-year
- White (non-Hispanic)
- 87.0%2024 5-year
- Black
- 4.8%2024 5-year
- Hispanic / Latino
- 1.7%2024 5-year
- Peak Democratic margin
- D+48.7 in 1964MIT Election Lab
- Peak Republican margin
- R+35.6 in 1924MIT Election Lab
- Most similar
- State House District 57, PA · twin score 97.8
presidential history
Party record book
Pennsylvania 55th 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
74.0%
22,104 votes · D+48.7 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 67.6%
Republican
Donald Trump2024
60.9%
24,269 votes · R+22.6 · modeled estimate
Runner-up · Donald Trump, 2020 · 60.6%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Lyndon B. Johnson1964
22,104votes
74.0% of the vote · D+48.7 · modeled estimate
Runner-up · John F. Kennedy, 1960 · 17,808 votes
Republican
Donald Trump2024
24,269votes
60.9% of the vote · R+22.6 · modeled estimate
Runner-up · Donald Trump, 2020 · 23,749 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
Adlai Stevenson1952
+31.5pts D vs U.S.
Place D+20.8 · U.S. R+10.8 · modeled estimate
Runner-up · Walter Mondale, 1984 · +29.9 pts
Republican
Donald Trump2016
+27.6pts R vs U.S.
Place R+25.5 · U.S. D+2.1 · modeled estimate
Runner-up · Donald Trump, 2020 · +27.1 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 | 34.5%13,331 | 65.5%25,266 | 38,597 |
Pennsylvania 55th State House District sits in the Mid-Atlantic. In 2024 it voted Republican.
Across the recorded series it reached a Democratic high of 48.7 points in 1964 and a Republican high of 35.6 points in 1924. The 2024 margin was 22.6 points.
A population of 66,336, a 87% non-Hispanic-white share, and a median household income of $77,971 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 57 and State House District 56.
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 55th State House District. Akashic. https://akashic.app/sld-lower/42055/. Accessed May 20, 2026. License: CC BY 4.0.