- Lead
- 6,160
- Total
- 25,476
- vs nation
- D+25.7
Pennsylvania 1st State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 7,200
- Total
- 26,027
- vs nation
- D+23.2
- Lead
- 6,336
- Total
- 25,016
- vs nation
- D+23.2
- Lead
- 10,456
- Total
- 25,063
- vs nation
- D+37.9
- Lead
- 12,169
- Total
- 27,310
- vs nation
- D+37.3
- Lead
- 9,251
- Total
- 25,763
- vs nation
- D+38.4
- Lead
- 8,319
- Total
- 23,088
- vs nation
- D+35.5
- Lead
- 8,990
- Total
- 22,673
- vs nation
- D+31.1
Key facts
- 2024 presidential margin
- D+24.2MIT Election Lab
- Population
- 64,8632024 5-year
- Population density
- 4,568 / sq mi2024 5-year · TIGER/Line
- Land area
- 14.2 sq miTIGER/Line
- Median household income
- $42,2632024 5-year
- White (non-Hispanic)
- 65.4%2024 5-year
- Black
- 16.1%2024 5-year
- Hispanic / Latino
- 8.6%2024 5-year
- Peak Democratic margin
- D+61.0 in 1964MIT Election Lab
- Peak Republican margin
- R+31.3 in 1924MIT Election Lab
- Most similar
- State House District 42, OH · twin score 88.7
presidential history
Party record book
Pennsylvania 1st 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
80.0%
18,665 votes · D+61.0 · modeled estimate
Runner-up · Barack Obama, 2008 · 70.9%
Republican
Warren G. Harding1920
50.5%
2,766 votes · R+19.8 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · 48.6%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
19,363votes
70.9% of the vote · D+44.6 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · 18,665 votes
Republican
Donald Trump2024
9,526votes
37.4% of the vote · D+24.2 · modeled estimate
Runner-up · Donald Trump, 2020 · 9,200 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
+43.6pts D vs U.S.
Place D+25.4 · U.S. R+18.2 · modeled estimate
Runner-up · Michael Dukakis, 1988 · +40.9 pts
Republican
Calvin Coolidge1924
+6.2pts R vs U.S.
Place R+31.3 · U.S. R+25.2 · modeled estimate
Runner-up · William H. Taft, 1912 · +1.1 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 |
|---|---|---|---|---|
| 2018 | D | 59.9%14,559 | 40.1%9,756 | 24,315 |
Anchored in dense urban Philadelphia, this district has posted double-digit Democratic presidential margins for over a decade, reflecting a high-density, majority-minority electorate that consistently drives some of the state's largest Democratic vote shares.
Across the recorded series it reached a Democratic high of 61.0 points in 1964 and a Republican high of 31.3 points in 1924. Between 2020 and 2024 the district moved 3.5 points toward the Republican candidate; the 2024 margin was 24.2 points.
A population of 64,863, a 65% non-Hispanic-white share, and a median household income of $42,263 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 42 and State House District 43.
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 1st State House District. Akashic. https://akashic.app/sld-lower/42001/. Accessed May 20, 2026. License: CC BY 4.0.