- Lead
- 745
- Total
- 39,293
- vs nation
- D+3.4
Pennsylvania 3rd State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 857
- Total
- 39,073
- vs nation
- R+2.3
- Lead
- 1,767
- Total
- 34,877
- vs nation
- R+7.2
- Lead
- 4,161
- Total
- 32,953
- vs nation
- D+8.8
- Lead
- 5,853
- Total
- 35,414
- vs nation
- D+9.3
- Lead
- 1,754
- Total
- 35,085
- vs nation
- D+7.5
- Lead
- 1,806
- Total
- 31,302
- vs nation
- D+5.3
- Lead
- 3,923
- Total
- 30,063
- vs nation
- D+4.5
Key facts
- 2024 presidential margin
- D+1.9MIT Election Lab
- Population
- 65,2112024 5-year
- Population density
- 1,069 / sq mi2024 5-year · TIGER/Line
- Land area
- 61 sq miTIGER/Line
- Median household income
- $82,8592024 5-year
- White (non-Hispanic)
- 88.0%2024 5-year
- Black
- 2.0%2024 5-year
- Hispanic / Latino
- 2.7%2024 5-year
- Peak Democratic margin
- D+36.6 in 1964MIT Election Lab
- Peak Republican margin
- R+51.3 in 1924MIT Election Lab
- Most similar
- State House District 4, IN · twin score 84.0
presidential history
Party record book
Pennsylvania 3rd 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
68.1%
19,698 votes · D+36.6 · modeled estimate
Runner-up · Barack Obama, 2008 · 57.7%
Republican
Theodore Roosevelt1904
66.3%
3,474 votes · R+39.7 · modeled estimate
Runner-up · Warren G. Harding, 1920 · 65.7%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
20,441votes
57.7% of the vote · D+16.5 · modeled estimate
Runner-up · Kamala Harris, 2024 · 19,837 votes
Republican
Donald Trump2024
19,092votes
48.6% of the vote · D+1.9 · modeled estimate
Runner-up · Donald Trump, 2020 · 18,877 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
Lyndon B. Johnson1964
+14.0pts D vs U.S.
Place D+36.6 · U.S. D+22.6 · modeled estimate
Runner-up · Walter Mondale, 1984 · +11.5 pts
Republican
Calvin Coolidge1924
+26.1pts R vs U.S.
Place R+51.3 · U.S. R+25.2 · modeled estimate
Runner-up · Wendell Willkie, 1940 · +20.6 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.
With a 1.9-point Democratic presidential margin in 2024, this district ranks among the more one-sided state house seats in Pennsylvania, suggesting a dense urban or inner-suburban core with a politically consistent electorate.
Across the recorded series it reached a Democratic high of 36.6 points in 1964 and a Republican high of 51.3 points in 1924. The 2024 margin was 1.9 points.
A population of 65,211, a 88% non-Hispanic-white share, and a median household income of $82,859 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 4 and State House District 63.
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 3rd State House District. Akashic. https://akashic.app/sld-lower/42003/. Accessed May 20, 2026. License: CC BY 4.0.