- Lead
- 76,270
- Total
- 136,995
- vs nation
- D+57.1
Pennsylvania 43rd State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 77,216
- Total
- 139,085
- vs nation
- D+51.1
- Lead
- 71,140
- Total
- 135,664
- vs nation
- D+50.3
- Lead
- 66,723
- Total
- 127,456
- vs nation
- D+48.5
- Lead
- 71,481
- Total
- 134,463
- vs nation
- D+45.9
- Lead
- 70,231
- Total
- 131,900
- vs nation
- D+55.7
- Lead
- 63,359
- Total
- 119,862
- vs nation
- D+52.3
- Lead
- 54,603
- Total
- 110,178
- vs nation
- D+41.0
Key facts
- 2024 presidential margin
- D+55.7MIT Election Lab
- Population
- 251,2322024 5-year
- Population density
- 4,369 / sq mi2024 5-year · TIGER/Line
- Land area
- 57.5 sq miTIGER/Line
- Median household income
- $62,2122024 5-year
- White (non-Hispanic)
- 59.9%2024 5-year
- Black
- 25.1%2024 5-year
- Hispanic / Latino
- 3.5%2024 5-year
- Peak Democratic margin
- D+65.0 in 1964MIT Election Lab
- Peak Republican margin
- R+27.8 in 1924MIT Election Lab
- Most similar
- State Senate District 7, IL · twin score 93.0
presidential history
Party record book
Pennsylvania 43rd State Senate 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
82.3%
129,577 votes · D+65.0 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 80.9%
Republican
Theodore Roosevelt1904
57.9%
10,142 votes · R+24.0 · modeled estimate
Runner-up · Warren G. Harding, 1920 · 50.7%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Lyndon B. Johnson1964
129,577votes
82.3% of the vote · D+65.0 · modeled estimate
Runner-up · John F. Kennedy, 1960 · 116,867 votes
Republican
Dwight D. Eisenhower1956
43,263votes
33.4% of the vote · D+33.1 · modeled estimate
Runner-up · Richard Nixon, 1972 · 41,514 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
+69.7pts D vs U.S.
Place D+51.4 · U.S. R+18.2 · modeled estimate
Runner-up · Michael Dukakis, 1988 · +64.2 pts
Republican
Theodore Roosevelt1904
+4.4pts R vs U.S.
Place R+24.0 · U.S. R+19.7 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · +2.6 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.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | D | 58.9%84,078 | 41.1%58,676 | 142,754 |
Pennsylvania 43rd State Senate District sits in the Mid-Atlantic. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 65.0 points in 1964 and a Republican high of 27.8 points in 1924. The 2024 margin was 55.7 points.
A population of 251,232, a 60% non-Hispanic-white share, and a median household income of $62,212 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 7 and State Senate District 42.
The state-senate 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 43rd State Senate District. Akashic. https://akashic.app/sld-upper/42043/. Accessed May 20, 2026. License: CC BY 4.0.