- Lead
- 105,093
- Total
- 155,729
- vs nation
- D+69.0
Pennsylvania 4th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 112,992
- Total
- 159,516
- vs nation
- D+66.4
- Lead
- 105,499
- Total
- 149,132
- vs nation
- D+68.7
- Lead
- 100,732
- Total
- 143,295
- vs nation
- D+66.4
- Lead
- 106,188
- Total
- 147,091
- vs nation
- D+64.9
- Lead
- 91,769
- Total
- 134,959
- vs nation
- D+70.5
- Lead
- 74,774
- Total
- 113,016
- vs nation
- D+65.6
- Lead
- 66,509
- Total
- 102,980
- vs nation
- D+56.1
Key facts
- 2024 presidential margin
- D+67.5MIT Election Lab
- Population
- 267,4492024 5-year
- Population density
- 5,943 / sq mi2024 5-year · TIGER/Line
- Land area
- 45 sq miTIGER/Line
- Median household income
- $77,1012024 5-year
- White (non-Hispanic)
- 38.2%2024 5-year
- Black
- 49.1%2024 5-year
- Hispanic / Latino
- 4.6%2024 5-year
- Peak Democratic margin
- D+75.1 in 1964MIT Election Lab
- Peak Republican margin
- R+11.3 in 1924MIT Election Lab
- Most similar
- State Senate District 7, PA · twin score 97.4
presidential history
Party record book
Pennsylvania 4th 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
87.5%
112,991 votes · D+75.1 · modeled estimate
Runner-up · Barack Obama, 2008 · 85.8%
Republican
Calvin Coolidge1924
47.7%
12,079 votes · R+11.3 · modeled estimate
Runner-up · Theodore Roosevelt, 1904 · 44.2%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
135,728votes
85.1% of the vote · D+70.8 · modeled estimate
Runner-up · Kamala Harris, 2024 · 129,620 votes
Republican
Richard Nixon1972
25,840votes
25.8% of the vote · D+47.6 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 24,847 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
+72.5pts D vs U.S.
Place D+54.2 · U.S. R+18.2 · modeled estimate
Runner-up · George McGovern, 1972 · +70.8 pts
Republican
Calvin Coolidge1924
−13.9pts R vs U.S.
Place R+11.3 · U.S. R+25.2 · modeled estimate
Runner-up · William H. Taft, 1912 · −14.6 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 | 72.6%94,785 | 27.4%35,744 | 130,529 |
Anchored in the rural and small-town communities of north-central Pennsylvania, this district delivered a 25-point-plus Republican presidential margin in 2024, placing it well outside the state's competitive range.
Across the recorded series it reached a Democratic high of 75.1 points in 1964 and a Republican high of 11.3 points in 1924. Between 2020 and 2024 the district moved 3.3 points toward the Republican candidate; the 2024 margin was 67.5 points.
A population of 267,449, a 38% non-Hispanic-white share, and a median household income of $77,101 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 21.
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 4th State Senate District. Akashic. https://akashic.app/sld-upper/42004/. Accessed May 20, 2026. License: CC BY 4.0.