- Lead
- 17,134
- Total
- 169,050
- vs nation
- D+11.6
Pennsylvania 10th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 24,171
- Total
- 167,452
- vs nation
- D+10.0
- Lead
- 14,465
- Total
- 146,735
- vs nation
- D+7.8
- Lead
- 14,309
- Total
- 136,638
- vs nation
- D+6.6
- Lead
- 25,495
- Total
- 142,809
- vs nation
- D+10.6
- Lead
- 16,480
- Total
- 135,930
- vs nation
- D+14.6
- Lead
- 14,869
- Total
- 112,254
- vs nation
- D+12.7
- Lead
- 11,602
- Total
- 97,233
- vs nation
- D+3.4
Key facts
- 2024 presidential margin
- D+10.1MIT Election Lab
- Population
- 269,6302024 5-year
- Population density
- 1,239 / sq mi2024 5-year · TIGER/Line
- Land area
- 218 sq miTIGER/Line
- Median household income
- $122,1272024 5-year
- White (non-Hispanic)
- 79.4%2024 5-year
- Black
- 5.0%2024 5-year
- Hispanic / Latino
- 6.6%2024 5-year
- Peak Democratic margin
- D+30.5 in 1964MIT Election Lab
- Peak Republican margin
- R+45.8 in 1928MIT Election Lab
- Most similar
- State Senate District 6, PA · twin score 93.6
presidential history
Party record book
Pennsylvania 10th 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
65.0%
36,411 votes · D+30.5 · modeled estimate
Runner-up · Barack Obama, 2008 · 58.3%
Republican
Herbert Hoover1928
72.5%
10,921 votes · R+45.8 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · 63.2%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
94,959votes
56.7% of the vote · D+14.4 · modeled estimate
Runner-up · Kamala Harris, 2024 · 92,286 votes
Republican
Donald Trump2024
75,152votes
44.5% of the vote · D+10.1 · modeled estimate
Runner-up · Donald Trump, 2020 · 70,788 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
John Kerry2004
+14.6pts D vs U.S.
Place D+12.1 · U.S. R+2.5 · modeled estimate
Runner-up · Alton B. Parker, 1904 · +12.8 pts
Republican
Herbert Hoover1932
+30.4pts R vs U.S.
Place R+12.6 · U.S. D+17.8 · modeled estimate
Runner-up · Herbert Hoover, 1928 · +28.3 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 | 43.4%70,991 | 56.6%92,739 | 163,730 |
Pennsylvania 10th State Senate District sits in the Mid-Atlantic. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 30.5 points in 1964 and a Republican high of 45.8 points in 1928. Between 2020 and 2024 the district moved 4.3 points toward the Republican candidate; the 2024 margin was 10.1 points.
A population of 269,630, a 79% non-Hispanic-white share, and a median household income of $122,127 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 6 and State Senate District 24.
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 10th State Senate District. Akashic. https://akashic.app/sld-upper/42010/. Accessed May 20, 2026. License: CC BY 4.0.