Pennsylvania 15th 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
Barack Obama2008
56.8%
67,310 votes · D+14.9 · modeled estimate
Runner-up · Joe Biden, 2020 · 56.8%
Republican
Herbert Hoover1928
81.9%
41,882 votes · R+64.5 · modeled estimate
Runner-up · Theodore Roosevelt, 1904 · 69.9%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
75,764votes
56.8% of the vote · D+14.9 · modeled estimate
Runner-up · Kamala Harris, 2024 · 74,829 votes
Republican
Donald Trump2024
58,760votes
43.5% of the vote · D+11.9 · modeled estimate
Runner-up · Donald Trump, 2020 · 55,931 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
Kamala Harris2024
+13.4pts D vs U.S.
Place D+11.9 · U.S. R+1.5 · modeled estimate
Runner-up · Joe Biden, 2020 · +10.4 pts
Republican
Herbert Hoover1928
+47.1pts R vs U.S.
Place R+64.5 · U.S. R+17.5 · modeled estimate
Runner-up · Herbert Hoover, 1932 · +35.1 pts
current representation
Current officeholders
DPatty KimState Senate · 15
State legislative officeholder from OpenStates nightly current-legislator data.
U.S. House elections · 3 House
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.
Source · Akashic county-allocated estimate from certified county returns, House; not precinct-counted.
Year
Vote lead
Democratic
Republican
Total
2024
D
54.5%71,838
45.5%59,948
131,786
2020
D
52.2%67,532
47.8%61,808
129,340
2018
D
54.1%52,447
45.9%44,538
96,985
Pennsylvania 15th State Senate District sits in the Mid-Atlantic. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 14.9 points in 2008 and a Republican high of 64.5 points in 1928. Between 2020 and 2024 the district moved 3.0 points toward the Republican candidate; the 2024 margin was 11.9 points.
A population of 259,166, a 58% non-Hispanic-white share, and a median household income of $76,979 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 56 and State Senate District 15.
Akashic
Political twins — state-senate districts
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.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons → · Or open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Pennsylvania 15th State Senate District. Akashic. https://akashic.app/sld-upper/42015/. Accessed May 20, 2026. License: CC BY 4.0.
How did Pennsylvania 15th State Senate District vote in 2024?
In 2024, Pennsylvania 15th State Senate District voted Democratic by 11.9 points (D+11.9), carried by the Democratic candidate. Out of 135,182 votes cast, 74,829 went Democratic and 58,760 went Republican.
When did Pennsylvania 15th State Senate District last vote Republican?
The most recent presidential election in which Pennsylvania 15th State Senate District voted Republican was 2004.
How many people live in Pennsylvania 15th State Senate District?
Pennsylvania 15th State Senate District has a population of 259,166 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Pennsylvania 15th State Senate District?
Median household income in Pennsylvania 15th State Senate District is $76,979 — below the national median of $80,734. The Pennsylvania state median is $77,971.
What is the political history of Pennsylvania 15th State Senate District?
Akashic tracks 38 presidential elections in Pennsylvania 15th State Senate District from 1876 to 2024. Of those, 9 went Democratic and 28 went Republican.