Religious adherence is published only at the county level (U.S. Religion Census). See Allegheny County.
American Community Survey 2024 5-year (income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024.
Pennsylvania 42nd State House District
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Pennsylvania 42nd State House DistrictHarrisD+29.4
20082024
How it voted
Share of the 2024 vote
Kamala Harris ✓Democratic
64.0%
26,578
Donald TrumpRepublican
34.6%
14,354
Jill SteinGreen
1.4%
592
D+60R+60
District boundary, filled by its own 2024 D-vs-R margin — precinct detail where available, over the 1 county it's drawn from (shown faint).
The precinct map shows the 2024 presidential vote; the timeline scrubs the district’s overall result across 1892–2024, on its current boundaries.
County-level results (1 county) — table
2024 presidential result by county for Pennsylvania 42nd State House District — winner and D-vs-R margin.
County
Winner
Margin
Allegheny County, PA
Democratic
D+20.2
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5 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
Year
Won
Democratic
Republican
Other
Margin
Total
D
64.0%Harris26,578
34.6%Trump14,354
1.4%Stein592
+29.4%
41,524
D
63.6%Biden26,548
35.3%Trump14,713
1.1%Jorgensen455
+28.4%
41,716
D
58.2%Clinton21,536
37.9%Trump14,003
3.9%Johnson1,439
+20.4%
36,978
D
52.5%Obama18,832
47.5%Romney17,030
0.0%
+5.0%
35,862
D
52.8%Obama19,615
46.2%McCain17,169
1.0%Nader357
+6.6%
37,141
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presidential history
Presidential margin, 2008–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2008
+6.6%
2012
+5.0%
2016
+20.4%
2020
+28.4%
2024
+29.4%
DemocraticRepublican
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current representation
Current officeholders
DJen MazzoccoState House · 42
State legislative officeholder from OpenStates nightly current-legislator data.
The district recorded a Democratic presidential margin of D+29.4 in 2024, compared with D+6.6 in 2008. The district had about 23,200 residents, 76.1% White alone in the 2024 ACS 5-year.
Across the recorded series it reached a Democratic high of 29.4 points in 2024. Between 2020 and 2024 the district moved 1.1 points toward the Democratic candidate; the 2024 margin was 29.4 points.
A population of 63,945, a 86% non-Hispanic-white share, and a median household income of $107,779 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 20 and State House District 21.
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Political twins — state-house districts
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.
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 →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Pennsylvania 42nd State House District. Akashic. https://akashic.app/sld-lower/42042/. Accessed May 20, 2026. License: CC BY 4.0.
How did Pennsylvania 42nd State House District vote in 2024?
In 2024, Pennsylvania 42nd State House District voted Democratic by 29.4 points (D+29.4), carried by the Democratic candidate. Out of 41,524 votes cast, 26,578 went Democratic and 14,354 went Republican.
How many people live in Pennsylvania 42nd State House District?
Pennsylvania 42nd State House District has a population of 63,945 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Pennsylvania 42nd State House District?
Median household income in Pennsylvania 42nd State House District is $107,779 — above the national median of $80,734. The Pennsylvania state median is $77,971.
What is the political history of Pennsylvania 42nd State House District?
Akashic tracks 5 presidential elections in Pennsylvania 42nd State House District from 2008 to 2024. Of those, 5 went Democratic and 0 went Republican.
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