HarrisDemocratic19.7%6,268TrumpRepublican79.5%25,250OtherAll other candidates0.8%240
R+59.8- Lead
- 18,982
- Total
- 31,758
- vs nation
- R+58.3
modeled Census-place estimatemodeled estimate
Akashicstate house district
Pennsylvania 66th State House District
Contests in this Place (46 available)
President38 · 1876–2024 · 3 mapped
▦ precinct · ▥ counties · ▢ no spatial detail
President margin by year
Place winner margin
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
The precinct map shows the 2024 presidential vote; the timeline scrubs the district’s overall result across 1892–2024, on its current boundaries.
President results by year
Modeled candidate-vote estimate on current district boundaries
BidenDemocratic19.5%6,120TrumpRepublican79.2%24,816OtherAll other candidates1.3%401
R+59.7- Lead
- 18,696
- Total
- 31,337
- vs nation
- R+64.1
modeled Census-place estimatemodeled estimate
ClintonDemocratic18.3%4,967TrumpRepublican77.5%21,058OtherAll other candidates4.2%1,132
R+59.3- Lead
- 16,091
- Total
- 27,157
- vs nation
- R+61.3
modeled Census-place estimatemodeled estimate
ObamaDemocratic25.7%6,434RomneyRepublican72.2%18,080OtherAll other candidates2.1%528
R+46.5- Lead
- 11,646
- Total
- 25,042
- vs nation
- R+50.4
modeled Census-place estimatemodeled estimate
ObamaDemocratic33.0%8,553McCainRepublican64.7%16,736OtherAll other candidates2.3%591
R+31.6- Lead
- 8,183
- Total
- 25,880
- vs nation
- R+38.9
modeled Census-place estimatemodeled estimate
KerryDemocratic30.1%7,892BushRepublican69.3%18,156OtherAll other candidates0.6%154
R+39.2- Lead
- 10,264
- Total
- 26,202
- vs nation
- R+36.7
modeled Census-place estimatemodeled estimate
GoreDemocratic30.7%7,145BushRepublican66.2%15,432OtherAll other candidates3.1%732
R+35.6- Lead
- 8,287
- Total
- 23,309
- vs nation
- R+36.1
modeled Census-place estimatemodeled estimate
ClintonDemocratic34.4%7,474DoleRepublican51.7%11,227OtherAll other candidates14.0%3,032
R+17.3- Lead
- 3,753
- Total
- 21,733
- vs nation
- R+25.8
modeled Census-place estimatemodeled estimate
Key facts
- 2024 presidential margin
- R+59.8MIT Election Lab
- Population
- 62,1812024 5-year
- Population density
- 63 / sq mi2024 5-year · TIGER/Line
- Land area
- 987 sq miTIGER/Line
- Median household income
- $59,4212024 5-year
- White (non-Hispanic)
- 95.4%2024 5-year
- Black
- 0.3%2024 5-year
- Hispanic / Latino
- 0.8%2024 5-year
- Peak Democratic margin
- D+7.7 in 1964MIT Election Lab
- Peak Republican margin
- R+59.8 in 2024MIT Election Lab
- Most similar
- State House District 63, PA · twin score 98.0
presidential history
Party record book
Pennsylvania 66th State House 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
53.8%
13,000 votes · D+7.7 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 44.2%
Republican
Donald Trump2024
79.5%
25,250 votes · R+59.8 · modeled estimate
Runner-up · Donald Trump, 2020 · 79.2%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Lyndon B. Johnson1964
13,000votes
53.8% of the vote · D+7.7 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 12,916 votes
Republican
Donald Trump2024
25,250votes
79.5% of the vote · R+59.8 · modeled estimate
Runner-up · Donald Trump, 2020 · 24,816 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
Woodrow Wilson1912
−13.2pts D vs U.S.
Place D+6.4 · U.S. D+19.5 · a third-party candidate carried the Place · modeled estimate
Runner-up · Jimmy Carter, 1980 · −14.4 pts
Republican
Donald Trump2020
+64.1pts R vs U.S.
Place R+59.7 · U.S. D+4.5 · modeled estimate
Runner-up · Donald Trump, 2016 · +61.3 pts
current representation
Current officeholders
RBrian SmithState House · 66
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.
Posting an R+59.8 margin in 2024, this district ranks among the deepest red constituencies in the state, suggesting a rural or small-town electorate with little competitive history at the federal level.
Across the recorded series it reached a Democratic high of 7.7 points in 1964 and a Republican high of 59.8 points in 2024. The 2024 margin was 59.8 points.
A population of 62,181, a 95% non-Hispanic-white share, and a median household income of $59,421 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 63 and State House District 69.
Political twins — state-house districts
The state-house districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
State House District 63
Pennsylvania
98.0twin score
2012–2024 trajectory
State House District 69
Pennsylvania
97.5twin score
2012–2024 trajectory
State House District 84
Pennsylvania
96.4twin score
2012–2024 trajectory
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 66th State House District. Akashic. https://akashic.app/sld-lower/42066/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Pennsylvania at the ballot boxAll elections →
Places within Pennsylvania 66th State House District
counties it covers2
Frequently asked questions
How did Pennsylvania 66th State House District vote in 2024?
In 2024, Pennsylvania 66th State House District voted Republican by 59.8 points (R+59.8), carried by the Republican candidate. Out of 31,758 votes cast, 6,268 went Democratic and 25,250 went Republican.
When did Pennsylvania 66th State House District last vote Democratic?
The most recent presidential election in which Pennsylvania 66th State House District voted Democratic was 1964.
How many people live in Pennsylvania 66th State House District?
Pennsylvania 66th State House District has a population of 62,181 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Pennsylvania 66th State House District?
Median household income in Pennsylvania 66th State House District is $59,421 — below the national median of $80,734. The Pennsylvania state median is $77,971.
What is the political history of Pennsylvania 66th State House District?
Akashic tracks 38 presidential elections in Pennsylvania 66th State House District from 1876 to 2024. Of those, 1 went Democratic and 36 went Republican.