Pennsylvania 66th State House District, Pennsylvania: Populist district. In 2024, voted R+50%. Republican peak: R+52 in 1924.
Key facts
- 2024 presidential margin
- R+50MIT Election Lab
- Political archetype
- PopulistAkashic typology
- Population
- 77,2192024 5-year
- Median household income
- $59,3442024 5-year
- White (non-Hispanic)
- 94.3%2024 5-year
- Black
- 1.2%2024 5-year
- Hispanic / Latino
- 1.4%2024 5-year
- Peak Democratic margin
- D+16 in 1964MIT Election Lab
- Peak Republican margin
- R+52 in 1924MIT Election Lab
Constituent county margins for State House District 66, PAOne cell per constituent county, colored by 2024 presidential margin from deep red (Republican) through neutral to deep blue (Democratic), ordered bluest first.
R+60D+60
One cell per constituent county. Ordered by 2024 D-vs-R margin (bluest first). Hover for county-level numbers.
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 9,807 | 29,969 | 40,188 | ||
| R | 9,602 | 29,242 | 39,372 | ||
| R | 8,281 | 25,188 | 34,907 | ||
| R | 10,601 | 21,586 | 32,817 | ||
| R | 13,302 | 19,981 | 33,785 | ||
| R | 12,432 | 21,506 | 34,120 | ||
| R | 11,056 | 18,220 | 30,199 | ||
| R | 11,417 | 13,327 | 28,741 | ||
| D | 12,101 | 11,676 | 31,092 | ||
| R | 12,868 | 15,761 | 28,858 | ||
| R | 12,293 | 18,903 | 31,317 | ||
| R | 11,850 | 15,897 | 29,411 | ||
| R | 13,340 | 15,778 | 29,561 | ||
| R | 9,375 | 18,910 | 28,634 | ||
| R | 11,729 | 16,198 | 30,074 | ||
| D | 17,907 | 13,075 | 31,037 | ||
| R | 13,102 | 21,378 | 34,552 | ||
| R | 11,153 | 20,519 | 31,691 | ||
| R | 11,032 | 18,530 | 29,737 | ||
| R | 9,063 | 14,472 | 23,803 | ||
| R | 9,985 | 16,749 | 26,956 | ||
| R | 13,393 | 18,325 | 31,792 | ||
| R | 17,246 | 18,582 | 36,230 | ||
| R | 10,027 | 13,358 | 24,644 | ||
| R | 6,257 | 19,943 | 26,474 | ||
| R | 3,494 | 15,793 | 23,790 | ||
| R | 3,837 | 11,430 | 16,767 | ||
| R | 4,216 | 6,295 | 11,777 | ||
| O | 3,150 | 2,299 | 12,040 | ||
| R | 3,775 | 8,229 | 13,214 | ||
| R | 2,721 | 8,622 | 12,058 | ||
| R | 3,772 | 8,234 | 12,699 | ||
| R | 4,776 | 7,837 | 13,153 | ||
| R | 4,108 | 5,931 | 11,126 | ||
| — | — | — | — | ||
| — | — | — | — | ||
| — | — | — | — | ||
| — | — | — | — |
Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
26.2%
Irish
12.2%
English
10.4%
Italian
9.1%
American
5.6%
Polish
4.8%
Scottish
1.7%
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
Age distribution by sex
Median age: 42.3 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
Median household income
2024 inflation-adjusted dollars
$59,344
State House District 66 ranks near the middle of US counties.
State House District 66$59,344
Pennsylvania$77,971
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
14.1%
Children face moderate poverty.
Children under 1818.1%
Working age (18–64)13.0%
Seniors (65+)12.8%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
95.1%
speak English only
Other Indo-European3.6%
Spanish0.7%
Asian & Pacific Islander0.3%
Other languages0.3%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 52.0% of residents not counted as adherents by any reporting body.
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.
The Democratic margin in Pennsylvania 66th State House District peaked at sixteen points in 1964. By 1996 the district had flipped, voting Republican for the first time in many years. The 2024 margin was fifty points, the most Republican-leaning result in the district's modern history.
The economic context is the key. The median household income of $59,344 sits well below state and national norms, and 14% of residents live below the federal poverty line. The shift here is part of a broader realignment of working-class places across the country.
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.
State House District 66, Pennsylvania. Akashic. https://akashic.app/sld-lower/42066/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did State House District 66, Pennsylvania vote in 2024?
In 2024, State House District 66, Pennsylvania voted Republican by 50.2 points (R+50), carried by the Republican candidate. Out of 40,188 votes cast, 9,807 went Democratic and 29,969 went Republican.
What is State House District 66, Pennsylvania's political archetype?
Akashic classifies State House District 66, Pennsylvania as a "Populist" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 2 times, Republican 31 times, and other 1 times.
When did State House District 66, Pennsylvania last vote Democratic?
The most recent presidential election in which State House District 66, Pennsylvania voted Democratic was 1992.
How many people live in State House District 66, Pennsylvania?
State House District 66, Pennsylvania has a population of 77,219 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in State House District 66, Pennsylvania?
Median household income in State House District 66, Pennsylvania is $59,344 — below the national median of $80,734. The Pennsylvania state median is $77,971.
What is the political history of State House District 66, Pennsylvania?
Akashic tracks 38 presidential elections in State House District 66, Pennsylvania from 1876 to 2024. Of those, 2 went Democratic and 31 went Republican. The district's archetype — "Populist" — captures the overall trajectory of that voting record.