Overview
- District ID
- pa-hd-178
- State
- Pennsylvania
- Chamber
- Lower chamber
- District Code
- 178
- Land Area
- 49.4 sq mi
- Water Area
- 0.62 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
| County | Overlap | Share of district land | Share of county land |
|---|
| Bucks County | 49.45 sq mi | 100.0% | 8.2% |
Showing all 1 county
Places
Showing all 3 places
Overlapping Congressional Districts
| Congressional district | Population in both | Share of this district's population | Share of the congressional district's population | Share of this district's land |
|---|
| PA District 1 | 65,503 | 100.0% | 8.6% | 100.0% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 51,274
- Active Voters
- 49,934 (97.4%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 17,706 | 34.5% |
| Republican | 25,402 | 49.5% |
| Unaffiliated | 7,268 | 14.2% |
| Other parties | <10 | — |
| No party recorded | <10 | — |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 26,851 (52.4%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 44,091 (86.0%) | 5,840 (11.4%) | 8,087 (15.8%) |
| 2021–2022 | 34,298 (66.9%) | 0 (0.0%) | 0 (0.0%) |
| 2019–2020 | 38,679 (75.4%) | 7,102 (13.9%) | 7,844 (15.3%) |
| 2017–2018 | 28,134 (54.9%) | 0 (0.0%) | 0 (0.0%) |
| 2015–2016 | 29,866 (58.2%) | 6,164 (12.0%) | 9,320 (18.2%) |
| 2013–2014 | 17,540 (34.2%) | 0 (0.0%) | 0 (0.0%) |
| 2011–2012 | 24,491 (47.8%) | 1,653 (3.2%) | 3,529 (6.9%) |
Turnout counts today's registered voters with a counted ballot in the cycle's elections (the odd and even year), as a share of today's registered voters. Voters who have since left the rolls are not counted.
Browse the voter list for this district (premium access; sign-in required)
Source: Civitech voter file snapshot as of 01/05/2026. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".
Demographics
- Total Population
- 65,460 (± 685)
- Median Age
- 45.5
- Median Household Income
- $147,367 (± $6,355)
- High School Graduate or Higher (age 25+)
- 97.9%
- Bachelor's Degree or Higher (age 25+)
- 54.9%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 13,870 | 21.2% |
| 18 to 64 | 36,875 | 56.3% |
| 65 and over | 14,715 | 22.5% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 2,944 | 4.5% |
| White, not Hispanic | 56,745 | 86.7% |
| Black, not Hispanic | 316 | 0.5% |
| Asian, not Hispanic | 2,698 | 4.1% |
| American Indian / Alaska Native, not Hispanic | 7 | 0.0% |
| Native Hawaiian / Pacific Islander, not Hispanic | 0 | 0.0% |
| Some other race, not Hispanic | 803 | 1.2% |
| Two or more races, not Hispanic | 1,947 | 3.0% |
Source: U.S. Census Bureau, American Community Survey 2020-2024 ACS 5-year estimates (tables B01001, B01002, B01003, B03002, B15003, B19013) for this state legislative district. Estimates are survey-based; ± figures are 90% margins of error.
Citizen Voting Age Population
- Total Citizen Population
- 64,113
- Citizen Voting Age Population (CVAP)
- 50,352
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 61,279 | 95.6% |
| Hispanic | 2,830 | 4.4% |
| White | 57,376 | 89.5% |
| Black | 340 | 0.5% |
| Asian | 2,383 | 3.7% |
| American Indian / Alaska Native | 9 | 0.0% |
| Native Hawaiian / Pacific Islander | 0 | 0.0% |
| Two or More Races | 101 | 0.2% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 48,586 | 96.5% |
| Hispanic | 1,767 | 3.5% |
| White | 46,047 | 91.5% |
| Black | 396 | 0.8% |
| Asian | 2,059 | 4.1% |
| American Indian / Alaska Native | 23 | 0.0% |
| Native Hawaiian / Pacific Islander | 0 | 0.0% |
| Two or More Races | 65 | 0.1% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
