Overview
- District ID
- pa-sd-031
- State
- Pennsylvania
- Chamber
- Upper chamber (state senate)
- District Code
- 031
- Land Area
- 334.1 sq mi
- Water Area
- 2.51 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
Showing all 2 counties
Places
Showing all 22 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 10 | 260,623 | 100.0% | 34.1% | 100.0% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 180,536
- Active Voters
- 169,803 (94.1%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 59,943 | 33.2% |
| Republican | 85,461 | 47.3% |
| Unaffiliated | 30,497 | 16.9% |
| Other parties | 4,625 | 2.6% |
| No party recorded | 10 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 66,983 (37.1%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 134,227 (74.3%) | 16,869 (9.3%) | 24,525 (13.6%) |
| 2021–2022 | 96,876 (53.7%) | 0 (0.0%) | 0 (0.0%) |
| 2019–2020 | 112,519 (62.3%) | 19,060 (10.6%) | 24,416 (13.5%) |
| 2017–2018 | 78,300 (43.4%) | 0 (0.0%) | 0 (0.0%) |
| 2015–2016 | 86,515 (47.9%) | 16,452 (9.1%) | 29,747 (16.5%) |
| 2013–2014 | 50,840 (28.2%) | 0 (0.0%) | 0 (0.0%) |
| 2011–2012 | 69,570 (38.5%) | 5,822 (3.2%) | 16,026 (8.9%) |
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
- 264,837 (± 599)
- Median Age
- 40.3
- Median Household Income
- $82,188 (± $2,133)
- High School Graduate or Higher (age 25+)
- 92.2%
- Bachelor's Degree or Higher (age 25+)
- 30.7%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 56,270 | 21.2% |
| 18 to 64 | 160,528 | 60.6% |
| 65 and over | 48,039 | 18.1% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 33,370 | 12.6% |
| White, not Hispanic | 195,220 | 73.7% |
| Black, not Hispanic | 20,485 | 7.7% |
| Asian, not Hispanic | 4,763 | 1.8% |
| American Indian / Alaska Native, not Hispanic | 49 | 0.0% |
| Native Hawaiian / Pacific Islander, not Hispanic | 18 | 0.0% |
| Some other race, not Hispanic | 1,967 | 0.7% |
| Two or more races, not Hispanic | 8,965 | 3.4% |
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
- 258,896
- Citizen Voting Age Population (CVAP)
- 203,481
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 227,876 | 88.0% |
| Hispanic | 31,012 | 12.0% |
| White | 197,997 | 76.5% |
| Black | 19,371 | 7.5% |
| Asian | 3,700 | 1.4% |
| American Indian / Alaska Native | 51 | 0.0% |
| Native Hawaiian / Pacific Islander | 4 | 0.0% |
| Two or More Races | 637 | 0.2% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 183,793 | 90.3% |
| Hispanic | 19,690 | 9.7% |
| White | 162,336 | 79.8% |
| Black | 16,868 | 8.3% |
| Asian | 3,535 | 1.7% |
| American Indian / Alaska Native | 717 | 0.4% |
| Native Hawaiian / Pacific Islander | 2 | 0.0% |
| Two or More Races | 440 | 0.2% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
