Pennsylvania State Senate District 15

State Legislative District Profile (Upper Chamber)

Overview

District ID
pa-sd-015
State
Pennsylvania
Chamber
Upper chamber (state senate)
District Code
015
Land Area
278.1 sq mi
Water Area
20.2 sq mi

Boundary

Boundary of Pennsylvania State Senate District 15

Boundary as GeoJSON

Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.

Counties

CountyOverlapShare of district landShare of county land
Dauphin County278.10 sq mi100.0%53.0%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Hershey CDP14.30 sq mi5.1%100.0%
Harrisburg city8.12 sq mi2.9%100.0%
Colonial Park CDP5.04 sq mi1.8%100.0%
Linglestown CDP3.83 sq mi1.4%100.0%
Progress CDP3.01 sq mi1.1%100.0%
Skyline View CDP2.67 sq mi1.0%100.0%
Paxtonia CDP2.31 sq mi0.8%100.0%
Middletown borough2.03 sq mi0.7%100.0%
Steelton borough1.90 sq mi0.7%100.0%
Palmdale CDP1.48 sq mi0.5%100.0%
Lawnton CDP1.46 sq mi0.5%100.0%
Hummelstown borough1.24 sq mi0.4%100.0%
Rutherford CDP1.24 sq mi0.4%100.0%
Highspire borough0.72 sq mi0.3%100.0%
Penbrook borough0.45 sq mi0.2%99.9%
Dauphin borough0.43 sq mi0.2%100.0%
Paxtang borough0.41 sq mi0.1%100.0%
Royalton borough0.32 sq mi0.1%100.0%
Bressler CDP0.32 sq mi0.1%99.9%
Union Deposit CDP0.28 sq mi0.1%99.9%
Enhaut CDP0.23 sq mi0.1%99.8%
Oberlin CDP0.13 sq mi<0.1%99.9%

Showing all 22 places

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
PA District 10259,166100.0%33.9%100.0%

Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).

Voters

Registered Voters
180,851
Active Voters
169,187 (93.6%)

Party Registration

PartyVotersShare
Democratic81,29445.0%
Republican64,79135.8%
Unaffiliated29,99716.6%
Other parties<10—
No party recorded<10—

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–202675,010 (41.5%)0 (0.0%)0 (0.0%)
2023–2024131,584 (72.8%)23,138 (12.8%)19,767 (10.9%)
2021–202295,342 (52.7%)0 (0.0%)0 (0.0%)
2019–2020110,956 (61.4%)27,913 (15.4%)21,602 (11.9%)
2017–201879,124 (43.8%)0 (0.0%)0 (0.0%)
2015–201686,202 (47.7%)22,404 (12.4%)24,955 (13.8%)
2013–201452,370 (29.0%)0 (0.0%)0 (0.0%)
2011–201270,658 (39.1%)10,281 (5.7%)13,718 (7.6%)

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
262,406 (± 441)
Median Age
38.8
Median Household Income
$76,979 (± $2,044)
High School Graduate or Higher (age 25+)
91.3%
Bachelor's Degree or Higher (age 25+)
36.2%

Population by Age

GroupPeopleShare
Under 1858,68022.4%
18 to 64157,53560.0%
65 and over46,19117.6%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)33,26512.7%
White, not Hispanic150,77557.5%
Black, not Hispanic46,91717.9%
Asian, not Hispanic18,7367.1%
American Indian / Alaska Native, not Hispanic1940.1%
Native Hawaiian / Pacific Islander, not Hispanic560.0%
Some other race, not Hispanic1,7590.7%
Two or more races, not Hispanic10,7044.1%

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
249,242
Citizen Voting Age Population (CVAP)
192,105

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic220,11388.3%
Hispanic29,13511.7%
White152,53361.2%
Black44,81518.0%
Asian13,2275.3%
American Indian / Alaska Native1760.1%
Native Hawaiian / Pacific Islander580.0%
Two or More Races8630.3%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic175,00891.1%
Hispanic17,0938.9%
White127,86066.6%
Black35,72418.6%
Asian10,0525.2%
American Indian / Alaska Native1,1390.6%
Native Hawaiian / Pacific Islander590.0%
Two or More Races5910.3%

Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).