Pennsylvania State Senate District 45

State Legislative District Profile (Upper Chamber)

Overview

District ID
pa-sd-045
State
Pennsylvania
Chamber
Upper chamber (state senate)
District Code
045
Land Area
162.4 sq mi
Water Area
4.44 sq mi

Boundary

Boundary of Pennsylvania State Senate District 45

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Allegheny County162.43 sq mi100.0%22.3%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Plum borough28.57 sq mi17.6%100.0%
Monroeville municipality19.72 sq mi12.1%100.0%
West Mifflin borough14.22 sq mi8.8%100.0%
White Oak borough6.62 sq mi4.1%100.0%
Baldwin borough5.77 sq mi3.6%100.0%
McKeesport city5.05 sq mi3.1%100.0%
Lincoln borough4.80 sq mi3.0%100.0%
Whitehall borough3.33 sq mi2.0%100.0%
Clairton city2.77 sq mi1.7%100.0%
Munhall borough2.29 sq mi1.4%100.0%
Duquesne city1.82 sq mi1.1%100.0%
Castle Shannon borough1.60 sq mi1.0%100.0%
Glassport borough1.58 sq mi1.0%100.0%
North Braddock borough1.49 sq mi0.9%100.0%
Brentwood borough1.45 sq mi0.9%100.0%
Liberty borough1.43 sq mi0.9%100.0%
Port Vue borough1.13 sq mi0.7%100.0%
Greenock CDP1.07 sq mi0.7%100.0%
Turtle Creek borough0.97 sq mi0.6%100.0%
Dravosburg borough0.97 sq mi0.6%100.0%
West Homestead borough0.92 sq mi0.6%100.0%
Homestead borough0.58 sq mi0.4%100.0%
Braddock borough0.56 sq mi0.3%100.0%
Pitcairn borough0.51 sq mi0.3%99.9%
Versailles borough0.48 sq mi0.3%100.0%

Showing top 25 of 34 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 12238,94695.9%31.2%98.7%
PA District 1710,2344.1%1.3%1.3%

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

Voters

Registered Voters
171,762
Active Voters
162,194 (94.4%)

Party Registration

PartyVotersShare
Democratic92,34353.8%
Republican53,57631.2%
Unaffiliated21,15912.3%
Other parties4,6442.7%
No party recorded400.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–202670,417 (41.0%)0 (0.0%)0 (0.0%)
2023–2024132,402 (77.1%)31,165 (18.1%)14,242 (8.3%)
2021–202299,774 (58.1%)0 (0.0%)0 (0.0%)
2019–2020119,528 (69.6%)36,351 (21.2%)13,580 (7.9%)
2017–201883,512 (48.6%)0 (0.0%)0 (0.0%)
2015–201696,810 (56.4%)35,162 (20.5%)16,346 (9.5%)
2013–201453,094 (30.9%)0 (0.0%)0 (0.0%)
2011–201281,586 (47.5%)15,013 (8.7%)7,255 (4.2%)

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
245,396 (± 803)
Median Age
43.1
Median Household Income
$63,420 (± $1,805)
High School Graduate or Higher (age 25+)
94.1%
Bachelor's Degree or Higher (age 25+)
30.0%

Population by Age

GroupPeopleShare
Under 1847,60719.4%
18 to 64143,23558.4%
65 and over54,55422.2%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)6,1222.5%
White, not Hispanic183,00674.6%
Black, not Hispanic36,47114.9%
Asian, not Hispanic7,0672.9%
American Indian / Alaska Native, not Hispanic1340.1%
Native Hawaiian / Pacific Islander, not Hispanic110.0%
Some other race, not Hispanic1,3120.5%
Two or more races, not Hispanic11,2734.6%

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
240,887
Citizen Voting Age Population (CVAP)
193,954

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic235,48297.8%
Hispanic5,4122.2%
White185,74477.1%
Black36,05615.0%
Asian4,8322.0%
American Indian / Alaska Native1350.1%
Native Hawaiian / Pacific Islander110.0%
Two or More Races1,1500.5%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic190,48398.2%
Hispanic3,4731.8%
White156,57480.7%
Black29,10415.0%
Asian3,6351.9%
American Indian / Alaska Native1,3170.7%
Native Hawaiian / Pacific Islander30.0%
Two or More Races5070.3%

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