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Pennsylvania's 12th Congressional District
The current officeholder, the 2024 result, and a precinct-level model you can run yourself — built from how Pennsylvania actually voted.
Model Pennsylvania's 12th Congressional District →
Current officeholder
Summer L. Lee Democratic
2024 result
Democratic D+12.8
2024 votes cast
416,228
Office
U.S. House
Who lives in this district
This district is home to about 761,238 people, median age 39.5, median household income $70,333.
Population
761,238
Median age
39.5
Median household income
$70,333
Bachelor's degree or higher
40.8%
Race & ethnicity: White 73.8% · Black 14.8% · Hispanic 3% · Asian 3.9%
Source: U.S. Census Bureau, 2019–2023 American Community Survey (5-year).
Precinct results — 2024 general
859 precincts reported in Pennsylvania's 12th Congressional District's 2024 general election. The twenty largest:
| Precinct | Winner | Margin | Votes |
|---|---|---|---|
| 42129-MURRYSVILLE X SARDIS D 2X SARDISD 2 | Republican | R+26.0 | 3,153 |
| 42129-MURRYSVILLE X NEWLONSBURG D 2X NEWLONSBURGD 2 | Republican | R+29.6 | 3,061 |
| 42129-MANOR | Republican | R+34.0 | 2,134 |
| 42129-NORTH HUNTINGDON W 3 P 2W 3P 2 | Republican | R+30.4 | 1,977 |
| 42129-PENN W 3 P 1W 3P 1 | Republican | R+42.1 | 1,956 |
| 42129-NORTH HUNTINGDON W 3 P 1W 3P 1 | Republican | R+32.3 | 1,930 |
| 42003-JEFFERSON HILLS D 9D 9 | Republican | R+20.4 | 1,864 |
| 42129-MURRYSVILLE X EAST MANORDALEX EAST MANORDALE | Republican | R+31.3 | 1,809 |
| 42003-PLUM D 19D 19 | Republican | R+25.5 | 1,796 |
| 42129-MURRYSVILLE X WEST MURRYSVILLEX WEST MURRYSVILLE | Republican | R+23.8 | 1,758 |
| 42129-PENN W 4 P 1W 4P 1 | Republican | R+43.2 | 1,698 |
| 42129-PENN W 2 P 2W 2P 2 | Republican | R+38.3 | 1,640 |
| 42003-SOUTH PARK D 13D 13 | Republican | R+28.0 | 1,617 |
| 42003-PITTSBURGH W 2 D 1W 2D 1 | Democratic | D+48.1 | 1,542 |
| 42129-MURRYSVILLE X SOUTH MURRYSVILLEX SOUTH MURRYSVILLE | Republican | R+29.7 | 1,527 |
| 42129-NORTH HUNTINGDON W 1 P 3W 1P 3 | Republican | R+44.5 | 1,511 |
| 42003-PLUM D 1D 1 | Republican | R+15.3 | 1,507 |
| 42129-MURRYSVILLE X MANORDALEX MANORDALE | Republican | R+30.3 | 1,497 |
| 42129-PENN W 1 P 1W 1P 1 | Republican | R+46.4 | 1,490 |
| 42003-PITTSBURGH W 2 D 2W 2D 2 | Democratic | D+30.2 | 1,467 |
All 859 precincts are modelable — open the race in the simulator and drill to precinct grain.
Find your district
Enter a ZIP code or a district (e.g. NC-4) to find your U.S. House district and who represents it.
Model Pennsylvania's 12th Congressional District in five steps
- Set the candidates. Name the contenders for the Pennsylvania's 12th Congressional District (or keep the generic Democrat / Republican defaults). The map starts from the canonical mixed-grain 2024 presidential baseline.
- Apply a swing. Move vote share statewide, or by demographic cohort, with a slider. The map and the running tally recompute instantly.
- Model turnout. Mobilize or depress turnout for any group — turnout and persuasion are modeled separately, the way a real campaign thinks about them.
- Explore local geography. Zoom from the state through counties to the finest supported reporting grain and adjust the places available in the model.
- Roll up & share. Roll the result up to chamber control, then share the exact versioned scenario.
Open Pennsylvania's 12th Congressional District in the simulator →