House districts / Pennsylvania
Pennsylvania's 12th congressional district
PA-12. Same lines in 2026 as in 2022.
Fundraising
- Summer Lee Das of Oct 14, 2026Raised $1.6mSpent $929k · Cash $1.7m
- James Hayes Ras of Oct 14, 2026Raised $81kSpent $70k · Cash $11k
3 other 2026 candidates filed reports (primary candidates). 1 other candidate has not filed.
Federal Election Commission, candidate totals, public domain.
President in this district
PollCheck calculation from precinct returns on the 2026 lines (method).
| Year | Democrat | Republican | Other | Margin |
|---|---|---|---|---|
| 2024 | Harris 59.1% | Trump 40.0% | 0.9% | D+19.1 |
| 2020 | Biden 59.4% | Trump 39.5% | 1.1% | D+19.9 |
| 2016 | Clinton 57.1% | Trump 39.6% | 3.3% | D+17.5 |
Who lives here
| Measure | This district | US |
|---|---|---|
| People | ||
| Population | 760,856 | |
| Adults (18+) | 625,326 | |
| Citizens, % of adults | 96.5% | 92.1% |
| Age, % of adults | ||
| 18 to 29 | 22.1% | 20.3% |
| 30 to 44 | 25.1% | 25.9% |
| 45 to 64 | 28.7% | 31.8% |
| 65 and over | 24.0% | 22.0% |
| Race and Hispanic origin, % of residents | ||
| White | 73.0% | 57.4% |
| Black | 14.8% | 11.9% |
| Hispanic | 3.1% | 19.3% |
| Asian | 4.2% | 5.9% |
| Other or more than one | 4.9% | 5.5% |
| Education and income | ||
| Bachelor's degree or higher, % of 25+ | 41.9% | 35.7% |
| Median household income | $71,986 | $80,734 |
American Community Survey 2020-2024 5-year estimates for this district. The tick marks the US figure.
Winning margin
Results since 1976
| Year | Winner | Share | Runner-up | Share | Margin |
|---|---|---|---|---|---|
| Current lines (2022 on) seat count changed from 18 to 17 after the census | |||||
| 2024 | Summer L. Lee Democrat | 56.4% | James Hayes Republican | 43.6% | D+12.8 |
| 2022 | Summer Lee Democrat | 56.2% | Mike Doyle Republican | 43.8% | D+12.4 |
| Earlier lines, elections 2018-2020 League of Women Voters v. Commonwealth: Pennsylvania Supreme Court map (2018) | |||||
| 2020 | Frederick B. Keller Republican | 70.8% | Lee Griffin Democrat | 29.2% | R+41.7 |
| 2018 | Tom Marino Republican | 66.0% | Marc Friedenberg Democrat | 34.0% | R+32.1 |
| Earlier lines, elections 2012-2016 seat count changed from 19 to 18 after the census | |||||
| 2016 | Keith J. Rothfus Republican | 61.8% | Erin R. McClelland Democrat | 38.2% | R+23.5 |
| 2014 | Keith J. Rothfus Republican | 59.3% | Erin McClelland Democrat | 40.7% | R+18.6 |
| 2012 | Keith J. Rothfus Republican | 51.7% | Mark S. Critz Democrat | 48.3% | R+3.5 |
| Earlier lines, elections 2002-2010 seat count changed from 21 to 19 after the census | |||||
| 2010 | Mark S. Critz Democrat | 50.8% | Tim Burns Republican | 49.2% | D+1.6 |
| 2008 | John P. Murtha Democrat | 57.9% | William Russell Republican | 42.1% | D+15.7 |
| 2006 | John P. Murtha Democrat | 60.8% | Diana Irey Republican | 39.2% | D+21.6 |
| 2004 | John P. Murtha Democrat | 100.0% | D+100.0 | ||
| 2002 | John P. Murtha Democrat | 73.5% | Bill Choby Republican | 26.5% | D+47.0 |
| Earlier lines, elections 1992-2000 seat count changed from 23 to 21 after the census | |||||
| 2000 | John P. Murtha Democrat | 70.8% | Bill Choby Republican others 1.6% | 27.5% | D+43.3 |
| 1998 | John P. Murtha Democrat | 68.5% | Timothy E. Holloway Republican | 31.5% | D+37.0 |
| 1996 | John P. Murtha Democrat | 70.0% | Bill Choby Republican | 30.0% | D+40.0 |
| 1994 | John P. Murtha Democrat | 68.9% | Bill Choby Republican | 31.1% | D+37.8 |
| 1992 | John P. Murtha Democrat | 100.0% | D+100.0 | ||
| Earlier lines, elections 1982-1990 seat count changed from 25 to 23 after the census | |||||
| 1990 | John P. Murtha Democrat | 61.7% | Willeam A. Choby Republican | 38.3% | D+23.5 |
| 1988 | John P. Murtha Democrat | 100.0% | D+100.0 | ||
| 1986 | John P. Murtha Democrat | 67.4% | Kathy Holtzman Republican | 32.6% | D+34.8 |
| 1984 | John P. Murtha Democrat | 69.1% | Thomas J. Fullard III Republican others 1.4% | 29.5% | D+39.5 |
| 1982 | John P. Murtha Democrat | 61.1% | William N. Tuscano Republican others 4.5% | 34.4% | D+26.7 |
| Earlier lines, elections 1976-1980 | |||||
| 1980 | John P. Murtha Democrat | 59.4% | Charles A. Getty Republican | 40.6% | D+18.8 |
| 1978 | John P. Murtha Democrat | 68.7% | Luther V. Elkin Republican | 31.3% | D+37.4 |
| 1976 | John P. Murtha Democrat | 67.7% | Theodore L. Humes Republican | 32.3% | D+35.4 |
More on Pennsylvania
Other Pennsylvania districts
About these results
Shares count all candidate votes, including write-ins, with a candidate's votes on several party lines added together. Each result is on the lines in force at the time. Mid-decade redraws before 2016 may be unmarked.
President in this district: 2016 and 2020 are estimates: precinct votes are split between districts by census block.
Counties only partly inside the district show the 2024 result for that part; estimates are labelled.
Margin chart: winner minus runner-up. Gaps are unopposed races; dashed lines are new district lines.
Sources
Results: MIT Election Data and Science Lab, U.S. House 1976-2016 (doi:10.7910/DVN/IG0UN2, CC0; via MEDSL/constituency-returns), and Clerk of the US House, Statistics of the Presidential and Congressional Election 2018-2024 (public domain).
Presidential results: PollCheck calculation from MIT Election Data and Science Lab 2024 precinct returns (doi:10.7910/DVN/XDJYKC, doi:10.7910/DVN/USBYR4, CC0; state totals doi:10.7910/DVN/42MVDX, CC0) and Voting and Election Science Team 2016 and 2020 precinct results and shapes (doi:10.7910/DVN/NH5S2I, doi:10.7910/DVN/K7760H, CC BY 4.0), with US Census Bureau 2020 block populations and block equivalency files (public domain). Official figures: Texas Legislative Council (2024 on the 2026 lines); Louisiana, New Jersey, California and Washington election offices (county totals). Certified results transcribed by Wikipedia (CC BY-SA 4.0): Maine 2024 by district: 2024 United States presidential election in Maine (revision 1382530995); Indiana county totals: 2024 United States presidential election in Indiana (revision 1382505975); Oregon county totals: 2024 United States presidential election in Oregon (revision 1382605746).
District lines: US Census Bureau TIGER/Line 2026 (120th Congress) and 2025 cartographic boundary files (119th Congress), public domain.
Members: unitedstates/congress-legislators (CC0).
Counties: US Census Bureau 2024 cartographic boundary file (public domain); 2024 county results summed from the same MEDSL precinct returns, with the official county totals above.
Demographics: US Census Bureau, American Community Survey 5-year estimates 2020-2024 (public domain).
2028 candidates: Federal Election Commission (public domain).
Photos: official portraits, public domain (US government); see Photo credits.
PollCheck US. Data through November 5, 2026. Photo credits