Pennsylvania's 12th congressional district: election results

U.S. House elections in Pennsylvania's 12th congressional district, 1976 to 2024: winners, vote shares and margins. District lines are redrawn after each census, so the area covered changes over time.

Current representative: Summer L. Lee (Democrat), term ends 2027-01-03.

Pennsylvania's 12th congressional district: Republican minus Democratic share, in points. Bars above the line lean Republican, below lean Democratic.

Year	Winner	Party	Share	Margin
2024	Summer Lee	Democratic	56.4%	12.8
2022	Summer Lee	Democratic	56.2%	12.4
2020	Frederick B. Keller	Republican	70.8%	41.7
2019 special	Frederick B. Keller	Republican	68.1%	36.2
2018	Tom Marino	Republican	66.0%	32.1
2016	Keith J. Rothfus	Republican	61.8%	23.5
2014	Keith J. Rothfus	Republican	59.3%	18.6
2012	Keith J. Rothfus	Republican	51.7%	3.5
2010	Mark S. Critz	Democratic	50.8%	1.6
2010 special	Mark S. Critz	Democratic	52.6%	7.7
2008	John P. Murtha	Democratic	57.9%	15.7
2006	John P. Murtha	Democratic	60.8%	21.6
2004	John P. Murtha	Democratic	100.0%	—
2002	John P. Murtha	Democratic	73.5%	47.0
2000	John P. Murtha	Democratic	70.8%	43.3
1998	John P. Murtha	Democratic	68.5%	37.0
1980	John P. Murtha	Democratic	59.4%	18.8
1978	John P. Murtha	Democratic	68.7%	37.4
1976	John P. Murtha	Democratic	67.7%	35.4

2024

Candidate	Party	Votes	Share
Summer Lee Won	DEM	234,802	56.41%
James Hayes	REP	181,426	43.59%
Total		416,228

2022

Candidate	Party	Votes	Share
Summer Lee Won	DEM	184,674	56.20%
Mike Doyle	REP	143,946	43.80%
Total		328,620

2020

Candidate	Party	Votes	Share
Frederick B. Keller Won	REP	241,035	70.84%
Lee Griffin	DEM	99,199	29.16%
Total		340,234

Questions and answers

Who represents Pennsylvania's 12th congressional district?

Summer L. Lee (Democrat) is the current representative; the term ends on 2027-01-03.

Who won the last election in Pennsylvania's 12th congressional district?

Summer Lee won in 2024 by 12.8 points.

Results: FiveThirtyEight, from official sources.