Pennsylvania's 12th Congressional District
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Pennsylvania's 12th congressional district is located in southwestern
Pennsylvania Pennsylvania, officially the Commonwealth of Pennsylvania, is a U.S. state, state spanning the Mid-Atlantic (United States), Mid-Atlantic, Northeastern United States, Northeastern, Appalachian, and Great Lakes region, Great Lakes regions o ...
, including Pittsburgh and much of Allegheny County, as well as some of Westmoreland County. Since January 3, 2023, it has been represented by Summer Lee. Before 2018, the 12th district was located in southwestern Pennsylvania and included all of Beaver County, and parts of Allegheny,
Cambria Cambria is a name for Wales, being the Latinised form of the Welsh name for the country, . The term was not in use during the Roman period (when Wales had not come into existence as a distinct entity) or the early medieval period. After the ...
, Lawrence,
Somerset Somerset ( , ), Archaism, archaically Somersetshire ( , , ) is a Ceremonial counties of England, ceremonial county in South West England. It is bordered by the Bristol Channel, Gloucestershire, and Bristol to the north, Wiltshire to the east ...
, and Westmoreland Counties. The
Supreme Court of Pennsylvania The Supreme Court of Pennsylvania is the highest court in the Commonwealth (U.S. state), Commonwealth of Pennsylvania's Judiciary of Pennsylvania, Unified Judicial System. It began in 1684 as the Provincial Court, and casual references to it as ...
redrew this and other state congressional districts in February 2018 after ruling the previous map unconstitutional due to partisan
gerrymandering Gerrymandering, ( , originally ) defined in the contexts of Representative democracy, representative electoral systems, is the political manipulation of Boundary delimitation, electoral district boundaries to advantage a Political party, pa ...
. The new 12th district covers much of the old 10th district. The old 12th district was redrawn to an area north and west of
Pittsburgh Pittsburgh ( ) is a city in Allegheny County, Pennsylvania, United States, and its county seat. It is the List of municipalities in Pennsylvania#Municipalities, second-most populous city in Pennsylvania (after Philadelphia) and the List of Un ...
and renamed the 17th district for the 2018 elections and representation after that. Before the 2011 round of redistricting, the 12th district was widely considered to be
gerrymandered Gerrymandering, ( , originally ) defined in the contexts of representative electoral systems, is the political manipulation of electoral district boundaries to advantage a party, group, or socioeconomic class within the constituency. Th ...
by the Republican-controlled state legislature as a heavily Democratic district. It consisted of all of Greene County, and parts of Allegheny, Armstrong,
Cambria Cambria is a name for Wales, being the Latinised form of the Welsh name for the country, . The term was not in use during the Roman period (when Wales had not come into existence as a distinct entity) or the early medieval period. After the ...
, Fayette,
Indiana Indiana ( ) is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders Lake Michigan to the northwest, Michigan to the north and northeast, Ohio to the east, the Ohio River and Kentucky to the s ...
,
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,
Washington Washington most commonly refers to: * George Washington (1732–1799), the first president of the United States * Washington (state), a state in the Pacific Northwest of the United States * Washington, D.C., the capital of the United States ** A ...
, and Westmoreland Counties.


Recent election results from statewide races


History

After the 2000 census, the Republican-controlled state legislature radically altered the 12th to get more Republicans elected from traditionally heavily Democratic southwestern Pennsylvania. A large chunk of the old 20th district was incorporated into the 12th. In some parts of the western portion of the district, one side of the street is in the 12th, while the other is in the 18th district (the reconfigured 20th). This led to criticism that the 12th was a
gerrymander Gerrymandering, ( , originally ) defined in the contexts of Representative democracy, representative electoral systems, is the political manipulation of Boundary delimitation, electoral district boundaries to advantage a Political party, pa ...
intended to pack as many of southwestern Pennsylvania's heavily Democratic areas as possible into just two districts—the 12th and the Pittsburgh-based . Located in southwestern Pennsylvania, the 12th district consisted of all of Greene County, and parts of Allegheny, Armstrong,
Cambria Cambria is a name for Wales, being the Latinised form of the Welsh name for the country, . The term was not in use during the Roman period (when Wales had not come into existence as a distinct entity) or the early medieval period. After the ...
, Fayette,
Indiana Indiana ( ) is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders Lake Michigan to the northwest, Michigan to the north and northeast, Ohio to the east, the Ohio River and Kentucky to the s ...
,
Somerset Somerset ( , ), Archaism, archaically Somersetshire ( , , ) is a Ceremonial counties of England, ceremonial county in South West England. It is bordered by the Bristol Channel, Gloucestershire, and Bristol to the north, Wiltshire to the east ...
,
Washington Washington most commonly refers to: * George Washington (1732–1799), the first president of the United States * Washington (state), a state in the Pacific Northwest of the United States * Washington, D.C., the capital of the United States ** A ...
, and Westmoreland Counties. A thoroughly unionized district, the 12th was historically among the most Democratic areas of the state. However, the Democrats in this area were not as liberal as their counterparts in
Philadelphia Philadelphia ( ), colloquially referred to as Philly, is the List of municipalities in Pennsylvania, most populous city in the U.S. state of Pennsylvania and the List of United States cities by population, sixth-most populous city in the Unit ...
and
Pittsburgh Pittsburgh ( ) is a city in Allegheny County, Pennsylvania, United States, and its county seat. It is the List of municipalities in Pennsylvania#Municipalities, second-most populous city in Pennsylvania (after Philadelphia) and the List of Un ...
. Most were somewhat conservative on social issues, particularly abortion and gun control. The 12th included all of Greene County, a highly rural region that still has a traditionally Democratic influence due to its labor leanings. In Washington county, the city of
Washington Washington most commonly refers to: * George Washington (1732–1799), the first president of the United States * Washington (state), a state in the Pacific Northwest of the United States * Washington, D.C., the capital of the United States ** A ...
and eastern portions of the county, a large and Democratic edge suburb of Pittsburgh, was a part of the 12th. Most of the Monongahela Valley region, a very Democratic area once an important steel-making area, was also part of the 12th. However, more rural western Washington County and the suburban northern portion of the county (with towns like McDonald and Canonsburg) then belonged to the 18th. The western portion of Fayette County, including the city of Uniontown, a labor Democratic stronghold, was part of this district. In contrast, the rural mountainous eastern portion was a part of the 9th. The 12th district continued eastward, including southeastern and northeastern parts of Westmoreland County, including the labor Democratic city of Latrobe, while leaving the suburban western part of the county (with towns such as Murrysville) and the generally left-leaning city of Greensburg in the 18th. The major population base of the district was located just to the east, taking in most of Somerset and Cambria counties. This area, the heart of a sizeable coal-mining region, includes the district's largest city, Johnstown. The 12th also contained a part of Indiana County, mainly the college town of
Indiana Indiana ( ) is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders Lake Michigan to the northwest, Michigan to the north and northeast, Ohio to the east, the Ohio River and Kentucky to the s ...
. The 12th completed its wrap around the metro Pittsburgh region by ending in the northeastern corner of the city's suburbs, containing middle-class regions such as Lower Burrell and the working-class suburb of
New Kensington New Kensington (known locally as New Ken) is a city in Westmoreland County, Pennsylvania, United States. The population was 12,170 at the 2020 census. It is situated along the Allegheny River northeast of Pittsburgh and is part of the Pittsb ...
. A portion of Armstrong County was also included in the district, including several industrial suburbs such as
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and
Apollo Apollo is one of the Twelve Olympians, Olympian deities in Ancient Greek religion, ancient Greek and Ancient Roman religion, Roman religion and Greek mythology, Greek and Roman mythology. Apollo has been recognized as a god of archery, mu ...
. The district is notable as the only congressional district in the nation that voted for Democratic presidential candidate
John Kerry John Forbes Kerry (born December 11, 1943) is an American attorney, politician, and diplomat who served as the 68th United States secretary of state from 2013 to 2017 in the Presidency of Barack Obama#Administration, administration of Barac ...
in
2004 2004 was designated as an International Year of Rice by the United Nations, and the International Year to Commemorate the Struggle Against Slavery and Its Abolition (by UNESCO). Events January * January 3 – Flash Airlines Flight 60 ...
but went for Republican
John McCain John Sidney McCain III (August 29, 1936 – August 25, 2018) was an American statesman and United States Navy, naval officer who represented the Arizona, state of Arizona in United States Congress, Congress for over 35 years, first as ...
in
2008 2008 was designated as: *International Year of Languages *International Year of Planet Earth *International Year of the Potato *International Year of Sanitation The Great Recession, a worldwide recession which began in 2007, continued throu ...
. This is mainly because, since 2000, southwestern Pennsylvania has gradually become more Republican.


2006 election

In the 2006 election, Murtha was re-elected with 61% of the vote. His Republican opponent, Washington County Commissioner Diana Irey, received 39%.


2008 election

John Murtha won the 2008 election with 58% of the vote. Murtha was a
United States Marine The United States Marine Corps (USMC), also referred to as the United States Marines or simply the Marines, is the maritime land force service branch of the United States Department of Defense. It is responsible for conducting expeditionary ...
and the first Vietnam War veteran to serve in Congress. He defeated Lt. Col. William T. Russell, an army veteran.


2010 special election

Pennsylvania
governor A governor is an politician, administrative leader and head of a polity or Region#Political regions, political region, in some cases, such as governor-general, governors-general, as the head of a state's official representative. Depending on the ...
Ed Rendell Edward Gene Rendell (; born January 5, 1944) is an American politician, author, and former prosecutor who served as the 45th governor of Pennsylvania from 2003 to 2011. He previously served as chair of the national Democratic Party from 1999 to 2 ...
scheduled a
special election A by-election, also known as a special election in the United States and the Philippines, or a bypoll in India, is an election used to fill an office that has become vacant between general elections. A vacancy may arise as a result of an incumben ...
for May 18, 2010, following the death of Representative John Murtha. On March 8, 2010, the
Pennsylvania Democratic Party The Pennsylvania Democratic Party is the affiliate of the Democratic Party in the U.S. state of Pennsylvania. It is headquartered in Harrisburg and is the largest political party in the state. Its chair is Senator Sharif Street. As of 2025, i ...
's Executive Committee nominated
Mark Critz Mark Stephen Critz (born January 5, 1962) is an American politician and former U.S. Representative for , having served from a special election in May 2010 until January 2013. He is a member of the Democratic Party. The district during his tenur ...
, Murtha's former district director. On March 11, a convention of Republicans from the 12th district nominated businessman Tim Burns. The Libertarian Party's candidate was Demo Agoris, who ran for the Pennsylvania House of Representatives in the 48th district as a Libertarian in 2006. Mark Critz won the election.


2010 election

Mark Critz was re-elected in the regularly scheduled 2010 election, again beating Republican Tim Burns (this time with 51% of the vote against 49%).


2012 election

Mark Critz ran for re-election to a second full term in the 2012 election but was defeated by Republican challenger
Keith Rothfus Keith James Rothfus (born April 25, 1962) is an American lawyer and politician who served as the U.S. representative for Pennsylvania's 12th congressional district from 2013 to 2019. He succeeded Democratic Representative Mark Critz, whom he ...
. Critz garnered 48.5% of the vote to Rothfus' 51.5%. The 12th had absorbed a large chunk of the old 4th district, including Rothfus' home, after the 2010 census, and was significantly more Republican than its predecessor.


2019 special election

After
Tom Marino Thomas Anthony Marino (born August 13, 1952) is an American politician and attorney, who served as a United States House of Representatives, United States Representative from Pennsylvania from 2011 to 2019. He represented the from January 3, 20 ...
's resignation in January 2019, an election was held on May 21 to fill the open seat. Republican Fred Keller defeated 2018 Democratic nominee Mark Friedenberg.


Counties and municipalities

Allegheny County (46) :
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, Bethel Park, Braddock, Brentwood, Bridgeville, Chalfant, Clairton, Dravosburg,
Duquesne __NOTOC__ Duquesne or Duchesne ( , ; old spelling Du Quesne, American spelling DuQuesne) is a family name derived from a northern dialectal form of French (Norman and Picard) meaning ''du chêne'' in French ("of the oak"). The anglicization of t ...
, East McKeesport, East Pittsburgh, Elizabeth Borough, Elizabeth Township, Forward Township, Glassport,
Homestead Homestead may refer to: *Homestead (building), a farmhouse and its adjacent outbuildings; by extension, it can mean any small cluster of houses * Nguni homestead, a cluster of houses inhabited by a single extended family, typically with a kraal ...
, Jefferson Hills,
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,
Lincoln Lincoln most commonly refers to: * Abraham Lincoln (1809–1865), the 16th president of the United States * Lincoln, England, cathedral city and county town of Lincolnshire, England * Lincoln, Nebraska, the capital of Nebraska, U.S. * Lincoln (na ...
,
McKeesport McKeesport is a city in Allegheny County, Pennsylvania, United States. A suburb of Pittsburgh, it is situated at the confluence of the Monongahela River, Monongahela and Youghiogheny River, Youghiogheny rivers. The population was 17,727 as of the ...
, Monroeville, Mount Oliver, Munhall, North Braddock, North Versailles Township,
Pitcairn The Pitcairn Islands ( ; Pitkern: '), officially Pitcairn, Henderson, Ducie and Oeno Islands, are a group of four volcanic islands in the southern Pacific Ocean that form the sole British Overseas Territory in the Pacific Ocean. The four islan ...
,
Pittsburgh Pittsburgh ( ) is a city in Allegheny County, Pennsylvania, United States, and its county seat. It is the List of municipalities in Pennsylvania#Municipalities, second-most populous city in Pennsylvania (after Philadelphia) and the List of Un ...
, Pleasant Hills,
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, Port Vue, Rankin, South Park Township, South Versailles Township,
Swissvale Swissvale is a borough in Allegheny County, Pennsylvania, United States, east of downtown Pittsburgh. Named for a farmstead owned by James Swisshelm, during the industrial age it was the site of the Union Switch and Signal Company of George We ...
(part; also 17th),
Trafford Trafford is a metropolitan borough of Greater Manchester, England, with an estimated population of in . It covers and includes the area of Old Trafford (area), Old Trafford and the towns of Altrincham, Stretford, Urmston, Partington and Sa ...
(shared with Westmoreland County) Turtle Creek, Upper St. Clair Township,
Versailles The Palace of Versailles ( ; ) is a former royal residence commissioned by King Louis XIV located in Versailles, Yvelines, Versailles, about west of Paris, in the Yvelines, Yvelines Department of Île-de-France, Île-de-France region in Franc ...
,
Wall A wall is a structure and a surface that defines an area; carries a load; provides security, shelter, or soundproofing; or serves a decorative purpose. There are various types of walls, including border barriers between countries, brick wal ...
, West Elizabeth,
West Homestead West Homestead is a borough in Allegheny County, Pennsylvania, United States, southeast of Pittsburgh, on the Monongahela River. Heavy industries associated with nearby steel mills existed here, such as axle works, brickworks, and manufactories ...
,
West Mifflin West Mifflin is a Borough (Pennsylvania), borough in Allegheny County, Pennsylvania, United States, located southeast of downtown Pittsburgh. The population was 19,589 at the 2020 United States census, 2020 census. It is named after Thomas Miff ...
, Whitaker,
Whitehall Whitehall is a road and area in the City of Westminster, Central London, England. The road forms the first part of the A roads in Zone 3 of the Great Britain numbering scheme, A3212 road from Trafalgar Square to Chelsea, London, Chelsea. It ...
,
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,
Wilkins Township Wilkins Township is a Township (Pennsylvania), township in Allegheny County, Pennsylvania, Allegheny County, Pennsylvania, United States. The population was 6,357 at the 2010 United States census, 2010 census. It is served by Pennsylvania's 12th ...
,
Wilmerding Wilmerding is a borough in Allegheny County, Pennsylvania, United States. The population was 1,781 at the 2020 census. It is located southeast of Pittsburgh. At the start of the twentieth century, it had extensive foundries and machine shops o ...
; Westmoreland County (17) : Adamsburg, Arona,
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, Hempfield Township (part; also 14th),
Irwin Irwin may refer to: Places ;United States * Irwin, California * Irwin, Idaho * Irwin, Illinois * Irwin, Iowa * Irwin, Nebraska * Irwin, Ohio * Irwin, Pennsylvania * Irwin, South Carolina * Irwin County, Georgia * Irwin Township, Venango Co ...
, Jeannette, Madison, Manor, Murrysville, North Huntingdon Township, North Irwin, Penn Borough, Penn Township, Sewickley Township, South Huntingdon Township (part; also 14th), Sutersville,
Trafford Trafford is a metropolitan borough of Greater Manchester, England, with an estimated population of in . It covers and includes the area of Old Trafford (area), Old Trafford and the towns of Altrincham, Stretford, Urmston, Partington and Sa ...
(shared with Allegheny County)


List of members representing the district


Recent election results


2012


2014


2016


2018


2019 special election


2020


2022


2024


See also

*
List of United States congressional districts Congressional districts in the United States are electoral divisions for the purpose of electing members of the United States House of Representatives. The number of voting seats within the House of Representatives is currently set at 435, wi ...
* Pennsylvania's congressional districts


References


Further reading

* *
Congressional Biographical Directory of the United States 1774–present



External links


Congressional redistricting in Pennsylvania
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