These are tables of congressional delegations from

Pennsylvania Pennsylvania (; ( Pennsylvania Dutch: )), officially the Commonwealth of Pennsylvania, is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States. It borders Delaware to its southeast, ...

to the

United States House of Representatives The United States House of Representatives, often referred to as the House of Representatives, the U.S. House, or simply the House, is the Lower house, lower chamber of the United States Congress, with the United States Senate, Senate being ...

and the

United States Senate The United States Senate is the upper chamber of the United States Congress, with the House of Representatives being the lower chamber. Together they compose the national bicameral legislature of the United States. The composition and pow ...

. The current dean of the Pennsylvania delegation is

Representative Representative may refer to: Politics * Representative democracy, type of democracy in which elected officials represent a group of people * House of Representatives, legislative body in various countries or sub-national entities * Legislator, som ...

Mike Doyle Michael, Mick or Mike Doyle may refer to: Politics * Michael Doyle (Irish politician), Irish Farmers' Party politician from Wexford, TD from 1922 to 1927 *Michael Doyle, alleged member of the Molly Maguires *Mike Doyle (American politician) (born ...

(PA-18), having served in the House since 1995.

House of Representatives

Current members

List of members, their terms in office, district boundaries, and the district political ratings according to the

CPVI The Cook Partisan Voting Index, abbreviated Cook PVI, CPVI, or PVI, is a measurement of how strongly a List of United States congressional districts, United States congressional district or U.S. state leans toward the Democratic Party (United Sta ...

. The delegation has 18 members, with 9 Republicans and 9 Democrats.

1789–1793: 8 seats

For the first two Congresses, Pennsylvania had eight seats. In the First Congress, Representatives were selected at-large on a general ticket. Districts were used in the Second Congress.

1793–1803: 13 seats

Pennsylvania had thirteen seats. For the third Congress representatives were selected at-large on a general ticket. After that, districts were created.

1803–1813: 18 seats

There were eighteen seats, apportioned among eleven districts. Districts 1–3 each had three seats elected on a general ticket. District 4 had two such seats. Districts 5–11 each had one seat.

1813–1823: 23 seats

There were 15 districts. The 1st district had four seats elected on a general ticket. The 2nd, 3rd, 5th, 6th and 10th each had two seats elected on a general ticket. The rest of the districts each had one seat.

1823–1833: 26 seats

1833–1843: 28 seats

Following the 1830 census, Pennsylvania was apportioned 28 seats. The commonwealth divided them into 25 districts and two districts, the and the , had two and three seats respectively.

1843–1853: 24 seats

1853–1863: 25 seats

1863–1873: 24 seats

1873–1883: 27 seats

1883–1893: 28 seats

Following the 1880 census, the delegation grew by one seat. Until 1889, that seat was elected at-large statewide. After 1889, the state was redistricted into 28 districts.

1893–1903: 30 seats

Following the 1890 census, the delegation grew by two seats. Those two additional seats were elected at-large across the entire commonwealth.

1903–1913: 32 seats

Following the 1900 census, the delegation grew by two seats.

1913–1933: 36 seats

Following the 1910 census, the delegation grew by four seats to its largest size to date. The four new seats were elected at-large statewide. Starting in 1923, however, four new districts were added to replace the at-large seats.

1933–1943: 34 seats

Following the 1930 census, the delegation lost two seats.

1943–1953: 33 seats

Following the 1940 census, the delegation lost one seat. For the 78th Congress, there were 32 districts and 1 at-large seat. Starting with the 79th Congress, however, there were 33 districts.

1953–1963: 30 seats

Following the 1950 census, the delegation lost three seats.

1963–1973: 27 seats

Following the 1960 census, the delegation lost three seats.

1973–1983: 25 seats

Following the 1970 census, the delegation lost two seats.

1983–1993: 23 seats

Following the 1980 census, the delegation lost two seats.

1993–2003: 21 seats

Following the 1990 census, the delegation lost two seats.

2003–2013: 19 seats

Following the 2000 census, the delegation lost two seats.

2013–present: 18 seats

Following the 2010 census, the delegation lost one seat. With court-ordered

redistricting in Pennsylvania Redistricting in Pennsylvania refers to the decennial process of redrawing state legislative and federal congressional districts in Pennsylvania. United States congressional redistricting 2001–2011 Before the 2000 election, the Pennsylva ...

on February 19, 2018, none of the members of congress who served in 115th Congress and were re-elected are in the same district in the 116th Congress.