| Representative |
Party |
Years |
District home |
Note |
| Henry King |
Jacksonian |
March 4, 1833 – March 3, 1835 |
Allentown |
Redistricted from 7th District, Not a candidate for renomination |
| Edward Burd Hubley |
Jacksonian |
March 4, 1835 – March 3, 1837 |
Reading |
Switched to the Democratic Party |
| Democratic |
March 4, 1837 – March 3, 1839 |
|
| Peter Newhard |
Democratic |
March 4, 1839 – March 3, 1843 |
Allentown |
Not a candidate for renomination |
| Jeremiah Brown |
Whig |
March 4, 1843 – March 3, 1845 |
Lancaster |
Redistricted from 4th District, Not a candidate for renomination |
| John Strohm |
Whig |
March 4, 1845 – March 3, 1849 |
Lancaster |
|
| Thaddeus Stevens |
Whig |
March 4, 1849 – March 3, 1853 |
York |
|
| Henry A. Muhlenberg |
Democratic |
March 4, 1853 – January 9, 1854 |
Reading |
Died |
| Vacant |
January 9, 1854 – February 4, 1854 |
| J. Glancy Jones |
Democratic |
February 4, 1854 – October 30, 1858 |
Reading |
appointed United States Minister to Austria |
| Vacant |
October 30, 1858 – December 7, 1858 |
| William H. Keim |
Republican |
December 7, 1858 – March 3, 1859 |
Reading |
|
| John Schwartz |
Anti-Lecompton Democrat |
March 4, 1859 – June 20, 1860 |
Reading |
Died |
| Vacant |
June 20, 1860 – December 3, 1860 |
| Jacob K. McKenty |
Democrat |
December 3, 1860 – March 3, 1861 |
|
Not a candidate for renomination |
| Sydenham E. Ancona |
Democrat |
March 4, 1861 – March 3, 1867 |
|
Unsuccessful candidate for renomination |
| James L. Getz |
Democrat |
March 4, 1867 – March 3, 1873 |
|
Not a candidate for renomination |
| Hiester Clymer |
Democrat |
March 4, 1873 – March 3, 1881 |
|
|
| Daniel Ermentrout |
Democrat |
March 4, 1881 – March 3, 1889 |
|
Unsuccessful candidate for renomination |
| William Mutchler |
Democrat |
March 4, 1889 – June 23, 1893 |
|
Died |
| Vacant |
June 23, 1893 – August 7, 1893 |
| Howard Mutchler |
Democrat |
August 7, 1893 – March 3, 1895 |
|
Not a candidate for renomination |
| Joseph J. Hart |
Democrat |
March 4, 1895 – March 3, 1897 |
|
Not a candidate for renomination |
| William S. Kirkpatrick |
Republican |
March 4, 1897 - March 3, 1899 |
|
Unsuccessful candidate for reelection |
| Laird H. Barber |
Democrat |
March 4, 1899 – March 3, 1901 |
|
Not a candidate for renomination |
| Howard Mutchler |
Democrat |
March 4, 1901 – March 3, 1903 |
|
Not a candidate for renomination |
| Irving P. Wanger |
Republican |
March 4, 1903 - March 3, 1911 |
|
Redistricted from 7th District, Unsuccessful candidate for reelection |
| Robert E. Difenderfer |
Democrat |
March 4, 1911 – March 3, 1915 |
|
Unsuccessful candidate for renomination |
| Henry W. Watson |
Republican |
March 4, 1915 - March 3, 1923 |
|
Redistricted to Pennsylvania's 9th congressional district |
| Thomas S. Butler |
Republican |
March 4, 1923 - May 26, 1928 |
|
Redistricted from 9th District, Died |
| Vacant |
May 26, 1928 – November 6, 1928 |
| James Wolfenden |
Republican |
November 6, 1928 - January 3, 1945 |
|
Redistricted to Pennsylvania's 7th congressional district |
| Charles L. Gerlach |
Republican |
January 3, 1945 - May 5, 1947 |
|
Redistricted from 9th District, Died |
| Vacant |
May 5, 1947 – September 9, 1947 |
| Franklin H. Lichtenwalter |
Republican |
September 9, 1947 - January 3, 1951 |
|
|
| Albert C. Vaughn |
Republican |
January 3, 1951 - September 1, 1951 |
|
Died |
| Vacant |
September 1, 1951 – November 6, 1951 |
| Karl C. King |
Republican |
November 6, 1951 – January 3, 1957 |
|
|
| Willard S. Curtin |
Republican |
January 3, 1957 – January 3, 1967 |
|
|
| Edward G. Biester, Jr. |
Republican |
January 3, 1967 – January 3, 1977 |
Furlong |
|
| Peter H. Kostmayer |
Democrat |
January 3, 1977 – January 3, 1981 |
New Hope |
|
| James K. Coyne, III |
Republican |
January 3, 1981 – January 3, 1983 |
Upper Makefield |
|
| Peter H. Kostmayer |
Democrat |
January 3, 1983 – January 3, 1993 |
New Hope |
|
| James C. Greenwood |
Republican |
January 3, 1993 - January 3, 2005 |
|
|
| Mike Fitzpatrick |
Republican |
January 3, 2005 – January 3, 2007 |
Levittown |
|
| Patrick Murphy |
Democrat |
January 3, 2007 – Present |
Bristol Township |
Incumbent |