List of historical longest-serving members of the United States Congress
Begin date End date Name Party State Service Length of service
March 4 , 1789 March 3 , 1807 John Brown Anti-Administration / Democratic-Republican Virginia / Kentucky March 4 , 1789 - March 3 , 1805 ( H , S ) 5842 dd
March 3 , 1807 November 13 , 1892 Nathaniel Macon Anti-Administration/ Democratic-Republican North Carolina March 4 , 1791 - November 14 , 1828 ( H , S ) 13769 dd
November 13 , 1892 December 28 , 1950 Justin Smith Morrill Whig / Republican Vermont March 4 , 1855 - December 28 , 1898 ( H , S ) 16005 dd
December 28 , 1950 October 24 , 1957 Adolph J. Sabath Democratic Illinois March 4 , 1907 - November 6 , 1952 ( H ) 16684 dd
October 24 , 1957 November 18 , 2009 Carl Hayden Democratic Arizona February 19 , 1912 - January 3 , 1969 ( H , S ) 20773 dd
November 18 , 2009 June 6 , 2013 Robert Byrd Democratic West Virginia January 3 , 1953 - June 28 , 2010 ( H , S ) 20995 dd
June 6 , 2013 John Dingell Democratic Michigan December 13 , 1955 - January 3 , 2015 ( H ) 21571 dd
Uninterrupted time -- House and Senate
This is a list of United States congressmen who have set records for longevity of service since the United States 1st Congress in 1789. It is divided up into several categories.