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These are tables of congressional delegations from Illinois to the United States House of Representatives and the United States Senate.
Contents
Current Representatives
List of members of the Illinois United States House delegation, their terms in office, district boundaries, and the district political ratings according to the CPVI. The delegation has a total of 18 members, with 11 Democrats and 7 Republicans.
Delegation timeline (1812 – Present)
Tables showing membership in the Illinois federal House delegation throughout history of statehood in the United States.
1812 – 1818: 1 Territorial delegate
The Illinois Territory was established on March 1, 1809.
Part of the area of Illinois Territory became the State of Illinois on December 3, 1818.
1818 – 1833: 1 seat
From statehood in 1818, until the addition of two seats in 1833, Illinois had one Representative, elected at-large statewide.
1883 – 1895: 20, then 22 seats
Illinois gained one seat in 1881 and two more in 1891, but didn't redistrict until 1893.
1953 – present
Key
Senate delegation timeline (1817 – Present)
Tables showing membership in the Illinois federal Senate delegation throughout history of statehood in the United States.
Living former U.S. Senators from Illinois
As of January 2017, there are six former U.S. Senators from the U.S. State of Illinois who are currently living at this time, all from Class 3.