Since
Illinois
Illinois ( ) is a U.S. state, state in the Midwestern United States, Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolita ...
became a U.S. state in 1818, it has sent
congressional delegations to 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 ...
and
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 ...
. Each state elects two senators to serve for six years, and members of the House to two-year terms. Before becoming a state, the
Illinois Territory
The Territory of Illinois was an organized incorporated territory of the United States that existed from March 1, 1809, until December 3, 1818, when the southern portion of the territory was admitted to the Union as the State of Illinois. Its ...
elected a non-voting delegate at-large to Congress from 1812 to 1818.
These are tables of congressional delegations from Illinois to the United States Senate and the United States House of Representatives.
Current delegation
Illinois's current congressional delegation in the consists of its two senators, both of whom are
Democrats, and its 17 representatives: 14 Democrats and 3
Republicans.
The current dean of the Illinois delegation is Senator
Dick Durbin
Richard Joseph Durbin (born November 21, 1944) is an American lawyer and politician serving as the senior United States senator from Illinois, a seat he has held since 1997. A member of the Democratic Party, Durbin has served as the Senate Dem ...
, having served in the Senate since 1997 and in Congress since 1983.
United States Senate
United States House of Representatives
1812–1818: 1 non-voting delegate
Starting on December 3, 1812,
Illinois Territory
The Territory of Illinois was an organized incorporated territory of the United States that existed from March 1, 1809, until December 3, 1818, when the southern portion of the territory was admitted to the Union as the State of Illinois. Its ...
sent a non-voting delegate to the House.
Part of the area of
Illinois Territory
The Territory of Illinois was an organized incorporated territory of the United States that existed from March 1, 1809, until December 3, 1818, when the southern portion of the territory was admitted to the Union as the State of Illinois. Its ...
became the State of
Illinois
Illinois ( ) is a U.S. state, state in the Midwestern United States, Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolita ...
on December 3, 1818.
1818–1833: 1 seat
Following statehood on December 3, 1818, Illinois had one seat in the House.
1833–1843: 3 seats
Following the
1830 census, Illinois was apportioned three seats, all elected via
single member districts
A single-member district is an electoral district represented by a single officeholder. It contrasts with a multi-member district, which is represented by multiple officeholders. Single-member districts are also sometimes called single-winner vo ...
.
1843–1853: 7 seats
Following the
1840 census, Illinois was apportioned seven seats.
1853–1863: 9 seats
Following the
1850 census, Illinois was apportioned nine seats.
1863–1873: 14 seats
Following the
1860 census, Illinois was apportioned 14 seats, 13 of which were elected from
single member districts
A single-member district is an electoral district represented by a single officeholder. It contrasts with a multi-member district, which is represented by multiple officeholders. Single-member districts are also sometimes called single-winner vo ...
and 1 elected at-large statewide.
1873–1883: 19 seats
Following the
1870 census, Illinois was apportioned 19 seats, all elected via
single member districts
A single-member district is an electoral district represented by a single officeholder. It contrasts with a multi-member district, which is represented by multiple officeholders. Single-member districts are also sometimes called single-winner vo ...
.
1883–1895: 20 seats
Following the
1860 census, Illinois was apportioned 20 seats.
1893–1903: 22 seats
Following the
1890 census, Illinois was apportioned 22 seats. Until 1895, 20 seats were elected from
single member districts
A single-member district is an electoral district represented by a single officeholder. It contrasts with a multi-member district, which is represented by multiple officeholders. Single-member districts are also sometimes called single-winner vo ...
and 2 were elected at-large statewide. In 1895, Illinois redistricted all of its seats.
1903–1913: 25 seats
Following the
1900 census, Illinois was apportioned 25 seats.
1913–1943: 27 seats
Following the
1910 census, Illinois was apportioned 27 seats, 25 of which were elected from
single member districts
A single-member district is an electoral district represented by a single officeholder. It contrasts with a multi-member district, which is represented by multiple officeholders. Single-member districts are also sometimes called single-winner vo ...
and 2 were elected at-large statewide.
1943–1953: 26 seats
Following the
1940 census, Illinois was apportioned 26 seats. Until 1949, 25 seats were elected from
single member districts
A single-member district is an electoral district represented by a single officeholder. It contrasts with a multi-member district, which is represented by multiple officeholders. Single-member districts are also sometimes called single-winner vo ...
and 1 was elected at-large statewide. From 1949, all 26 seats were redistricted.
1953–1963: 25 seats
Following the
1950 census, Illinois was apportioned 25 seats, all of which were elected from single-member districts.
1963–1983: 24 seats
Following the
1960 census, Illinois was apportioned 24 seats.
1983–1993: 22 seats
Following the
1980 census, Illinois was apportioned 22 seats.
1993–2003: 20 seats
Following the
1990 census, Illinois was apportioned 20 seats.
2003–2013: 19 seats
Following the
2000 census, Illinois was apportioned 19 seats.
2013–2023: 18 seats
Following the
2010 census, Illinois was apportioned 18 seats.
From 2023-Present: 17 seats
Following the
2020 census, Illinois was apportioned 17 seats.
Key
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 in the House of Representatives is currently set at 435, wit ...
*
Illinois's congressional districts
*
Political party strength in Illinois
Notes
References
{{U.S. congressional delegations
Illinois
Illinois ( ) is a U.S. state, state in the Midwestern United States, Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolita ...
Politics of Illinois
Congressional delegations