Since Illinois became a U.S. state in 1818, it has sent congressional delegations to the United States Senate and United States House of Representatives. 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 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 U.S. senators from Illinois | |||
|---|---|---|---|
| Class II senator | Class III senator | ||
Dick Durbin | Tammy Duckworth | ||
| Party | |||
| Incumbent since | January 3, 1997 | January 3, 2017 | |
The current dean of the Illinois delegation is Senator Dick Durbin, having served in the Senate since 1997 and in Congress since 1983.
See main article: List of United States senators from Illinois.
| Class II senator | Congress | Class III senator | ||||
|---|---|---|---|---|---|---|
| rowspan=5 | Jesse B. Thomas (DR) | 15th (1817–1819) | rowspan=4 | Ninian Edwards (DR) | ||
| 16th (1819–1821) | ||||||
| 17th (1821–1823) | ||||||
| 18th (1823–1825) | ||||||
| John McLean (DR) | ||||||
| rowspan=2 | Jesse B. Thomas (NR) | 19th (1825–1827) | rowspan=8 | Elias Kane (J) | ||
| 20th (1827–1829) | ||||||
| John McLean (J) | 21st (1829–1831) | |||||
| David J. Baker (J) | ||||||
| rowspan=5 | John M. Robinson (J) | |||||
| 22nd (1831–1833) | ||||||
| 23rd (1833–1835) | ||||||
| 24th (1835–1837) | ||||||
| William Lee D. Ewing (J) | ||||||
| rowspan=2 | John M. Robinson (D) | 25th (1837–1839) | rowspan=3 | Richard M. Young (D) | ||
| 26th (1839–1841) | ||||||
| rowspan=2 | Samuel McRoberts (D) | 27th (1841–1843) | ||||
| 28th (1843–1845) | rowspan=4 | Sidney Breese (D) | ||||
| rowspan=2 | James Semple (D) | |||||
| 29th (1845–1847) | ||||||
| rowspan=8 | Stephen A. Douglas (D) | 30th (1847–1849) | ||||
| 31st (1849–1851) | rowspan=3 | James Shields (D) | ||||
| 32nd (1851–1853) | ||||||
| 33rd (1853–1855) | ||||||
| 34th (1855–1857) | Lyman Trumbull (D) | |||||
| 35th (1857–1859) | Lyman Trumbull (R) | |||||
| 36th (1859–1861) | ||||||
| 37th (1861–1863) | ||||||
| Orville Browning (R) | ||||||
| rowspan=2 | William A. Richardson (D) | |||||
| 38th (1863–1865) | ||||||
| rowspan=3 | Richard Yates (R) | 39th (1865–1867) | ||||
| 40th (1867–1869) | ||||||
| 41st (1869–1871) | ||||||
| rowspan=3 | John A. Logan (R) | 42nd (1871–1873) | Lyman Trumbull (LR) | |||
| 43rd (1873–1875) | rowspan=3 | Richard J. Oglesby (R) | ||||
| 44th (1875–1877) | ||||||
| rowspan=3 | David Davis (I) | 45th (1877–1879) | ||||
| 46th (1879–1881) | rowspan=4 | John A. Logan (R) | ||||
| 47th (1881–1883) | ||||||
| rowspan=16 | Shelby M. Cullom (R) | 48th (1883–1885) | ||||
| 49th (1885–1887) | ||||||
| rowspan=3 | Charles B. Farwell (R) | |||||
| 50th (1887–1889) | ||||||
| 51st (1889–1891) | ||||||
| 52nd (1891–1893) | rowspan=3 | John M. Palmer (D) | ||||
| 53rd (1893–1895) | ||||||
| 54th (1895–1897) | ||||||
| 55th (1897–1899) | rowspan=3 | William E. Mason (R) | ||||
| 56th (1899–1901) | ||||||
| 57th (1901–1903) | ||||||
| 58th (1903–1905) | rowspan=3 | Albert J. Hopkins (R) | ||||
| 59th (1905–1907) | ||||||
| 60th (1907–1909) | ||||||
| 61st (1909–1911) | rowspan=2 | William Lorimer (R) | ||||
| 62nd (1911–1913) | ||||||
| rowspan=3 | J. Hamilton Lewis (D) | 63rd (1913–1915) | rowspan=4 | Lawrence Y. Sherman (R) | ||
| 64th (1915–1917) | ||||||
| 65th (1917–1919) | ||||||
| rowspan=3 | Medill McCormick (R) | 66th (1919–1921) | ||||
| 67th (1921–1923) | rowspan=4 | William B. McKinley (R) | ||||
| 68th (1923–1925) | ||||||
| rowspan=6 | Charles S. Deneen (R) | |||||
| 69th (1925–1927) | ||||||
| rowspan=2 | Frank L. Smith (R) | |||||
| 70th (1927–1929) | ||||||
| rowspan=3 | Otis F. Glenn (R) | |||||
| 71st (1929–1931) | ||||||
| rowspan=5 | J. Hamilton Lewis (D) | 72nd (1931–1933) | ||||
| 73rd (1933–1935) | rowspan=3 | William H. Dieterich (D) | ||||
| 74th (1935–1937) | ||||||
| 75th (1937–1939) | ||||||
| 76th (1939–1941) | rowspan=8 | Scott W. Lucas (D) | ||||
| James M. Slattery (D) | ||||||
| rowspan=5 | C. Wayland Brooks (R) | |||||
| 77th (1941–1943) | ||||||
| 78th (1943–1945) | ||||||
| 79th (1945–1947) | ||||||
| 80th (1947–1949) | ||||||
| rowspan=9 | Paul Douglas (D) | 81st (1949–1951) | ||||
| 82nd (1951–1953) | rowspan=10 | Everett Dirksen (R) | ||||
| 83rd (1953–1955) | ||||||
| 84th (1955–1957) | ||||||
| 85th (1957–1959) | ||||||
| 86th (1959–1961) | ||||||
| 87th (1961–1963) | ||||||
| 88th (1963–1965) | ||||||
| 89th (1965–1967) | ||||||
| rowspan=11 | Charles H. Percy (R) | 90th (1967–1969) | ||||
| 91st (1969–1971) | ||||||
| Ralph Tyler Smith (R) | ||||||
| rowspan=6 | Adlai Stevenson III (D) | |||||
| 92nd (1971–1973) | ||||||
| 93rd (1973–1975) | ||||||
| 94th (1975–1977) | ||||||
| 95th (1977–1979) | ||||||
| 96th (1979–1981) | ||||||
| 97th (1981–1983) | rowspan=6 | Alan J. Dixon (D) | ||||
| 98th (1983–1985) | ||||||
| rowspan=6 | Paul Simon (D) | 99th (1985–1987) | ||||
| 100th (1987–1989) | ||||||
| 101st (1989–1991) | ||||||
| 102nd (1991–1993) | ||||||
| 103rd (1993–1995) | rowspan=3 | Carol Moseley Braun (D) | ||||
| 104th (1995–1997) | ||||||
| Dick Durbin (D) | 105th (1997–1999) | |||||
| 106th (1999–2001) | rowspan=3 | Peter Fitzgerald (R) | ||||
| 107th (2001–2003) | ||||||
| 108th (2003–2005) | ||||||
| 109th (2005–2007) | rowspan=2 | Barack Obama (D) | ||||
| 110th (2007–2009) | ||||||
| 111th (2009–2011) | Roland Burris (D) | |||||
| Mark Kirk (R) | ||||||
| 112th (2011–2013) | ||||||
| 113th (2013–2015) | ||||||
| 114th (2015–2017) | ||||||
| 115th (2017–2019) | Tammy Duckworth (D) | |||||
| 116th (2019–2021) | ||||||
| 117th (2021–2023) | ||||||
| 118th (2023–2025) | ||||||
See main article: List of United States representatives from Illinois.
Starting on December 3, 1812, Illinois Territory sent a non-voting delegate to the House.
| Years | Delegate from | ||
|---|---|---|---|
| December 3, 1812 – August 2, 1813 | Shadrach Bond (DR) | ||
| November 14, 1814 – March 3, 1817 | Benjamin Stephenson (DR) | ||
| March 4, 1817 – November 30, 1818 | Nathaniel Pope (DR) |
Part of the area of Illinois Territory became the State of Illinois on December 3, 1818.
Following statehood on December 3, 1818, Illinois had one seat in the House.
| Congress | ||
|---|---|---|
| 15th (1818–1819) | John McLean (DR) | |
| 16th (1819–1821) | Daniel Pope Cook (DR) | |
| 17th (1821–1823) | ||
| 18th (1823–1825) | ||
| 19th (1825–1827) | Daniel Pope Cook (NR) | |
| 20th (1827–1829) | Joseph Duncan (J) | |
| 21st (1829–1831) | ||
| 22nd (1831–1833) |
Following the 1830 census, Illinois was apportioned three seats, all elected via single-member districts.
| Congress | |||||
|---|---|---|---|---|---|
| 23rd (1833–1835) | Charles Slade (J) | Zadok Casey (J) | Joseph Duncan (J) | ||
| John Reynolds (J) | William L. May (J) | ||||
| 24th (1835–1837) | |||||
| 25th (1837–1839) | Adam W. Snyder (D) | Zadok Casey (D) | William L. May (D) | ||
| 26th (1839–1841) | John Reynolds (D) | John T. Stuart (W) | |||
| 27th (1841–1843) | Zadok Casey (ID) |
Following the 1840 census, Illinois was apportioned seven seats.
| Congress | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 28th (1843–1845) | Robert Smith (D) | John A. McClernand (D) | Orlando B. Ficklin (D) | John Wentworth (D) | Stephen A. Douglas (D) | Joseph P. Hoge (D) | John J. Hardin (W) | ||||
| 29th (1845–1847) | Edward D. Baker (W) | ||||||||||
| John Henry (W) | |||||||||||
| 30th (1847–1849) | Robert Smith (ID) | William Alexander Richardson (D) | Thomas J. Turner (D) | Abraham Lincoln (W) | |||||||
| 31st (1849–1851) | William Henry Bissell (D) | Timothy R. Young (D) | Edward D. Baker (W) | Thomas L. Harris (D) | |||||||
| 32nd (1851–1853) | Willis Allen (D) | Orlando B. Ficklin (D) | Richard S. Molony (D) | Thompson Campbell (D) | Richard Yates (W) |
Following the 1850 census, Illinois was apportioned nine seats.
| Congress | District | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 33rd | Elihu Washburne (W) | John Wentworth (D) | Jesse O. Norton (W) | James Knox (W) | William Alexander Richardson (D) | Richard Yates (W) | James C. Allen (D) | William H. Bissell (ID) | Willis Allen (D) | |||||||
| 34th | Elihu Washburne (R) | James H. Woodworth (R) | Jesse O. Norton (O) | James Knox (O) | Thomas L. Harris (D) | James L. D. Morrison (D) | Samuel S. Marshall (D) | |||||||||
| Jacob C. Davis (D) | ||||||||||||||||
| 35th | John F. Farnsworth (R) | Owen Lovejoy (R) | William Kellogg (R) | Isaac N. Morris (D) | Aaron Shaw (D) | Robert Smith (D) | ||||||||||
| Charles D. Hodges (D) | ||||||||||||||||
| 36th | John A. McClernand (D) | James Carroll Robinson (D) | Philip B. Fouke (D) | John A. Logan (D) | ||||||||||||
| 37th | Isaac N. Arnold (R) | William Alexander Richardson (D) | ||||||||||||||
| Anthony L. Knapp (D) | William J. Allen (D) | |||||||||||||||
Following the 1860 census, Illinois was apportioned 14 seats, 13 of which were elected from single member districts and 1 elected at-large statewide.
| Congress | District | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 38th | Isaac N. Arnold (R) | John F. Farnsworth (R) | Elihu B. Washburne (R) | Charles M. Harris (D) | Owen Lovejoy (R) | Jesse O. Norton (R) | John R. Eden (D) | John T. Stuart (D) | Lewis W. Ross (D) | Anthony L. Knapp (D) | James Carroll Robinson (D) | William Ralls Morrison (D) | William J. Allen (D) | James C. Allen (D) | |
| Ebon C. Ingersoll (R) | |||||||||||||||
| 39th | John Wentworth (R) | Abner C. Harding (R) | Burton C. Cook (R) | Henry P. H. Bromwell (R) | Shelby M. Cullom (R) | Anthony Thornton (D) | Samuel S. Marshall (D) | Jehu Baker (R) | Andrew J. Kuykendall (R) | Samuel W. Moulton (R) | |||||
| 40th | Norman B. Judd (R) | Albert G. Burr (D) | Green B. Raum (R) | John A. Logan (R) | |||||||||||
| 41st | Horatio C. Burchard (R) | John B. Hawley (R) | Jesse H. Moore (R) | Thompson W. McNeely (D) | John B. Hay (R) | John M. Crebs (D) | |||||||||
| 42nd | Charles B. Farwell (R) | Bradford N. Stevens (D) | Henry Snapp (R) | James Carroll Robinson (D) | Edward Y. Rice (D) | John Lourie Beveridge (R) | |||||||||
Following the 1870 census, Illinois was apportioned 19 seats, all elected via single member districts.
Following the 1860 census, Illinois was apportioned 20 seats.
Following the 1890 census, Illinois was apportioned 22 seats. Until 1895, 20 seats were elected from single member districts and 2 were elected at-large statewide. In 1895, Illinois redistricted all of its seats.
Following the 1900 census, Illinois was apportioned 25 seats.
| Congress | |
|---|---|
(1903–1905) | |
(1905–1907) | |
(1907–1909) | |
(1909–1911) | |
(1911–1913) |
Following the 1910 census, Illinois was apportioned 27 seats, 25 of which were elected from single member districts and 2 were elected at-large statewide.
| Congress | |
|---|---|
(1913–1915) | |
(1915–1917) | |
(1917–1919) | |
(1919–1921) | |
(1921–1923) | |
(1923–1925) | |
(1925–1927) | |
(1927–1929) | |
(1929–1931) | |
(1931–1933) | |
(1933–1935) | |
(1935–1937) | |
(1937–1939) | |
(1939–1941) | |
(1941–1943) | |
| Congress |
Following the 1940 census, Illinois was apportioned 26 seats. Until 1949, 25 seats were elected from single member districts and 1 was elected at-large statewide. From 1949, all 26 seats were redistricted.
| Congress | |
|---|---|
(1943–1945) | |
(1945–1947) | |
(1947–1949) | |
(1949–1951) | |
(1951–1953) |
Following the 1950 census, Illinois was apportioned 25 seats, all of which were elected from single-member districts.
| Congress | |
|---|---|
(1953–1955) | |
(1955–1957) | |
(1957–1959) | |
(1959–1961) | |
(1961–1963) |
| District | District | District | Congress | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| William L. Dawson (D) | Barratt O'Hara (D) | Fred E. Busbey (R) | William E. McVey (R) | John C. Kluczynski (D) | Thomas J. O'Brien (D) | James Bowler (D) | Thomas S. Gordon (D) | Sidney R. Yates (D) | Richard W. Hoffman (R) | Timothy P. Sheehan (R) | Edgar A. Jonas (R) | Marguerite Church (R) | Chauncey W. Reed (R) | Noah M. Mason (R) | Leo E. Allen (R) | Leslie C. Arends (R) | Harold H. Velde (R) | Robert B. Chiperfield (R) | Sid Simpson (R) | Peter F. Mack Jr. (D) | William L. Springer (R) | Charles W. Vursell (R) | Melvin Price (D) | C. W. Bishop (R) | 83rd (1953–1955) | |||
| James C. Murray (D) | Charles A. Boyle (D) | Ken Gray (D) | 84th (1955–1957) | |||||||||||||||||||||||||
| Emmet Byrne (R) | Harold R. Collier (R) | Russell W. Keeney (R) | Bob Michel (R) | 85th (1957–1959) | ||||||||||||||||||||||||
| William T. Murphy (D) | Ed Derwinski (R) | Roland V. Libonati (D) | Dan Rosten- kowski (D) | Roman Pucinski (D) | Elmer J. Hoffman (R) | Edna O. Simpson (R) | George E. Shipley (D) | 86th (1959–1961) | ||||||||||||||||||||
| Edward R. Finnegan (D) | John B. Anderson (R) | Paul Findley (R) | 87th (1961–1963) | |||||||||||||||||||||||||
Following the 1960 census, Illinois was apportioned 24 seats.
| Congress | |
|---|---|
(1963–1965) | |
(1965–1967) | |
(1967–1969) | |
(1969–1971) | |
(1971–1973) | |
(1973–1975) | |
(1975–1977) | |
(1977–1979) | |
(1979–1981) | |
(1981–1983) |
Following the 1980 census, Illinois was apportioned 22 seats.
| Congress | District | ||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 98th (1983–1985) | Harold Washington (D) | Gus Savage (D) | Marty Russo (D) | George M. O'Brien (R) | Bill Lipinski (D) | Henry Hyde (R) | Cardiss Collins (D) | Dan Rostenkowski (D) | Sidney Yates (D) | John Porter (R) | Frank Annunzio (D) | Phil Crane (R) | John Erlenborn (R) | Tom Corcoran (R) | Ed Madigan (R) | Lynn M. Martin (R) | Lane Evans (D) | Bob Michel (R) | Dan Crane (R) | Dick Durbin (D) | Melvin Price (D) | Paul Simon (D) | |||||
| 99th (1985–1987) | Charles Hayes (D) | Harris Fawell (R) | John E. Grotberg (R) | Terry L. Bruce (D) | Ken Gray (D) | ||||||||||||||||||||||
| 100th (1987–1989) | Jack Davis (R) | Dennis Hastert (R) | |||||||||||||||||||||||||
| 101st (1989–1991) | George Sangmeister (D) | Jerry Costello (D) | Glenn Poshard (D) | ||||||||||||||||||||||||
| 102nd (1991–1993) | John Cox (D) | ||||||||||||||||||||||||||
Following the 1990 census, Illinois was apportioned 20 seats.
| Congress | District | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 103rd (1993–1995) | Bobby Rush (D) | Mel Reynolds (D) | Bill Lipinski (D) | Luis Gutiérrez (D) | Dan Rostenkowski (D) | Henry Hyde (R) | Cardiss Collins (D) | Phil Crane (R) | Sidney Yates (D) | John Porter (R) | George Sangmeister (D) | Jerry Costello (D) | Harris Fawell (R) | Dennis Hastert (R) | Tom Ewing (R) | Don Manzullo (R) | Lane Evans (D) | Bob Michel (R) | Glenn Poshard (D) | Dick Durbin (D) | |||
| 104th (1995–1997) | Michael Flanagan (R) | Jerry Weller (R) | Ray LaHood (R) | ||||||||||||||||||||
| 105th (1997–1999) | Jesse Jackson Jr. (D) | Rod Blagojevich (D) | Danny Davis (D) | John Shimkus (R) | |||||||||||||||||||
| 106th (1999–2001) | Jan Schakowsky (D) | Judy Biggert (R) | David Phelps (D) | ||||||||||||||||||||
| 107th (2001–2003) | Mark Kirk (R) | Tim Johnson (R) | |||||||||||||||||||||
Following the 2000 census, Illinois was apportioned 19 seats.
| Congress | District | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 108th | Bobby Rush (D) | Jesse Jackson Jr. (D) | Bill Lipinski (D) | Luis Gutiérrez (D) | Rahm Emanuel (D) | Henry Hyde (R) | Danny Davis (D) | Phil Crane (R) | Jan Schakowsky (D) | Mark Kirk (R) | Jerry Weller (R) | Jerry Costello (D) | Judy Biggert (R) | Dennis Hastert (R) | Tim Johnson (R) | Don Manzullo (R) | Lane Evans (D) | Ray LaHood (R) | John Shimkus (R) | ||
| 109th | Dan Lipinski (D) | Melissa Bean (D) | |||||||||||||||||||
| 110th | Peter Roskam (R) | Phil Hare (D) | |||||||||||||||||||
| 111th | Mike Quigley (D) | Debbie Halvorson (D) | Bill Foster (D) | Aaron Schock (R) | |||||||||||||||||
| 112th | Joe Walsh (R) | Bob Dold (R) | Adam Kinzinger (R) | Randy Hultgren (R) | Bobby Schilling (R) | ||||||||||||||||
Following the 2010 census, Illinois was apportioned 18 seats.
| Congress | District | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 113th | Bobby Rush (D) | Robin Kelly (D) | Dan Lipinski (D) | Luis Gutiérrez (D) | Mike Quigley (D) | Peter Roskam (R) | Danny Davis (D) | Tammy Duckworth (D) | Jan Schakowsky (D) | Brad Schneider (D) | Bill Foster (D) | William Enyart (D) | Rodney Davis (R) | Randy Hultgren (R) | John Shimkus (R) | Adam Kinzinger (R) | Cheri Bustos (D) | Aaron Schock (R) | ||
| 114th | Bob Dold (R) | Mike Bost (R) | ||||||||||||||||||
| Darin LaHood (R) | ||||||||||||||||||||
| 115th | Raja Krishnamoorthi (D) | Brad Schneider (D) | ||||||||||||||||||
| 116th | Chuy García (D) | Sean Casten (D) | Lauren Underwood (D) | |||||||||||||||||
| 117th | Marie Newman (D) | Mary Miller (R) | ||||||||||||||||||
Following the 2020 census, Illinois was apportioned 17 seats.