| State: | Illinois |
| District Number: | 8 |
| Image Caption: | Interactive map of district boundaries since January 3, 2023 |
| Representative: | Raja Krishnamoorthi |
| Party: | Democratic |
| Residence: | Schaumburg |
| English Area: | 291.5 |
| Percent Urban: | 100.0 |
| Percent Rural: | 0.0 |
| Population: | 749,823 |
| Population Year: | 2022 |
| Median Income: | $91,317[1] |
| Percent White: | 54.4 |
| Percent Hispanic: | 23.8 |
| Percent Black: | 4.3 |
| Percent Asian: | 14.3 |
| Percent More Than One Race: | 2.8 |
| Percent Other Race: | 0.5 |
| Cpvi: | D+6[2] |
The 8th congressional district of Illinois is a congressional district in the U.S. state of Illinois that has been represented by Democrat Raja Krishnamoorthi since 2017.
The congressional district covers parts of Cook County, DuPage County and Kane County, as of the 2011 redistricting which followed the 2010 United States census. All or parts of Addison, Arlington Heights, Barrington Hills, Bloomingdale, Carol Stream, Carpentersville, East Dundee, Elgin, Elk Grove Village, Glendale Heights, Hanover Park, Hoffman Estates, Lombard, Palatine, Rolling Meadows, Roselle, Schaumburg, South Elgin, Streamwood, Villa Park and Wood Dale are included.[3] These boundaries became effective on January 3, 2013.
| County | Seat | Population | ||
|---|---|---|---|---|
| 31 | Cook | Chicago | 5,173,146 | |
| 43 | DuPage | Wheaton | 932,877 | |
| 89 | Kane | Geneva | 515,588 |
The 8th district takes in the Cook County municipalities of Schaumburg, Rosemont, Rolling Meadows, South Barrington, and Streamwood; most of Hoffman Estates; half of Des Plaines and Streamwood; the majority of Elk Grove Village west of Tome Rd; part of Palatine; and part of Mt Prospect between Dempster St and W Lonnquist Blvd.
DuPage County is split between this district and the 3rd district. They are partitioned by Bartlett Rd, Old Wayne Golf Course, St Charles Rd, Fair Oaks Rd, Timber Ln, Woodcreek Ln N, Wayne Oaks Dam Reservoir, Morton Rd, Pawnee Dr, County Farm Rd, Highway 64, Gary Ave Della Ave, West St, Geneva Rd, Bloomingdale's Rd, Glendale Lakes Golf Club, President St, Gilberto St, Schubert Ave, Opal Ave, Stevenson Dr, Highway 4, Polo Club Dr, Canadian National Railway, East Branch Park, Army Trail Rd, Belmont Pl, Addison Trail High School, Woodland Ave, 7th Ave, Lake St, 3rd Ave, Eggerding Dr, Mill Rd, Highway 290, Addison Rd, Oak Meadows Golf & Banquets, Central Ave, Canadian Pacific Railway, Wood Dale Rd, Elmhurt St, and Lively Blvd. The 8th district takes in the municipalities of Bloomingdale and Carol Stream; and part of northern Glendale Heights.
Kane County is split between this district and the 11th district. They are partitioned by Illinois Highway 47, Regency Parkway, Farm Hill Dr, Del Webb Blvd, Jane Adams Memorial Tollway, Sandwald Rd, Ridgecrest Dr, Brier Hill Rd/Illinois Highway 47, Coombs Rd, Shadow Hill Dr, Campton Hills Dr, West Main St, South Tyler Rd, Division St, Fox River, North Washington Ave, Douglas Rd, Orion Rd, and East Fabyan Parkway. The 8th district takes in the municipalities of East Dundee, West Dundee, Elgin, Carpentersville, and Sleepy Hollow; most of Elgin; half of St. Charles; southern Algonquin; a portion of Geneva east of the Fox River; and part of Gilberts.
This table indicates how the district has voted in U.S. presidential elections; election results reflect voting in the district as it was configured at the time of the election, not as it is configured today.
| Year | Office | Results | |
|---|---|---|---|
| 2000 | President | George W. Bush 55% – Al Gore 42% | |
| 2004 | President | George W. Bush 55% – John Kerry 44% | |
| 2008 | President | Barack Obama 56% – John McCain 43% | |
| 2012 | President | Barack Obama 58% – Mitt Romney 41% | |
| 2016 | President | Hillary Clinton 58% – Donald Trump 36% | |
| 2020 | President | Joe Biden 59% – Donald Trump 39% |
This table indicates how the district has voted in recent statewide elections; election results reflect voting in the district as it is currently configured, not necessarily as it was at the time of these elections.
| Year | Office | Results |
|---|---|---|
| 2016 | President | Hillary Clinton 54.6% – Donald Trump 38.9% |
| Senate | Tammy Duckworth 52.4% – Mark Kirk 41.6% | |
| 2018 | Governor | J. B. Pritzker 51.0% – Bruce Rauner 43.0% |
| Attorney General | Kwame Raoul 53.3% – Erika Harold 44.1% | |
| Secretary of State | Jesse White 66.5% – Jason Helland 30.8% | |
| 2020 | President | Joe Biden 56.8% – Donald Trump 41.4% |
| Senate | Dick Durbin 55.2% – Mark Curran 39.8% | |
| 2022 | Senate | Tammy Duckworth 56.3% – Kathy Salvi 42.1% |
| Governor | J. B. Pritzker 55.1% – Darren Bailey 42.1% | |
| Attorney General | Kwame Raoul 54.8% – Tom DeVore 43.2% | |
| Secretary of State | Alexi Giannoulias 55.0% – Dan Brady 43.1% |
| Name | Party | Years | Cong– ress | Electoral history | Counties | |||
|---|---|---|---|---|---|---|---|---|
| District created March 4, 1853. | ||||||||
| align=left | William Henry Bissell | Independent Democratic | nowrap | March 4, 1853 – March 3, 1855 | Redistricted from the and re-elected in 1852. Retired. | 1853–1863 | ||
| Vacant | nowrap | March 4, 1855 – November 4, 1856 | Representative-elect Lyman Trumbull was elected to the U.S. Senate on February 8, 1855.[4] | |||||
| align=left | James L. D. Morrison | Democratic | nowrap | November 4, 1856 – March 3, 1857 | Elected to finish Trumbull's term. Retired. | |||
| align=left | Robert Smith | Democratic | nowrap | March 4, 1857 – March 3, 1859 | Elected in 1856. Lost renomination. | |||
| align=left | Philip B. Fouke | Democratic | nowrap | March 4, 1859 – March 3, 1863 | Elected in 1858. Re-elected in 1860. Retired. | |||
| align=left | John T. Stuart | Democratic | nowrap | March 4, 1863 – March 3, 1865 | Elected in 1862. Lost re-election. | 1863–1873 DeWitt, Livingston, Logan, McLean, Sangamon, Tazewell, and Woodford | ||
| align=left | Shelby Moore Cullom | Republican | nowrap | March 4, 1865 – March 3, 1871 | Elected in 1864. Re-elected in 1866. Re-elected in 1868. Retired. | |||
| align=left | James Carroll Robinson | Democratic | nowrap | March 4, 1871 – March 3, 1873 | Elected in 1870. Redistricted to the . | |||
| align=left | Greenbury L. Fort | Republican | nowrap | March 4, 1873 – March 3, 1881 | Elected in 1872. Re-elected in 1874. Re-elected in 1876. Re-elected in 1878. Retired. | 1873–1883 Ford, Iroquois, Kankakee, Livingston, Marshall, and Woodford | ||
| align=left | Lewis E. Payson | Republican | nowrap | March 4, 1881 – March 3, 1883 | Elected in 1880. Redistricted to the . | |||
| align=left | William Cullen | Republican | nowrap | March 4, 1883 – March 3, 1885 | Redistricted from the and re-elected in 1882. Lost renomination. | 1883–1895 DuPage, Grundy, Kendall, LaSalle, and Will | ||
| align=left | Ralph Plumb | Republican | nowrap | March 4, 1885 – March 3, 1889 | Elected in 1884. Re-elected in 1886. Retired. | |||
| align=left | Charles A. Hill | Republican | nowrap | March 4, 1889 – March 3, 1891 | Elected in 1888. Lost re-election. | |||
| align=left | Lewis Steward | Democratic | nowrap | March 4, 1891 – March 3, 1893 | Elected in 1890. Lost re-election. | |||
| align=left | Robert A. Childs | Republican | nowrap | March 4, 1893 – March 3, 1895 | Elected in 1892. Retired. | |||
| align=left | Albert J. Hopkins | Republican | nowrap | March 4, 1895 – March 3, 1903 | Redistricted from the and re-elected in 1894. Re-elected in 1896. Re-elected in 1898. Re-elected in 1900. Retired to run for U.S. senator. | 1895–1903 DeKalb, DuPage, Grundy, Kane, Kendall, and McHenry | ||
| align=left | William F. Mahoney | Democratic | nowrap | March 4, 1903 – December 27, 1904 | Redistricted from the and re-elected in 1902. Died. | 1903–1913 Cook | ||
| Vacant | nowrap | December 27, 1904 – March 3, 1905 | ||||||
| align=left | Charles McGavin | Republican | nowrap | March 4, 1905 – March 3, 1909 | Elected in 1904. Re-elected in 1906. Retired. | |||
Thomas Gallagher | Democratic | March 4, 1909 – March 3, 1921 | Elected in 1908. Re-elected in 1910. Re-elected in 1912. Re-elected in 1914. Re-elected in 1916. Re-elected in 1918. Retired. | |||||
| 1913–1949 Cook | ||||||||
| align=left | Stanley H. Kunz | Democratic | nowrap | March 4, 1921 – March 3, 1931 | Elected in 1920. Re-elected in 1922. Re-elected in 1924. Re-elected in 1926. Re-elected in 1928. Lost re-election. | |||
| align=left | Peter C. Granata | Republican | nowrap | March 4, 1931 – April 5, 1932 | Lost contested election. | |||
| align=left | Stanley H. Kunz | Democratic | nowrap | April 5, 1932 – March 3, 1933 | Won contested election. Lost renomination. | |||
| align=left | Leo Kocialkowski | Democratic | nowrap | March 4, 1933 – January 3, 1943 | Elected in 1932. Re-elected in 1934. Re-elected in 1936. Re-elected in 1938. Re-elected in 1940. Lost renomination. | |||
Thomas S. Gordon | Democratic | January 3, 1943 – January 3, 1959 | Elected in 1942. Re-elected in 1944. Re-elected in 1946. Re-elected in 1948. Re-elected in 1950. Re-elected in 1952. Re-elected in 1954. Re-elected in 1956. Retired. | |||||
| 1949–1953 Cook | ||||||||
| 1953–1963 Cook | ||||||||
Dan Rostenkowski | Democratic | January 3, 1959 – January 3, 1993 | Elected in 1958. Re-elected in 1960. Re-elected in 1962. Re-elected in 1964. Re-elected in 1966. Re-elected in 1968. Re-elected in 1970. Re-elected in 1972. Re-elected in 1974. Re-elected in 1976. Re-elected in 1978. Re-elected in 1980. Re-elected in 1982. Re-elected in 1984. Re-elected in 1986. Re-elected in 1988. Re-elected in 1990. Redistricted to the . | |||||
| 1963–1967 Cook | ||||||||
| 1967–1973 Cook | ||||||||
| 1973–1983 Cook | ||||||||
| 1983–1993 Cook | ||||||||
Phil Crane | Republican | January 3, 1993 – January 3, 2005 | Redistricted from the and re-elected in 1992. Re-elected in 1994. Re-elected in 1996. Re-elected in 1998. Re-elected in 2000. Re-elected in 2002. Lost re-election. | 1993–2003 Cook and Lake | ||||
| 2003–2013 Cook, Lake, and McHenry | ||||||||
| align=left | Melissa Bean | Democratic | nowrap | January 3, 2005 – January 3, 2011 | Elected in 2004. Re-elected in 2006. Re-elected in 2008. Lost re-election. | |||
| align=left | Joe Walsh | Republican | nowrap | January 3, 2011 – January 3, 2013 | Elected in 2010. Lost re-election. | |||
| align=left | Tammy Duckworth | Democratic | nowrap | January 3, 2013 – January 3, 2017 | Elected in 2012. Re-elected in 2014. Retired to run for U.S. senator. | 2013–2023 Cook, DuPage, and Kane | ||
Raja Krishnamoorthi | Democratic | January 3, 2017 – present | Elected in 2016. Re-elected in 2018. Re-elected in 2020. Re-elected in 2022. | |||||
| 2023–present Cook, DuPage, and Kane | ||||||||
See main article: 2012 United States House of Representatives elections in Illinois. Incumbent Representative Joe Walsh was drawn out of the district for 2012 by 2011 redistricting, although a candidate is not required to live in the district to be eligible to run for a seat in Congress.[5] Democrat Raja Krishnamoorthi of Hoffman Estates announced his candidacy for the seat in late May 2011. In July 2011, Democrat Tammy Duckworth also announced plans to run for the seat.[6] Duckworth won the Democratic nomination on March 20, 2012. Duckworth defeated Walsh in the general election on November 6, 2012.