The Illinois Senate is the upper chamber of the Illinois General Assembly,the legislative branch of the government of the State of Illinois in the United States. The body was created by the first state constitution adopted in 1818. Under the Illinois Constitution of 1970,the Illinois Senate is made up of 59 senators elected from individual legislative districts determined by population and redistricted every 10 years;based on the 2020 U.S. census each senator represents approximately 213,347 people. Senators are divided into three groups,each group having a two-year term at a different part of the decade between censuses,with the rest of the decade being taken up by two four-year terms. This ensures that the Senate reflects changes made when the General Assembly redistricts itself after each census.
Steve Rauschenberger is an American politician who served as a Republican member of the Illinois State Senate from 1993 to 2007.
James Brian Durkin is an American politician who served as a Republican member of the Illinois House of Representatives from 1995 to 2003 and again from 2006 to 2023. He served as the Minority Leader of the Illinois House of Representatives from 2013 to 2023.
William E. Brady is an American politician who was a Republican member of the Illinois Senate from May 2002 until his resignation in December 2020.
Michael Noland is a former Democratic member of the Illinois Senate,representing the 22nd District from 2007 to 2017. In November 2018,he was elected Kane County Circuit Court Judge in the 16th Judicial Circuit of Illinois.
Deborah L. Halvorson is an American politician who served as the U.S. representative for Illinois's 11th congressional district from 2009 until 2011. Previously,she served in the Illinois Senate from 1997 through 2009. She is a member of the Democratic Party. In September 2011,she filed to run in the newly redistricted 2nd congressional district but was defeated in the Democratic primary by the incumbent,Jesse Jackson Jr.
Tim Bivins was a Republican member of the Illinois Senate representing the 45th district from 2008 to 2018.
Heather Adeline Steans is a former Democratic member of the Illinois Senate,representing the 7th district. She was appointed after winning a special primary election that followed the mid-term resignation of her predecessor,Senator Carol Ronen. She resigned from office on January 19,2021 after 12 years in office.
Emil Jones III is the Illinois State Senator for the 14th Senate District since 2010. The 14th district covers all or parts of Palos Heights,Oak Forest,Crestwood,Blue Island,Alsip,Midlothian,and Riverdale. Jones is the son of former Illinois Senate President Emil Jones.
Dan Duffy is a Republican member of the Illinois Senate. He represents the 26th Senate District which includes Barrington,Barrington Hills,North Barrington,Libertyville,Mundelein,Lake Zurich,Fox River Grove,Lakewood Hills,Cary,Hawthorn Woods,Lake in the Hills,Cuba and Kildeer.
Jason Barickman,is a Republican former member of the Illinois Senate,who represented the 53rd district from January 2013 until January 2023. Before being elected to the Illinois Senate,he served in the Illinois House of Representatives,representing the 105th district from 2011 to 2013.
Bill Cunningham is a Democratic member of the Illinois Senate,representing the 18th District. The 18th district includes all or parts of Beverly,Mount Greenwood,Morgan Park and Auburn-Gresham in Chicago and the suburbs of Evergreen Park,Chicago Ridge,Oak Lawn,Worth,Palos Heights and Orland Park.
Brad Halbrook is a Republican member of the Illinois General Assembly. He was a small business owner who ran a company making fences before joining the general assembly. In April 2012,Halbrook was appointed to the state legislature to fill out the term of retiring state legislator Roger L. Eddy. He did not run for re-election in 2014 and was succeeded by Reggie Phillips,and he returned to the Illinois House after the 2016 elections.
Melinda Bush is a member of the Illinois Senate for the 31st district. The 31st district spans northern Lake County and includes all or parts of Zion,Round Lake,Round Lake Beach,Gages Lake,Winthrop Harbor,Old Mill Creek,Wadsworth,Lindenhurst,Antioch,Waukegan,Gurnee,Beach Park,Grayslake and Lake Villa.
Daniel McConchie is a Republican member of the Illinois Senate. He represents the 26th Senate District which includes Algonquin,Barrington,Cary,Deer Park,Fox River Grove,Hawthorn Woods,Hoffman Estates,Island Lake,Kildeer,Lake Zurich,Libertyville,Long Grove,Mundelein,and Wauconda.
Donald P. DeWitte is a Republican member of the Illinois Senate for the 33rd District.
Craig Wilcox is a Republican Illinois State Senator for the 32nd District. The district includes all or parts of Antioch,Bull Valley,Crystal Lake,Fox Lake,Greenwood,Harvard,Johnsburg,Lake Villa,Lakemoor,Marengo,McHenry,Spring Grove,Volo,Wonder Lake,and Woodstock.
Andrew S. Chesney is an American politician who is an elected Republican member of the Illinois Senate for the 45th district. The 45th district is located in the northwest corner of the state and includes all of Jo Daviess,Stephenson and Carroll counties as well as part of,Ogle,Winnebago,Boone,and DeKalb counties.
Seth Lewis is a Republican member of the Illinois Senate from the 24th district. He previously served as a member of the Illinois House of Representatives from the 45th district from 2021 to 2023.
Winston John "Win" Stoller is a Republican member of the Illinois Senate from the 37th district. The 37th district,located in North and Central Illinois,includes all or parts of Lee,Bureau,Henry,DeKalb,Ogle,Rock Island,Whiteside,Stark,Peoria,Woodford and Marshall counties.
