The 2nd district includes all or parts of Belmont Cragin, Dunning, Hermosa, Humboldt Park, Logan Square, and West Town.
[11] Zehra Quadri, David Zulkey, and Caroline Mcateer-Fournier have also filed to run in the Democratic primary.
[5] Villivalam has been endorsed by Congresswoman Jan Schakowsky, Congressman Brad Schneider, State Senator Laura Murphy, and Alderman Ameya Pawar.
The 9th district includes all or parts of Evanston, Glencoe, Glenview, Golf, Morton Grove, Northbrook, Northfield, Skokie, Wilmette, and Winnetka.
[18] On July 28, 2017, State Representative Laura Fine announced her intention to run for the 9th Senate District.
[19] On December 4, 2017, both Fine and her Republican opponent, 2016 congressional candidate Joan McCarthy Lasonde, filed petitions.
[21] He currently represents the 12th district which includes all or parts of Bridgeview, Burbank, Bedford Park, McCook, Brookfield, Riverside, Berwyn, and Cicero.
The 15th district stretches from Blue Island in the north, Calumet City in the east, Homewood in the west, Steger in the south, and includes all or parts of Crete-Monee, Dolton, Flossmoor, Glenwood, Thornton, Markham, Midlothian, Oak Forest, Harvey, Riverdale, and South Holland.
The 17th district includes Burnside, Chatham, Pullman, and South Deering in Chicago and the suburbs of Burnham, Calumet City, Lansing, Ford Heights, Lynwood, Sauk Village, Willowbrook, Beecher, Manteno and Grant Park.
The 47th district includes all or parts of Wheaton, Glen Ellyn, Lombard, Elmhurst, Oak Brook, Western Springs, Clarendon Hills, Westmont, Hinsdale, Downers Grove, and Lisle.
[5] Tom Rooney has represented the 27th district since his September 2016 appointment to replace outgoing senator Matt Murphy.
The 30th district includes all or part of the municipalities of Beach Park, Buffalo Grove, Green Oaks, Lincolnshire, Mundelein, North Chicago, Riverwoods, Wheeling, Vernon Hills and Waukegan.
The 33rd district includes all or parts of Geneva, St. Charles, West Dundee, Hampshire, Huntley, Carpentersville, Lake in the Hills and Algonquin.
He currently represents the 35th district which includes South Beloit, Rockton, Poplar Grove, Cherry Valley, Rockford, Genoa, DeKalb, Sycamore, Cortland, Hinckley, Maple Park, and Campton Hills.
The 36th district, located in Western Illinois, includes all or parts of Savanna, Morrison, Sterling, Rock Falls, Port Byron, Hillsdale, Silvis, East Moline, Moline and Coal Valley, Rock Island, Milan, Taylor Ridge and Andalusia.
The 38th district includes all or parts of Spring Valley, DePue, Granville, Hennepin, LaSalle, Ottawa, Marseilles, Oglesby, Streator, Plano, Morris, and Minooka.
[53] The 41st district includes all or parts of Lemont, Indian Head Park, LaGrange, Western Springs, Homer Glen, Burr Ridge, Darien, Downers Grove, Lisle, Willowbrook, Woodridge, Naperville, and Bolingbrook.
The 45th includes all or parts of Jo Daviess, Stephenson, Carroll, Winnebago, Ogle, Lee, DeKalb and LaSalle counties in northwestern Illinois.
[5] Li Arellano Jr., the Mayor of Dixon, had planned to run in the Republican primary, but withdrew on December 2 citing his responsibilities outside of politics.
He currently represents the 50th district which includes all or parts of Pike, Calhoun, Greene, Jersey, Macoupin, Morgan, Scott, and Sangamon counties.
The 51st district includes all or parts of McLean, DeWitt, Macon, Moultrie, Champaign, Douglas, Edgar, and Shelby counties.
He represents the 53rd district which includes all or parts of Ford, Iroquois, Livingston, McLean, Vermilion, and Woodford counties in Central Illinois.
He represents the 54th district which includes all or parts of Effingham, Fayette, Bond, Clinton, Marion, Madison, Washington, and St. Clair counties in Downstate Illinois.
[70] On November 27, 2017, four candidates filed to run in the Republican primary; Greenville University basketball coach George Barber, Clinton County Board member Rafael Him, perennial candidate Jason Plummer, and Marion County Republican Party Chairman Benjamin Stratemeyer.
He represents the 56th district which includes all or parts of Alton, Bethalto, Caseyville, Collinsville, East Alton, Edwardsville, Elsah, Fairview Heights, Glen Carbon, Godfrey, Granite City, Hartford, Madison, Maryville, O'Fallon, Pontoon Beach, Roxana, Shiloh, South Roxana, Swansea, and Wood River.
[76] On March 10, 2018, Hal Patton was removed from the ballot by the Illinois Appellate Court after he signed a petition for Katie Stuart.
[81] On November 27, 2017, shock jock and convicted felon Bob Romanik filed for the Republican nomination.
[84] The same day, Christopher Belt, the Cahokia School Board President, became the sole Democrat to file for the seat.
[86] The St. Clair County Republican Party endorsed Hildenbrand, citing Romanik's past racist and sexist comments.
[5] Steve Webb, superintendent of Goreville Community Unit School District #1, has been slated as the Democratic nominee and will appear on the ballot if he receives 1,000 valid petition signatures by June 4, 2018.