| House 1 | Daniel J. Burke (D) 100% | Unopposed | |
| House 2 | Edward Acevedo (D) 100% | Unopposed | |
| House 3 | Luis Arroyo (D) 100% | Unopposed | |
| House 4 | Cynthia Soto (D) 100% | Unopposed | |
| House 5 | Kenneth Dunkin (D) 82.64% | Collin Johnson (R) 17.36% | |
| House 6 | Esther Golar (D) 100% | Unopposed | |
| House 7 | Emanuel "Chris" Welch (D) 100% | Unopposed | |
| House 8 | La Shawn Ford (D) 100% | Unopposed | |
| House 9 | Arthur Turner II (D) 100% | Unopposed | |
| House 10 | Pamela Reaves-Harris (D) 85.3% | Mark Calonder (R) 14.7% | |
| House 11 | Ann Williams (D) 100% | Unopposed | |
| House 12 | Sara Feigenholtz (D) 100% | Unopposed | |
| House 13 | Gregory Harris (D) 100% | Unopposed | |
| House 14 | Kelly Cassidy (D) 87.02% | Denis Detzel (R) 12.98% | |
| House 15 | John C. D'Amico (D) 62.25% | Greg Bedell (R) 37.75% | |
| House 16 | Lou Lang (D) 100% | Unopposed | |
| House 17 | Laura Fine (D) 58.4% | Kathleen Myalls (R) 41.6% | |
| House 18 | Robyn Gabel (D) 100% | Unopposed | |
| House 19 | Rob Martwick (D) 100% | Unopposed | |
| House 20 | Michael P. McAuliffe (R) 62.45% | Mo Khan (D) 37.55% | |
| House 21 | Silvana Tabares (D) 100% | Unopposed | |
| House 22 | Michael P. Madigan (D) 100% | Unopposed | |
| House 23 | Michael J Zalewski (D) 100% | Unopposed | |
| House 24 | Lisa Hernandez (D) 100% | Unopposed | |
| House 25 | Barbara Flynn Currie (D) 100% | Unopposed | |
| House 26 | Christian Mitchell (D) 83.5% | Jacob "Coby" Hakalir (R) 16.5% | |
| House 27 | Monique D. Davis (D) 100% | Unopposed | |
| House 28 | Bob Rita (D) 100% | Unopposed | |
| House 29 | Thaddeus Jones (D) 100% | Unopposed | |
| House 30 | Bill Davis (D) 100% | Unopposed | |
| House 31 | Mary E. Flowers (D) 100% | Unopposed | |
| House 32 | Andre Thapedi (D) 100% | Unopposed | |
| House 33 | Marcus Evans (D) 100% | Unopposed | |
| House 34 | Elgie R. Sims, Jr. (D) 74.79% | Mark Ekhoff (R) 25.21% | |
| House 35 | Frances Ann Hurley (D) 66.1% | Victor C Horne (R) 33.9% | |
| House 36 | Kelly M. Burke (D) 100% | Unopposed | |
| House 37 | Margo McDermed (R) 68.93% | Nichole Serbin (D) 31.07% | |
| House 38 | Al Riley (D) 76.04% | Anthony Granata (R) 23.96% | |
| House 39 | Will Guzzardi (D) 100% | Unopposed | |
| House 40 | Jaime Andrade (D) 100% | Unopposed | |
| House 41 | Grant Wehrli (R) 67.65% | Ed Agustin (D) 32.35% | |
| House 42 | Jeanne M Ives (R) 100% | Unopposed | |
| House 43 | Anna Moeller (D) 60.07% | Jeffrey A Meyer (R) 39.93% | |
| House 44 | Fred Crespo (D) 54.72% | Ramiro Juarez (R) 45.28% | |
| House 45 | Christine Jennifer Winger (R) 54.44% | Jenny M Burke (D) 45.56% | |
| House 46 | Deborah Conroy (D) 52.53% | Heidi Holan (R) 47.47% | |
| House 47 | Patricia R. Bellock (R) 100% | Unopposed | |
| House 48 | Peter Breen (R) 93.63% | Marian Tomlinson (D) 6.37% | |
| House 49 | Mike Fortner (R) 100% | Unopposed | |
| House 50 | Keith Wheeler (R) 67.88% | Valerie L Burd (D) 32.12% | |
| House 51 | Ed Sullivan, Jr. (R) 100% | Unopposed | |
| House 52 | David McSweeney (R) 69.59% | Bill Downs (D) 30.41% | |
| House 53 | David Harris (R) 100% | Unopposed | |
| House 54 | Thomas R. Morrison (R) 65.92% | Laddi K Singh (D) 34.08% | |
| House 55 | Martin J. Moylan (D) 52.71% | Mel Thillens (R) 47.29% | |
| House 56 | Michelle Mussman (D) 51.45% | Jim Moynihan (R) 48.55% | |
| House 57 | Elaine Nekritz (D) 56.47% | Bill Grossi (R) 43.53% | |
| House 58 | Scott Drury (D) 54.52% | Mark Neerhof (R) 45.48% | |
| House 59 | Carol Sente (D) 52.43% | Leslie Munger (R) 47.57% | |
| House 60 | Rita Mayfield (D) 67.16% | Keith E Turner (I) 32.84% | |
| House 61 | Sheri Jesiel (R) 58.02% | Loren Karner (D) 41.98% | |
| House 62 | Sam Yingling (D) 52.1% | Rod Drobinski (R) 47.9% | |
| House 63 | Jack D. Franks (D) 58.54% | Steve Reick (R) 41.46% | |
| House 64 | Barbara Wheeler (R) 69.3% | Joel Mains (D) 30.7% | |
| House 65 | Steven A Andersson (R) 100% | Unopposed | |
| House 66 | Michael W. Tryon (R) 100% | Unopposed | |
| House 67 | Litesa E Wallace (D) 100% | Ervin Wainwright (R) 0% | |
| House 68 | John Cabello (R) 100% | Unopposed | |
| House 69 | Joe Sosnowski (R) 100% | Unopposed | |
| House 70 | Robert W. Pritchard (R) 100% | Unopposed | |
| House 71 | Mike Smiddy (D) 50.45% | Jim Wozniak (R) 49.55% | |
| House 72 | Patrick J. Verschoore (D) 100% | Unopposed | |
| House 73 | David R. Leitch (R) 100% | Unopposed | |
| House 74 | Donald L. Moffitt (R) 100% | Unopposed | |
| House 75 | John D Anthony (R) 57.96% | Martha J Shugart (D) 42.04% | |
| House 76 | Frank J. Mautino (D) 50.49% | Jerry Lee Long (R) 49.51% | |
| House 77 | Kathleen Willis (D) 100% | Unopposed | |
| House 78 | Camille Lilly (D) 99.97% | Tom Demas (R) 0.03% | |
| House 79 | Katherine "Kate" Cloonen (D) 50.19% | Glenn Nixon (R) 49.81% | |
| House 80 | Anthony DeLuca (D) 100% | Unopposed | |
| House 81 | Ron Sandack (R) 59.99% | Elizabeth "Liz" Chaplin (D) 40.01% | |
| House 82 | Jim Durkin (R) 100% | Unopposed | |
| House 83 | Linda Chapa LaVia (D) 100% | Unopposed | |
| House 84 | Stephanie Kifowit (D) 58.15% | Krishna Bansal (R) 41.85% | |
| House 85 | Emily Mcasey (D) 100% | Unopposed | |
| House 86 | Lawrence Walsh, Jr. (D) 65.06% | Diane Harris (R) 34.94% | |
| House 87 | Rich Brauer (R) 100% | Unopposed | |
| House 88 | Keith P. Sommer (R) 100% | Unopposed | |
| House 89 | Brian W Stewart (R) 100% | Unopposed | |
| House 90 | Tom Demmer (R) 100% | Unopposed | |
| House 91 | Michael D. Unes (R) 66.72% | Chad Schmidgall (D) 33.28% | |
| House 92 | Jehan Gordon-Booth (D) 100% | Unopposed | |
| House 93 | Norine Hammond (R) 100% | Unopposed | |
| House 94 | Randy Frese (R) 100% | Unopposed | |
| House 95 | Wayne Rosenthal (R) 100% | Unopposed | |
| House 96 | Sue Scherer (D) 55.21% | Michael B Bell (R) 44.79% | |
| House 97 | Mark Batinick (R) 56.9% | Moira K Dunn (D) 43.06%, Russ "Odin" Harrison 0.04% | |
| House 98 | Natalie Manley (D) 61.45% | Yvonne Bolton (R) 38.55% | |
| House 99 | Raymond Poe (R) 100% | Unopposed | |
| House 100 | C.D. Davidsmeyer (R) 65.8% | Josh Evans (D) 34.2% | |
| House 101 | Billy Mitchell (R) 100% | Unopposed | |
| House 102 | Adam M. Brown (R) 74.46% | Matt Forcum (D) 25.54% | |
| House 103 | Carol Ammons (D) 61.42% | Kristin Williamson (R) 38.58% | |
| House 104 | Chad Hays (R) 100% | Unopposed | |
| House 105 | Dan Brady (R) 100% | Unopposed | |
| House 106 | Thomas Bennett (R) 80.17% | William Nutter (D) 19.83% | |
| House 107 | John Cavaletto (R) 69.95% | Josh Berger (D) 30.05% | |
| House 108 | Charlie Meier (R) 100% | Unopposed | |
| House 109 | David Reis (R) 100% | Unopposed | |
| House 110 | Reginald "Reggie" Phillips (R) 100% | Unopposed | |
| House 111 | Daniel V. Beiser (D) 100% | Unopposed | |
| House 112 | Dwight D. Kay (R) 58.74% | Cullen L Cullen (D) 41.26% | |
| House 113 | Jay Hoffman (D) 59.54% | Melinda Hult (R) 40.46% | |
| House 114 | Eddie Lee Jackson (D) 100% | Unopposed | |
| House 115 | Terri Bryant (R) 60.78% | William "Bill" Kilquist (D) 38.91%, Gary Shepherd 0.3% | |
| House 116 | Jerry Costello II (D) 100% | Unopposed | |
| House 117 | John E. Bradley (D) 99.38% | Catherine Talbott (R) 0.62% | |
| House 118 | Brandon Phelps (D) 99.74% | Tabitha Tripp (R) 0.26% | |
| Senate 3 | Mattie Hunter (D) 100% | Unopposed | |
| Senate 6 | John J. Cullerton (D) 66.26% | Stefanie Linares (R) 33.74% | |
| Senate 9 | Daniel K. Biss (D) 100% | Unopposed | |
| Senate 12 | Steven Landek (D) 100% | Unopposed | |
| Senate 15 | Napoleon Harris (D) 100% | Unopposed | |
| Senate 18 | Bill Cunningham (D) 58.33% | Shaun Colin Murphy (R) 41.67% | |
| Senate 21 | Michael Connelly (R) 100% | Unopposed | |
| Senate 24 | Chris Nybo (R) 60.28% | Suzanne Glowiak (D) 39.72% | |
| Senate 27 | Matt Murphy (R) 100% | Unopposed | |
| Senate 30 | Terry Link (D) 59.22% | Don Wilson (R) 40.78% | |
| Senate 33 | Karen Mcconnaughay (R) 100% | Unopposed | |
| Senate 36 | Neil Anderson (R) 54.27% | Mike Jacobs (D) 45.73% | Flipped D to R; Incumbent defeated |
| Senate 39 | Don Harmon (D) 100% | Unopposed | |
| Senate 42 | Linda Holmes (D) 100% | Unopposed | |
| Senate 45 | Tim Bivins (R) 100% | Unopposed | |
| Senate 48 | Andy Manar (D) 55.62% | Linda Little (R) 44.38% | |
| Senate 51 | Chapin Rose (R) 100% | Unopposed | |
| Senate 54 | Kyle Mccarter (R) 100% | Unopposed | |
| Senate 57 | James F. Clayborne, Jr., II (D) 51.81% | Katherine L Ruocco (R) 48.19% | |