# 2024 Illinois Senate election

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The 2024 elections for the Illinois Senate were held on Tuesday, November 5, 2024. The general primary election for established political parties was held on March 19, 2024.
Elections were held for 23 out of 59 seats in the Illinois Senate.
No seats were changed in this election.

## Retirements

Two incumbents did not seek re-election.

### Republicans

Two Republicans did not seek re-election.
* District 37: Win Stoller retired.
* District 53: Thomas M. Bennett retired.

## Incumbents defeated
### In primary election

Once incumbent senator, a Democrat, was defeated in the March 19 primary election.

#### Democrats

* District 20: Natalie Toro lost nomination to a full term to Graciela Guzmán.

## Predictions

| Source | Ranking | As of |
| Sabato's Crystal Ball | Safe D | October 23, 2024 |

## Summary of results by district

Italics denote an open seat held by the incumbent party; bold text denotes a gain for a party.
* Districts that did not hold elections in 2024 are not listed below.
| State Senate District | Incumbent | Party | Elected Senator | Outcome |
| 1 | Javier Loera Cervantes | Dem | Javier Loera Cervantes | Dem Hold |
| 4 | Kimberly A. Lightford | Dem | Kimberly A. Lightford | Dem Hold |
| 5 | Lakesia Collins | Dem | Lakesia Collins | Dem Hold |
| 7 | Mike Simmons | Dem | Mike Simmons | Dem Hold |
| 10 | Robert Martwick | Dem | Robert Martwick | Dem Hold |
| 13 | Robert Peters | Dem | Robert Peters | Dem Hold |
| 16 | Willie Preston | Dem | Willie Preston | Dem Hold |
| 19 | Michael Hastings | Dem | Michael Hastings | Dem Hold |
| 20 | Natalie Toro | Dem | Graciela Guzmán | Dem Hold |
| 22 | Cristina Castro | Dem | Cristina Castro | Dem Hold |
| 25 | Karina Villa | Dem | Karina Villa | Dem Hold |
| 27 | Mark L. Walker | Dem | Mark L. Walker | Dem Hold |
| 28 | Laura Murphy | Dem | Laura Murphy | Dem Hold |
| 31 | Mary Edly-Allen | Dem | Mary Edly-Allen | Dem Hold |
| 34 | Steve Stadelman | Dem | Steve Stadelman | Dem Hold |
| 37 | Win Stoller | Rep | Li Arellano Jr. | Rep Hold |
| 40 | Patrick Joyce | Dem | Patrick Joyce | Dem Hold |
| 43 | Rachel Ventura | Dem | Rachel Ventura | Dem Hold |
| 46 | Dave Koehler | Dem | Dave Koehler | Dem Hold |
| 49 | Meg Loughran Cappel | Dem | Meg Loughran Cappel | Dem Hold |
| 52 | Paul Faraci | Dem | Paul Faraci | Dem Hold |
| 53 | Thomas M. Bennett | Rep | Chris Balkema | Rep Hold |
| 55 | Jason Plummer | Rep | Jason Plummer | Rep Hold |
| 58 | Terri Bryant | Rep | Terri Bryant | Rep Hold |

## Elections by district
### District 1

Democrat Javier Cervantes was elected to the Illinois Senate unopposed in the 2022 general election. He was appointed to the Senate on November 18, 2022, to serve during veto session of the 102nd General Assembly. No Republican candidate has filed to run against him in 2024.
1st District Democratic primary details :
Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Javier Cervantes (incumbent) | 10,213 | 100.0 |
| Total votes | Total votes | Total votes | 10,213 | 100.0 |
2024 Illinois Senate election, 1st District :
| Party | Party | Candidate | Votes | % |
| | Democratic | Javier Cervantes (Incumbent) | 43,813 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 4

Democrat Kimberly Lightford was reelected to the Illinois Senate unopposed in the 2022 general election. She is running for re-election against Republican Robert Sumrell Jr.
4th District Democratic primary details :
Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Kimberly Lightford (incumbent) | 20,222 | 100.0 |
| Total votes | Total votes | Total votes | 20,222 | 100.0 |
4th District Republican primary details :
Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Robert Sumrell Jr. | 2,650 | 100.0 |
| Total votes | Total votes | Total votes | 2,650 | 100.0 |
2024 Illinois' 4th legislative district election results :
| Party | Party | Candidate |
| | Democratic | Kimberly Lightford (incumbent) |
| | Republican | Robert Sumrell Jr. |
| Total votes | Total votes | Total votes |
2024 Illinois Senate election, 4th District :
| Party | Party | Candidate | Votes | % |
| | Democratic | Kimberley A. Lightford (Incumbent) | 65,312 | 76.4 |
| | Republican | Robert Sumrell Jr. | 20,177 | 23.6 |
| Total votes | Total votes | Total votes | 85,489 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 5

Democrat Lakesia Collins was appointed to the Illinois Senate on August 15, 2023. There will be an election for the remaining two years of the term. No Republican candidate has filed to run against her in 2024.
5th District Democratic primary details :
Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Lakesia Collins (incumbent) | 17,088 | 100.0 |
| Total votes | Total votes | Total votes | 17,088 | 100.0 |
2024 Illinois Senate election, 5th District :
| Party | Party | Candidate | Votes | % |
| | Democratic | Lakesia Collins (Incumbent) | 63,423 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 7

The 7th district includes various neighborhoods on the north side of Chicago. Democrat Mike Simmons was elected to the Illinois Senate unopposed in the 2022 general election. He is running for reelection in 2024, once again unopposed.
7th District Democratic primary details :
Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Mike Simmons (incumbent) | 33,266 | 100.0 |
| Total votes | Total votes | Total votes | 33,266 | 100.0 |
2024 Illinois Senate election, 7th District :
| Party | Party | Candidate | Votes | % |
| | Democratic | Mike Simmons (Incumbent) | 84,513 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 10

The 10th district includes various neighborhoods on the northwest side of Chicago and surrounding suburbs. Democrat Robert Martwick was reelected to the Illinois Senate against nominal, write-in opposition in the 2022 general election. He is seeking reelection against Republican Jon Luers.
10th District Democratic primary details :
Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Robert Martwick (incumbent) | 20,447 | 100.0 |
| Total votes | Total votes | Total votes | 20,447 | 100.0 |
10th District Republican primary details :
Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Jon Luers | 6,221 | 100.0 |
| Total votes | Total votes | Total votes | 6,221 | 100.0 |
2024 Illinois Senate election, 10th District :
| Party | Party | Candidate | Votes | % |
| | Democratic | Robert Martwick (Incumbent) | 54,001 | 60.92 |
| | Republican | Jon Luers | 34,635 | 39.08 |
| Total votes | Total votes | Total votes | 88,636 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 13

The 13th district stretches from downtown Chicago to the city's south side. Democrat Robert Peters was elected to the Illinois Senate unopposed in the 2022 general election. He is running unopposed again in 2024.
13th District Democratic primary details :
Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Robert Peters (incumbent) | 22,553 | 100.0 |
| Total votes | Total votes | Total votes | 22,553 | 100.0 |
2024 Illinois Senate election, 10th District :
| Party | Party | Candidate | Votes | % |
| | Democratic | Robert Peters (Incumbent) | 64,018 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 16

Democrat Willie Preston was elected to the Illinois Senate unopposed in the 2022 general election. He is running unopposed again in 2024.
16th District Democratic primary details :
Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Willie Preston (incumbent) | 17,011 | 100.0 |
| Total votes | Total votes | Total votes | 17,011 | 100.0 |
2024 Illinois Senate election, 16th District :
| Party | Party | Candidate | Votes | % |
| | Democratic | Willie Preston (Incumbent) | 53,401 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 19

Democrat Michael Hastings was reelected to the Illinois Senate in the 2022 general election with 50.59% of the vote. He is running for reelection against Republican Samantha Jean Gasca, who won the nomination in a three-way race.
19th District Democratic primary details :
Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Michael Hastings (incumbent) | 16,571 | 100.0 |
| Total votes | Total votes | Total votes | 16,571 | 100.0 |
19th District Republican primary details :
Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Samantha Jean Gasca | 3,670 | 36.83 |
| | Republican | Hillary Mattsey Kurzawa | 3,391 | 34.03 |
| | Republican | Max Solomon | 2,904 | 29.14 |
| Total votes | Total votes | Total votes | 9,965 | 100.0 |
2024 Illinois Senate election, 19th District :
| Party | Party | Candidate | Votes | % |
| | Democratic | Michael Hastings (Incumbent) | 62,942 | 56.35 |
| | Republican | Samantha Jean Gasca | 48,755 | 43.65 |
| Total votes | Total votes | Total votes | 111,697 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 20

Democrat Natalie Toro was appointed to the Illinois Senate on July 10, 2023, after Cristina Pacione-Zayas resigned to join the Johnson administration. As the vacancy was filled with greater than 28 months remaining in the term, state statute requires an election be held.
Toro was defeated by Graciela Guzmán in the Democratic primary. Guzmán will face off against Republican Jason Proctor in the general election.
20th District Democratic primary details :
Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Graciela Guzmán | 13,521 | 51.32 |
| | Democratic | Natalie Toro (incumbent) | 7,701 | 29.23 |
| | Democratic | Dave Nayak | 3,973 | 15.08 |
| | Democratic | Geary Yonker | 1,153 | 4.38 |
| Total votes | Total votes | Total votes | 26,348 | 100.0 |
20th District Republican primary details :
Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Jason Proctor | 1,924 | 100.0 |
| Total votes | Total votes | Total votes | 1,924 | 100.0 |
2024 Illinois Senate election, 20th District :
| Party | Party | Candidate | Votes | % |
| | Democratic | Graciela Guzmán | 61,803 | 81.23 |
| | Republican | Jason Proctor | 14,281 | 18.77 |
| Total votes | Total votes | Total votes | 76,084 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 22

Democrat Cristina Castro was elected to the Illinois Senate unopposed in the 2022 general election. She is running for reelection unopposed.
22nd District Democratic primary details :
Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Cristina Castro (incumbent) | 7,633 | 100.0 |
| Total votes | Total votes | Total votes | 7,633 | 100.0 |
2024 Illinois Senate election, 22nd District :
| Party | Party | Candidate | Votes | % |
| | Democratic | Cristina Castro (incumbent) | 47,763 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 25

Democrat Karina Villa was reelected to the Illinois Senate in the 2022 general election with 58.72% of the vote. She is running for reelection against Republican Heather Brown.
25th District Democratic primary details :
Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Karina Villa (incumbent) | 8,894 | 100.0 |
| Total votes | Total votes | Total votes | 8,894 | 100.0 |
25th District Republican primary details :
Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Heather Brown | 6,047 | 100.0 |
| Total votes | Total votes | Total votes | 6,047 | 100.0 |
2024 Illinois Senate election, 25th District :
| Party | Party | Candidate | Votes | % |
| | Democratic | Karina Villa (Incumbent) | 46,205 | 58.94 |
| | Republican | Heather Brown | 32,183 | 41.06 |
| Total votes | Total votes | Total votes | 78,388 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 27

2024 Illinois Senate election, 27th District :
| Party | Party | Candidate | Votes | % |
| | Democratic | Mark L. Walker | 53,917 | 57.55 |
| | Republican | Tom Schlenhardt | 39,769 | 42.45 |
| Total votes | Total votes | Total votes | 93,686 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 28

Democrat Laura Murphy was reelected to the Illinois Senate in the 2022 general election with 58.72% of the vote. She is running for reelection unopposed.
28th District Democratic primary details :
Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Laura Murphy (incumbent) | 12,416 | 100.0 |
| Total votes | Total votes | Total votes | 12,416 | 100.0 |
2024 Illinois Senate election, 28th District :
| Party | Party | Candidate | Votes | % |
| | Democratic | Laura Murphy (incumbent) | 57,919 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 31

Democrat Mary Edly-Allen was elected to the Illinois Senate in the 2022 general election with 58.72% of the vote. She is running for reelection unopposed.
31st District Democratic primary details :
Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Mary Edly-Allen (incumbent) | 8,511 | 100.0 |
| Total votes | Total votes | Total votes | 8,511 | 100.0 |
2024 Illinois Senate election, 31st District :
| Party | Party | Candidate | Votes | % |
| | Democratic | Mary Edly-Allen (incumbent) | 52,654 | 58.16 |
| | Republican | Ashley Jensen | 37,880 | 41.84 |
| Total votes | Total votes | Total votes | 90,534 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 34

Democrat Steve Stadelman was reelected to the Illinois Senate in the 2022 general election with 58.59% of the vote. He is running for reelection against Republican Crystal Villarreal Soltow.
34th District Democratic primary details :
Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Steve Stadelman (incumbent) | 7,713 | 100.0 |
| Total votes | Total votes | Total votes | 7,713 | 100.0 |
34th District Republican primary details :
Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Crystal Villarreal Soltow | 6,873 | 100.0 |
| Total votes | Total votes | Total votes | 6,873 | 100.0 |
2024 Illinois Senate election, 34th District :
| Party | Party | Candidate | Votes | % |
| | Democratic | Steve Stadelman (incumbent) | 49,576 | 62.11 |
| | Republican | Crystal Villarreal Soltow | 30,238 | 37.89 |
| Total votes | Total votes | Total votes | 79,814 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 37

The 37th district includes all or parts of Lee, Bureau, Henry, DeKalb, Ogle, Rock Island, Whiteside, Stark, Peoria, Woodford and Marshall counties. Republican Win Stoller was elected to the Illinois Senate unopposed in the 2022 general election. Stoller is not running for reelection. In the Republican primary, Chirs Bishop, a member of the Dixon City Council, former Mayor of Dixon Li Arellano Jr, and Henry County Board member Tim Yager ran to replace him. Li Arellano Jr. won the primary and is unopposed in the general election.
Former state legislator Tom Demmer declined to be a candidate.
37th District Republican primary details :
Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Li Arellano Jr. | 9,394 | 48.45 |
| | Republican | Tim Yager | 7,078 | 36.5 |
| | Republican | Chris Bishop | 2,918 | 15.05 |
| Total votes | Total votes | Total votes | 19,390 | 100.0 |
2024 Illinois Senate election, 37th District :
| Party | Party | Candidate | Votes | % |
| | Republican | Li Arellano Jr. | 86,286 | 100.00 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### District 40

The 40th district includes the parts of the Chicago Southland in Cook and Will counties and parts of Kankakee County. Democrat Patrick Joyce was reelected to the Illinois Senate in the 2022 general election with 55.34% of the vote.
40th District Democratic primary details :
Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Patrick Joyce (incumbent) | 8,604 | 78.69 |
| | Democratic | Kimberly Earling | 2,330 | 21.31 |
| Total votes | Total votes | Total votes | 10,934 | 100.0 |
40th District Republican primary details :
Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Philip Nagel | 7,971 | 100.0 |
| Total votes | Total votes | Total votes | 7,971 | 100.0 |
2024 Illinois Senate election, 40th District :
| Party | Party | Candidate | Votes | % |
| | Democratic | Patrick Joyce (incumbent) | 51,942 | 56.40 |
| | Republican | Philip Nagel | 40,153 | 43.60 |
| Total votes | Total votes | Total votes | 92,095 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 43

Democrat Rachel Ventura was elected to the Illinois Senate in the 2022 general election with 56.05% of the vote. She is running for reelection against Republican Jennifer "Jen" Monson.
43rd District Democratic primary details :
Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Rachel Ventura (incumbent) | 10,347 | 100.0 |
| Total votes | Total votes | Total votes | 10,347 | 100.0 |
43rd District Republican primary details :
Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Jennifer "Jen" Monson | 7,210 | 100.0 |
| Total votes | Total votes | Total votes | 7,210 | 100.0 |
2024 Illinois Senate election, 43rd District :
| Party | Party | Candidate | Votes | % |
| | Democratic | Rachel Ventura (incumbent) | 49,057 | 58.18 |
| | Republican | Jennifer “Jen” Monson | 35,266 | 41.82 |
| Total votes | Total votes | Total votes | 84,323 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 46

The 46th district is located in Central Illinois and includes portions of Peoria and Bloomington-Normal. Democrat Dave Koehler was elected to the Illinois Senate in the 2022 general election with 58.07% of the vote. Koehler is running for reelection against Republican Sally Owens.
46th District Democratic primary details :
Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Dave Koehler (incumbent) | 9,139 | 100.0 |
| Total votes | Total votes | Total votes | 9,139 | 100.0 |
46th District Republican primary details :
Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Sally Owens | 7,483 | 100.0 |
| Total votes | Total votes | Total votes | 7,483 | 100.0 |
2024 Illinois Senate election, 46th District :
| Party | Party | Candidate | Votes | % |
| | Democratic | Dave Koehler (incumbent) | 53,156 | 57.58 |
| | Republican | Sally Owens | 39,168 | 42.42 |
| Total votes | Total votes | Total votes | 92,324 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 49

Democrat Meg Loughran Cappel was elected to the Illinois Senate unopposed in the 2022 general election. She is being challenged for reelection by Republican Katie Deane-Schlottman.
49th District Democratic primary details :
Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Meg Loughran Cappel (incumbent) | 9,360 | 100.0 |
| Total votes | Total votes | Total votes | 9,360 | 100.0 |
49th District Republican primary details :
Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Katie Deane-Schlottman | 7,204 | 100.0 |
| Total votes | Total votes | Total votes | 7,204 | 100.0 |
2024 Illinois Senate election, 49th District :
| Party | Party | Candidate | Votes | % |
| | Democratic | Meg Loughran Cappel (incumbent) | 55,505 | 56.04 |
| | Republican | Katie Deane-Schlottman | 43,537 | 43.96 |
| Total votes | Total votes | Total votes | 99,042 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 52

The 52nd district, located in east-central Illinois, includes Champaign, Danville, Rantoul, St. Joseph, and Urbana.
After successfully seeking reelection to the 103rd General Assembly, Scott M. Bennett died prior to inauguration. Then-Champaign Township Assessor Paul Faraci was appointed to the Illinois Senate and sworn into office on January 11, 2023. Faraci is running for reelection against Republican Jeff Brownfield.
State Representative Carol Ammons, after seeking appointment to the seat following Bennett's death and exploring a primary run for the Democratic nomination against Faraci, opted instead to run for reelection to the Illinois House of Representatives.
52nd District Republican primary details :
Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Paul Faraci (incumbent) | 9,639 | 100.0 |
| Total votes | Total votes | Total votes | 9,639 | 100.0 |
52nd District Democratic primary details :
Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Jeff Brownfield | 6,107 | 100.0 |
| Total votes | Total votes | Total votes | 6,107 | 100.0 |
2024 Illinois Senate election, 52nd District :
| Party | Party | Candidate | Votes | % |
| | Democratic | Paul Faraci (incumbent) | 53,909 | 63.19 |
| | Republican | Jeff Brownfield | 31,405 | 36.81 |
| Total votes | Total votes | Total votes | 85,314 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 53

The 53rd district includes all or portions of Bureau, Ford, Grundy, Iroquois, LaSalle, Marshall, McLean, Peoria, Putnam, Tazewell, Will, and Woodford counties in central Illinois. Republican Jason Barickman was reelected to the Illinois Senate unopposed in the 2022 general election. After Barickman declined to take office for the 103rd General Assembly, Republican Tom Bennett was appointed to the Illinois Senate to fill the vacancy. As the vacancy was filled with greater than 28 months remaining in the term, state statute requires an election be held. Bennett is not seeking reelection.
Chris Balkema, Chair of the Grundy County Board, Susan Wynn Bence, Bennett's chief of staff, Mike Kirkton, a member of the Livingston County Board, and Jesse Faber were candidates for the Republican nomination. Gary Manier, the Mayor of Washington, and several others announced their respective candidacies, but did not file petitions by the deadline to run in the Republican primary. Kirkton's petitions were challenged for insufficient signatures, but he remained on the primary ballot.
53rd District Republican primary details :
Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Chris Balkema | 11,788 | 49.44 |
| | Republican | Jesse Faber | 7,588 | 31.83 |
| | Republican | Mike Kirkton | 2,587 | 10.85 |
| | Republican | Susan Wynn Bence | 1,879 | 7.88 |
| Total votes | Total votes | Total votes | 23,842 | 100.0 |
2024 Illinois Senate election, 53rd District :
| Party | Party | Candidate | Votes | % |
| | Republican | Chris Balkema | 90,825 | 100.00 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### District 55

The 55th district, located in downstate Illinois, includes all or parts of Richland, Clay, Fayette, Marion, Clinton, Madison, and St. Clair counties. Republican Jason Plummer was reelected to the Illinois Senate unopposed in the 2022 general election. He is running for reelection unopposed.
55th District Republican primary details :
Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Jason Plummer (incumbent) | 22,703 | 100.0 |
| Total votes | Total votes | Total votes | 22,703 | 100.0 |
2024 Illinois Senate election, 55th District :
| Party | Party | Candidate | Votes | % |
| | Republican | Jason Plummer (incumbent) | 95,805 | 100.00 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### District 58

Republican Terri Bryant was reelected to the Illinois Senate unopposed in the 2022 general election. Bryant is running for reelection and was challenged by Wesley Kash, a former Assistant State's Attorney in Jefferson County, in the Republican primary. Bryant is unopposed in the general election.
58th District Republican primary details :
Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Terri Bryant (incumbent) | 19,982 | 69.66 |
| | Republican | Wesley Kash | 8,702 | 30.34 |
| Total votes | Total votes | Total votes | 28,684 | 100.0 |
2024 Illinois Senate election, 58th District :
| Party | Party | Candidate | Votes | % |
| | Republican | Terri Bryant (incumbent) | 93,113 | 100.00 |
| | Republican hold | Republican hold | Republican hold | Republican hold |