# 2018 Illinois elections

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vte :
A general election was held in the U.S. state of Illinois on November 6, 2018. The elections for Illinois's 18 congressional districts, governor, statewide constitutional officers, Illinois Senate, and Illinois House were held on this date.
Primaries were held March 20, 2018.
The Democratic Party made gains, including picking up the state's governorship and flipping two of its U.S. House seats. After the election, all executive offices and control of the Illinois General Assembly was held by the Democratic Party. Conversely the Republican Party experienced what was regarded to be their worst defeat in the state since at least 2006.

## Election information

2018 was a midterm election year in the United States.

### Turnout
#### Primary election

For the primary election, turnout was 26.48%, with 2,103,634 votes cast.
Turnout by county
| County | Registration | Votes cast | Turnout |
| Adams | 47,422 | 6,670 | 14.07% |
| Alexander | 5,303 | 1,691 | 31.89% |
| Bond | 10,978 | 2,854 | 26% |
| Boone | 32,552 | 7,525 | 23.12% |
| Brown | 3,337 | 662 | 19.84% |
| Bureau | 23,661 | 7,446 | 31.47% |
| Calhoun | 3,542 | 905 | 25.55% |
| Carroll | 10,449 | 3,329 | 31.86% |
| Cass | 7,704 | 1,819 | 23.61% |
| Champaign | 119,979 | 31,574 | 26.32% |
| Christian | 20,925 | 4,294 | 20.52% |
| Clark | 11,886 | 4,826 | 40.6% |
| Clay | 8,809 | 2,935 | 33.32% |
| Clinton | 24,486 | 5,462 | 22.31% |
| Coles | 29,515 | 9,238 | 31.3% |
| Cook | 3,043,887 | 938,639 | 30.84% |
| Crawford | 12,328 | 4,239 | 34.39% |
| Cumberland | 7,636 | 3,030 | 39.68% |
| DeKalb | 56,946 | 14,531 | 25.52% |
| DeWitt | 10,885 | 2,773 | 25.48% |
| Douglas | 11,564 | 3,816 | 33% |
| DuPage | 633,638 | 157,671 | 24.88% |
| Edgar | 11,968 | 2,077 | 17.35% |
| Edwards | 4,342 | 1,779 | 40.97% |
| Effingham | 23,564 | 6,023 | 25.56% |
| Fayette | 13,572 | 3,218 | 23.71% |
| Ford | 8,664 | 2,336 | 26.96% |
| Franklin | 28,534 | 5,380 | 18.85% |
| Fulton | 25,423 | 5,349 | 21.04% |
| Gallatin | 3,765 | 1,327 | 35.25% |
| Greene | 8,891 | 1,922 | 21.62% |
| Grundy | 33,916 | 8,070 | 23.79% |
| Hamilton | 5,643 | 1,631 | 28.9% |
| Hancock | 12,244 | 2,562 | 20.92% |
| Hardin | 3,176 | 900 | 28.34% |
| Henderson | 4,847 | 1,278 | 26.37% |
| Henry | 35,896 | 7,645 | 21.3% |
| Iroquois | 17,933 | 4,696 | 26.19% |
| Jackson | 31,777 | 8,683 | 27.32% |
| Jasper | 6,859 | 2,314 | 33.74% |
| Jefferson | 23,547 | 5,680 | 24.12% |
| Jersey | 15,188 | 3,073 | 20.23% |
| Jo Daviess | 15,938 | 3,708 | 23.27% |
| Johnson | 8,834 | 2,448 | 27.71% |
| Kane | 305,679 | 65,419 | 21.4% |
| Kankakee | 67,383 | 11,976 | 17.77% |
| Kendall | 72,920 | 15,883 | 21.78% |
| Knox | 32,995 | 6,517 | 19.75% |
| Lake | 439,860 | 98,944 | 22.49% |
| LaSalle | 69,838 | 16,185 | 23.18% |
| Lawrence | 8,737 | 1,546 | 17.69% |
| Lee | 22,216 | 6,147 | 27.67% |
| Livingston | 21,221 | 6,776 | 31.93% |
| Logan | 18,163 | 5,688 | 31.32% |
| Macon | 74,132 | 16,732 | 22.57% |
| Macoupin | 32,632 | 6,727 | 20.61% |
| Madison | 174,508 | 43,928 | 25.17% |
| Marion | 24,318 | 4,642 | 19.09% |
| Marshall | 8,253 | 2,892 | 35.04% |
| Mason | 9,040 | 2,007 | 22.2% |
| Massac | 10,484 | 3,183 | 30.36% |
| McDonough | 18,905 | 6,078 | 32.15% |
| McHenry | 223,579 | 48,504 | 21.69% |
| McLean | 108,708 | 28,516 | 26.23% |
| Menard | 9,089 | 3,061 | 33.68% |
| Mercer | 12,125 | 2,352 | 19.4% |
| Monroe | 25,313 | 4,012 | 15.85% |
| Montgomery | 15,873 | 5,521 | 34.78% |
| Morgan | 21,747 | 6,244 | 28.71% |
| Moultrie | 8,548 | 2,918 | 34.14% |
| Ogle | 30,493 | 8,468 | 27.77% |
| Peoria | 113,911 | 23,250 | 20.41% |
| Perry | 14,561 | 2,901 | 19.92% |
| Piatt | 12,091 | 5,378 | 44.48% |
| Pike | 10,266 | 2,548 | 24.82% |
| Pope | 2,989 | 823 | 27.53% |
| Pulaski | 4,395 | 1,252 | 28.49% |
| Putnam | 4,269 | 1,181 | 27.66% |
| Randolph | 21,563 | 3,680 | 17.07% |
| Richland | 11,517 | 4,318 | 37.49% |
| Rock Island | 86,055 | 17,265 | 20.06% |
| Saline | 16,361 | 4,578 | 27.98% |
| Sangamon | 131,964 | 31,047 | 23.53% |
| Schuyler | 5,362 | 1,350 | 25.18% |
| Scott | 3,615 | 1,411 | 39.03% |
| Shelby | 14,595 | 4,038 | 27.67% |
| Stark | 4,100 | 1,510 | 36.83% |
| St. Clair | 190,018 | 35,514 | 18.69% |
| Stephenson | 34,036 | 8,488 | 24.94% |
| Tazewell | 89,252 | 24,919 | 27.92% |
| Union | 11,849 | 3,196 | 26.97% |
| Vermilion | 45,711 | 9,999 | 21.87% |
| Wabash | 8,459 | 2,110 | 24.94% |
| Warren | 11,616 | 2,288 | 19.7% |
| Washington | 9,601 | 2,944 | 30.66% |
| Wayne | 12,193 | 3,878 | 31.81% |
| White | 10,218 | 2,557 | 25.02% |
| Whiteside | 37,379 | 8,995 | 24.06% |
| Will | 431,906 | 95,945 | 22.21% |
| Williamson | 44,661 | 9,572 | 21.43% |
| Winnebago | 176,057 | 49,517 | 28.13% |
| Woodford | 25,792 | 8,288 | 32.13% |
| Total | 7,945,074 | 2,103,634 | 26.48% |

#### General election

For the general election, turnout was 57.23%, with 4,635,541 votes cast. The Illinois State Board of Elections reported that this general election turnout rate was the third-highest for a midterm election over the past forty years. The Illinois State Board of Elections also reported that the total number of votes cast set a record high. Voter registration, at 8.1 million, also sat at a record high.
Turnout was considered high in the United States during the 2018 midterm elections, with it being the highest national midterm turnout since 1914.
Turnout by county
| County | Registration | Votes cast | Turnout% |
| Adams | 47,811 | 24,611 | 51.48% |
| Alexander | 5,354 | 2,278 | 42.55% |
| Bond | 11,197 | 6,723 | 60.04% |
| Boone | 33,054 | 18,176 | 54.99% |
| Brown | 3,509 | 1,934 | 55.12% |
| Bureau | 23,847 | 13,840 | 58.04% |
| Calhoun | 3,559 | 2,377 | 66.79% |
| Carroll | 10,682 | 6,039 | 56.53% |
| Cass | 7,774 | 4,683 | 60.24% |
| Champaign | 124,057 | 80,112 | 64.58% |
| Christian | 21,209 | 13,027 | 61.42% |
| Clark | 11,936 | 6,249 | 52.35% |
| Clay | 8,948 | 4,956 | 55.39% |
| Clinton | 24,810 | 14,269 | 57.51% |
| Coles | 30,551 | 17,385 | 56.9% |
| Cook | 3,090,800 | 1,795,518 | 58.09% |
| Crawford | 12,624 | 7,022 | 55.62% |
| Cumberland | 7,712 | 4,400 | 57.05% |
| DeKalb | 60,754 | 36,610 | 60.26% |
| DeWitt | 11,083 | 6,286 | 56.72% |
| Douglas | 11,701 | 6,499 | 55.54% |
| DuPage | 639,752 | 370,249 | 57.87% |
| Edgar | 12,106 | 6,264 | 51.74% |
| Edwards | 4,406 | 2,468 | 56.01% |
| Effingham | 23,873 | 14,621 | 61.24% |
| Fayette | 13,474 | 8,011 | 59.46% |
| Ford | 8,803 | 5,061 | 57.49% |
| Franklin | 28,743 | 15,632 | 54.39% |
| Fulton | 25,576 | 12,727 | 49.76% |
| Gallatin | 3,720 | 2,205 | 59.27% |
| Greene | 8,946 | 4,441 | 49.64% |
| Grundy | 33,041 | 19,646 | 59.46% |
| Hamilton | 5,666 | 3,677 | 64.9% |
| Hancock | 12,431 | 7,143 | 57.46% |
| Hardin | 2,980 | 1,774 | 59.53% |
| Henderson | 4,836 | 2,736 | 56.58% |
| Henry | 34,493 | 19,694 | 57.1% |
| Iroquois | 17,968 | 10,388 | 57.81% |
| Jackson | 39,503 | 20,693 | 52.38% |
| Jasper | 6,882 | 4,577 | 66.51% |
| Jefferson | 24,002 | 14,264 | 59.43% |
| Jersey | 15,544 | 8,905 | 57.29% |
| Jo Daviess | 16,164 | 9,414 | 58.24% |
| Johnson | 8,879 | 5,343 | 60.18% |
| Kane | 314,170 | 172,056 | 54.77% |
| Kankakee | 68,513 | 37,012 | 54.02% |
| Kendall | 78,788 | 45,534 | 57.79% |
| Knox | 33,475 | 18,125 | 54.14% |
| Lake | 448,295 | 254,217 | 56.71% |
| LaSalle | 71,111 | 40,691 | 57.22% |
| Lawrence | 8,830 | 4,410 | 49.94% |
| Lee | 22,496 | 12,742 | 56.64% |
| Livingston | 21,591 | 12,261 | 56.79% |
| Logan | 18,396 | 10,246 | 55.7% |
| Macon | 75,161 | 39,738 | 52.87% |
| Macoupin | 32,151 | 18,458 | 57.41% |
| Madison | 180,511 | 105,432 | 58.41% |
| Marion | 24,747 | 12,786 | 51.67% |
| Marshall | 8,303 | 4,783 | 57.61% |
| Mason | 9,112 | 5,334 | 58.54% |
| Massac | 10,650 | 5,507 | 51.71% |
| McDonough | 18,464 | 10,368 | 56.15% |
| McHenry | 235,593 | 117,838 | 50.02% |
| McLean | 109,316 | 68,087 | 62.28% |
| Menard | 9,172 | 5,519 | 60.17% |
| Mercer | 12,357 | 7,130 | 57.7% |
| Monroe | 26,035 | 15,754 | 60.51% |
| Montgomery | 16,338 | 11,721 | 71.74% |
| Morgan | 22,026 | 11,870 | 53.89% |
| Moultrie | 8,547 | 5,226 | 61.14% |
| Ogle | 32,316 | 19,267 | 59.62% |
| Peoria | 117,449 | 65,865 | 56.08% |
| Perry | 14,475 | 8,672 | 59.91% |
| Piatt | 12,141 | 7,730 | 63.67% |
| Pike | 10,433 | 6,693 | 64.15% |
| Pope | 3,004 | 1,813 | 60.35% |
| Pulaski | 4,434 | 2,488 | 56.11% |
| Putnam | 4,289 | 2,645 | 61.67% |
| Randolph | 21,517 | 12,464 | 57.93% |
| Richland | 11,599 | 6,192 | 53.38% |
| Rock Island | 100,163 | 51,283 | 51.2% |
| Saline | 16,441 | 9,773 | 59.44% |
| Sangamon | 135,830 | 87,193 | 64.19% |
| Schuyler | 5,293 | 3,176 | 60% |
| Scott | 3,470 | 2,098 | 60.46% |
| Shelby | 14,878 | 9,399 | 63.17% |
| Stark | 4,093 | 2,099 | 51.28% |
| St. Clair | 192,407 | 99,849 | 51.89% |
| Stephenson | 34,461 | 16,612 | 48.21% |
| Tazewell | 90,595 | 52,368 | 57.8% |
| Union | 12,098 | 7,693 | 63.59% |
| Vermilion | 49,519 | 23,559 | 47.58% |
| Wabash | 8,004 | 4,056 | 50.67% |
| Warren | 11,612 | 6,177 | 53.19% |
| Washington | 9,777 | 6,205 | 63.47% |
| Wayne | 12,118 | 6,065 | 50.05% |
| White | 10,300 | 6,006 | 58.31% |
| Whiteside | 37,945 | 21,723 | 57.25% |
| Will | 429,647 | 249,682 | 58.11% |
| Williamson | 45,987 | 27,752 | 60.35% |
| Winnebago | 177,945 | 96,765 | 54.38% |
| Woodford | 26,224 | 16,407 | 62.56% |
| Total | 8,099,372 | 4,635,541 | 57.23% |

## Federal elections
### United States House

All of Illinois' 18 seats in the United States House of Representatives were up for election in 2018.
The Democratic Party flipped two Republican-held seats, making the composition of Illinois' House delegation 13 Democrats and five Republicans.

## Governor and lieutenant governor

Incumbent Republican Governor Bruce Rauner ran for re-election to a second term, but was defeated by Democratic venture capitalist and billionaire J. B. Pritzker.

### Democratic primary

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | JB Pritzker | 597,756 | 45.1 |
| | Democratic | Daniel Biss | 353,625 | 26.7 |
| | Democratic | Chris Kennedy | 322,730 | 24.4 |
| | Democratic | Tio Hardiman | 21,075 | 1.6 |
| | Democratic | Bob Daiber | 15,009 | 1.1 |
| | Democratic | Robert Marshall | 14,353 | 1.1 |
| Total votes | Total votes | Total votes | 1,324,548 | 100.0 |

### Republican primary

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Bruce Rauner (incumbent) | 372,124 | 51.5 |
| | Republican | Jeanne Ives | 350,038 | 48.5 |
| Total votes | Total votes | Total votes | 722,162 | 100.0 |

### General election

Illinois gubernatorial election, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | JB Pritzker/Juliana Stratton | 2,479,746 | 54.5 |
| | Republican | Bruce Rauner/Evelyn Sanguinetti (incumbent) | 1,765,751 | 38.8 |
| | Conservative | Sam McCann/Aaron Merreighn | 192,527 | 4.2 |
| | Libertarian | Kash Jackson/Sanj Mohip | 109,518 | 2.4 |
| | Write-in | Write-in | 115 | 0.0 |
| Total votes | Total votes | Total votes | 4,547,657 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

## Attorney general

Incumbent Democratic attorney general Lisa Madigan, who had served since 2003, chose not to run for re-election to a fifth term. Democratic state Senator Kwame Raoul defeated Republican Erika Harold.

### Democratic primary

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Kwame Raoul | 390,472 | 30.2 |
| | Democratic | Pat Quinn | 352,425 | 27.2 |
| | Democratic | Sharon Fairley | 164,304 | 12.7 |
| | Democratic | Nancy Rotering | 123,446 | 9.5 |
| | Democratic | Scott Drury | 102,193 | 7.9 |
| | Democratic | Jesse Ruiz | 70,158 | 5.4 |
| | Democratic | Renato Mariotti | 51,902 | 4.0 |
| | Democratic | Aaron Goldstein | 39,196 | 3.0 |
| Total votes | Total votes | Total votes | 1,294,096 | 100.0 |

### Republican primary

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Erika Harold | 389,197 | 59.2 |
| | Republican | Gary Grasso | 268,688 | 40.8 |
| Total votes | Total votes | Total votes | 657,885 | 100.0 |

### General election

Illinois Attorney General election, 2018 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Kwame Raoul | 2,488,326 | 54.7 |
| | Republican | Erika Harold | 1,944,142 | 42.7 |
| | Libertarian | Bubba Harsy | 115,941 | 2.6 |
| Total votes | Total votes | Total votes | 4,548,409 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## Secretary of state

Incumbent Democratic secretary of state Jesse White, who had been in office since 1999, initially announced in August 2015 that he would retire. On August 17, 2017, White reversed this decision and announced that he would run for re-election to a sixth term. Governing magazine projected the race as "safe Democratic".

### Democratic primary
#### Candidates
##### Declared

* Jesse White, incumbent secretary of state

##### Withdrew

* Mike Hastings, state senator

##### Declined

* Walter Burnett Jr., alderman for Chicago's 27th ward

#### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Jesse White (incumbent) | 1,209,978 | 100.0 |
| Total votes | Total votes | Total votes | 1,209,978 | 100.0 |

### Republican primary
#### Candidates
##### Declared

* Jason Helland, Grundy County State's Attorney

##### Declined

* J.C. Griffin, Iraq War veteran

#### Results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Jason Helland | 609,190 | 100.0 |
| Total votes | Total votes | Total votes | 609,190 | 100.0 |

#### Endorsements
##### Newspapers

* State Journal Register

##### Newspapers

* Daily Herald

##### Newspapers

* Chicago Sun-Times
* Chicago Tribune

### General election
#### Results

Illinois Secretary of State election, 2018 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Jesse White (incumbent) | 3,120,207 | 68.26% | +2.56% |
| | Republican | Jason Helland | 1,336,079 | 29.23% | −2.16% |
| | Libertarian | Steve Dutner | 114,556 | 2.51% | −0.38% |
| Total votes | Total votes | Total votes | 4,570,842 | 100.0% | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## Comptroller

Incumbent Republican Judy Baar Topinka died on December 10, 2014, after being re-elected to a second term in office. A special election was held in 2016 for the remainder of the term, with Democratic City Clerk of Chicago Susana Mendoza defeating appointed Republican Comptroller Leslie Munger. Mendoza won a full term.

### Democratic primary
#### Candidates
##### Declared

* Susana Mendoza, incumbent Illinois Comptroller

#### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Susana Mendoza (incumbent) | 1,147,095 | 100.0 |
| Total votes | Total votes | Total votes | 1,147,095 | 100.0 |

### Republican primary
#### Candidates
##### Declared

* Darlene Senger, former state representative and nominee for Illinois's 11th congressional district in 2014

#### Results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Darlene Senger | 607,187 | 100.0 |
| Total votes | Total votes | Total votes | 607,187 | 100.0 |

### Third parties and independents
#### Candidates
##### Declared

* Claire Ball (Libertarian), certified public accountant

### General election
#### Results

Illinois State Comptroller election, 2018 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Susana Mendoza (incumbent) | 2,716,853 | 59.90% | +10.45% |
| | Republican | Darlene Senger | 1,678,346 | 37.00% | −7.43% |
| | Libertarian | Claire Ball | 140,543 | 3.10% | −0.36% |
| | Write-in | Write-in | 17 | 0.00% | N/A |
| Total votes | Total votes | Total votes | 4,535,759 | 100.0% | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## Treasurer
### Democratic primary
#### Candidates
##### Declared

* Mike Frerichs, incumbent state treasurer

#### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Mike Frerichs (incumbent) | 1,087,950 | 100.0 |
| Total votes | Total votes | Total votes | 1,087,950 | 100.0 |

### Republican primary
#### Candidates
##### Declared

* Jim Dodge, Orland Park Village trustee and candidate for Illinois Comptroller in 2010

#### Results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Jim Dodge | 602,626 | 100.0 |
| Total votes | Total votes | Total votes | 602,626 | 100.0 |

### General election
#### Results

Illinois State Treasurer election, 2018 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Mike Frerichs (incumbent) | 2,593,816 | 57.64% | +9.59% |
| | Republican | Jim Dodge | 1,750,897 | 38.91% | −8.88% |
| | Libertarian | Mike Leheney | 155,256 | 3.45% | −0.71% |
| | Write-in | Write-in | 2 | 0.0% | N/A |
| Total votes | Total votes | Total votes | 4,499,971 | 100.0% | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## State senate

One-third of the seats of the Illinois Senate were up for election in 2018.

## State House of Representatives

All of the seats in the Illinois House of Representatives were up for election in 2018.

## Judicial elections

Judicial elections were held, consisting of both partisan and retention elections, including those for one seat in the Supreme Court of Illinois and five seats in the Illinois Appellate Court.

## Local elections

Local elections took place, including county elections such as the Cook County elections.