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Illinois' 6th Congressional District

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Illinois' 6th Congressional District
Incumbent
Assumed office: January 3, 2019

Illinois' 6th Congressional District in the United States House of Representatives is represented by Sean Casten (D).

As of the 2020 Census, Illinois representatives represented an average of 754,279 residents. After the 2010 Census, each member represented 714,688 residents.

Elections

2024

See also: Illinois' 6th Congressional District election, 2024

Illinois' 6th Congressional District election, 2024 (March 19 Democratic primary)

Illinois' 6th Congressional District election, 2024 (March 19 Republican primary)

General election

General election for U.S. House Illinois District 6

Incumbent Sean Casten defeated Niki Conforti and Peter Meyer Jr. in the general election for U.S. House Illinois District 6 on November 5, 2024.

Candidate
%
Votes
Image of Sean Casten
Sean Casten (D) Candidate Connection
 
54.2
 
196,647
Image of Niki Conforti
Niki Conforti (R)
 
45.8
 
166,116
Peter Meyer Jr. (Independent) (Write-in)
 
0.0
 
86

Total votes: 362,849
Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.
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Democratic primary election

Democratic primary for U.S. House Illinois District 6

Incumbent Sean Casten defeated Mahnoor Ahmad and Charles Hughes in the Democratic primary for U.S. House Illinois District 6 on March 19, 2024.

Candidate
%
Votes
Image of Sean Casten
Sean Casten Candidate Connection
 
77.1
 
56,750
Image of Mahnoor Ahmad
Mahnoor Ahmad Candidate Connection
 
14.2
 
10,483
Image of Charles Hughes
Charles Hughes
 
8.6
 
6,366

Total votes: 73,599
Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.
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Republican primary election

Republican primary for U.S. House Illinois District 6

Niki Conforti advanced from the Republican primary for U.S. House Illinois District 6 on March 19, 2024.

Candidate
%
Votes
Image of Niki Conforti
Niki Conforti
 
100.0
 
30,543

Total votes: 30,543
Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.
If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey.

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2022

See also: Illinois' 6th Congressional District election, 2022

General election

General election for U.S. House Illinois District 6

Incumbent Sean Casten defeated Keith Pekau and Arthur Jones in the general election for U.S. House Illinois District 6 on November 8, 2022.

Candidate
%
Votes
Image of Sean Casten
Sean Casten (D)
 
54.4
 
150,496
Image of Keith Pekau
Keith Pekau (R)
 
45.6
 
126,351
Image of Arthur Jones
Arthur Jones (Independent) (Write-in)
 
0.0
 
12

Total votes: 276,859
Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.
If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey.

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Democratic primary election

Democratic primary for U.S. House Illinois District 6

Incumbent Sean Casten defeated incumbent Marie Newman and Charles Hughes in the Democratic primary for U.S. House Illinois District 6 on June 28, 2022.

Candidate
%
Votes
Image of Sean Casten
Sean Casten
 
67.7
 
45,654
Image of Marie Newman
Marie Newman
 
29.2
 
19,726
Image of Charles Hughes
Charles Hughes
 
3.1
 
2,085

Total votes: 67,465
Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.
If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey.

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Republican primary election

Republican primary for U.S. House Illinois District 6

The following candidates ran in the Republican primary for U.S. House Illinois District 6 on June 28, 2022.

Candidate
%
Votes
Image of Keith Pekau
Keith Pekau
 
38.7
 
20,178
Image of Gary Grasso
Gary Grasso Candidate Connection
 
27.2
 
14,150
Image of Niki Conforti
Niki Conforti Candidate Connection
 
11.4
 
5,947
Image of Catherine A. O'Shea
Catherine A. O'Shea
 
10.1
 
5,243
Image of Scott Kaspar
Scott Kaspar Candidate Connection
 
6.9
 
3,573
Image of Rob Cruz
Rob Cruz Candidate Connection
 
5.8
 
3,003

Total votes: 52,094
Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.
If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey.

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Withdrawn or disqualified candidates

2020

See also: Illinois' 6th Congressional District election, 2020

General election

General election for U.S. House Illinois District 6

Incumbent Sean Casten defeated Jeanne M. Ives and Bill Redpath in the general election for U.S. House Illinois District 6 on November 3, 2020.

Candidate
%
Votes
Image of Sean Casten
Sean Casten (D)
 
52.8
 
213,777
Image of Jeanne M. Ives
Jeanne M. Ives (R)
 
45.4
 
183,891
Image of Bill Redpath
Bill Redpath (L) Candidate Connection
 
1.7
 
7,079

Total votes: 404,747
Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.
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Watch the Candidate Conversation for this race!

Democratic primary election

Democratic primary for U.S. House Illinois District 6

Incumbent Sean Casten advanced from the Democratic primary for U.S. House Illinois District 6 on March 17, 2020.

Candidate
%
Votes
Image of Sean Casten
Sean Casten
 
100.0
 
82,909

Total votes: 82,909
Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.
If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey.

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Withdrawn or disqualified candidates

Republican primary election

Republican primary for U.S. House Illinois District 6

Jeanne M. Ives defeated Gordon Kinzler and Richard Mayers in the Republican primary for U.S. House Illinois District 6 on March 17, 2020.

Candidate
%
Votes
Image of Jeanne M. Ives
Jeanne M. Ives
 
70.8
 
29,144
Image of Gordon Kinzler
Gordon Kinzler
 
29.2
 
12,017
Richard Mayers (Write-in)
 
0.0
 
1

Total votes: 41,162
Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.
If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey.

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Withdrawn or disqualified candidates

2018

See also: Illinois' 6th Congressional District election, 2018

General election

General election for U.S. House Illinois District 6

Sean Casten defeated incumbent Peter J. Roskam in the general election for U.S. House Illinois District 6 on November 6, 2018.

Candidate
%
Votes
Image of Sean Casten
Sean Casten (D)
 
53.6
 
169,001
Image of Peter J. Roskam
Peter J. Roskam (R)
 
46.4
 
146,445

Total votes: 315,446
(100.00% precincts reporting)
Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.
If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey.

Do you want a spreadsheet of this type of data? Contact our sales team.

Democratic primary election

Democratic primary for U.S. House Illinois District 6

The following candidates ran in the Democratic primary for U.S. House Illinois District 6 on March 20, 2018.

Candidate
%
Votes
Image of Sean Casten
Sean Casten
 
29.5
 
19,774
Image of Kelly Mazeski
Kelly Mazeski
 
26.8
 
17,984
Image of Carole Cheney
Carole Cheney
 
17.4
 
11,663
Image of Amanda Howland
Amanda Howland
 
12.7
 
8,483
Image of Becky Anderson Wilkins
Becky Anderson Wilkins
 
6.0
 
4,001
Image of Jennifer Zordani
Jennifer Zordani
 
4.1
 
2,743
Image of Ryan Huffman
Ryan Huffman
 
3.5
 
2,365

Total votes: 67,013
Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.
If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey.

Do you want a spreadsheet of this type of data? Contact our sales team.

Republican primary election

Republican primary for U.S. House Illinois District 6

Incumbent Peter J. Roskam advanced from the Republican primary for U.S. House Illinois District 6 on March 20, 2018.

Candidate
%
Votes
Image of Peter J. Roskam
Peter J. Roskam
 
100.0
 
56,544

Total votes: 56,544
Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.
If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey.

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2016

See also: Illinois' 6th Congressional District election, 2016

Heading into the election, Ballotpedia rated this race as safely Republican. Incumbent Peter Roskam (R) defeated Amanda Howland (D) in the general election on November 8, 2016. Roskam defeated Gordon Kinzler in the Republican primary on March 15, 2016, while Howland defeated Robert Marshall to win the Democratic nomination.[1][2]

U.S. House, Illinois District 6 General Election, 2016
Party Candidate Vote % Votes
     Republican Green check mark transparent.pngPeter Roskam Incumbent 59.2% 208,555
     Democratic Amanda Howland 40.8% 143,591
Total Votes 352,146
Source: Illinois State Board of Elections


U.S. House, Illinois District 6 Democratic Primary, 2016
Candidate Vote % Votes
Green check mark transparent.pngAmanda Howland 67.1% 51,101
Robert Marshall 32.9% 25,027
Total Votes 76,128
Source: Illinois State Board of Elections
U.S. House, Illinois District 6 Republican Primary, 2016
Candidate Vote % Votes
Green check mark transparent.pngPeter Roskam Incumbent 68.8% 83,344
Gordon Kinzler 31.2% 37,834
Total Votes 121,178
Source: Illinois State Board of Elections

2014

See also: Illinois' 6th Congressional District elections, 2014

The 6th Congressional District of Illinois held an election for the U.S. House of Representatives on November 4, 2014. Incumbent Peter Roskam (R) defeated challenger Michael Mason (D) in the general election.

U.S. House, Illinois District 6 General Election, 2014
Party Candidate Vote % Votes
     Republican Green check mark transparent.pngPeter Roskam Incumbent 67.1% 160,278
     Democratic Michael Mason 32.9% 78,465
Total Votes 238,743
Source: Illinois State Board of Elections Official Results

General election candidates


March 18, 2014, primary results

Republican Party Republican Primary

Democratic Party Democratic Primary


2012

See also: Illinois' 6th Congressional District elections, 2012

The 6th Congressional District of Illinois held an election for the U.S. House of Representatives on November 6, 2012. Incumbent Peter Roskam was re-elected in the district.[4]

U.S. House, Illinois District 6 General Election, 2012
Party Candidate Vote % Votes
     Republican Green check mark transparent.pngPeter Roskam Incumbent 59.2% 193,138
     Democratic Leslie Coolidge 40.8% 132,991
Total Votes 326,129
Source: Illinois Board of Elections "2012 General Election Official Vote Totals"

2010
On November 2, 2010, Peter Roskam won re-election to the United States House. He defeated Benjamin S. Lowe (D) in the general election.[5]

U.S. House, Illinois District 6 General Election, 2010
Party Candidate Vote % Votes
     Republican Green check mark transparent.pngPeter Roskam incumbent 63.6% 114,456
     Democratic Benjamin S. Lowe 36.4% 65,379
Total Votes 179,835


2008
On November 4, 2008, Peter Roskam won re-election to the United States House. He defeated Jill Morgenthaler (D) in the general election.[6]

U.S. House, Illinois District 6 General Election, 2008
Party Candidate Vote % Votes
     Republican Green check mark transparent.pngPeter Roskam incumbent 57.6% 147,906
     Democratic Jill Morgenthaler 42.4% 109,007
Total Votes 256,913


2006
On November 7, 2006, Peter Roskam won election to the United States House. He defeated Tammy Duckworth (D) in the general election.[7]

U.S. House, Illinois District 6 General Election, 2006
Party Candidate Vote % Votes
     Republican Green check mark transparent.pngPeter Roskam 51.4% 91,382
     Democratic Tammy Duckworth 48.6% 86,572
     N/A Write-in 0% 3
Total Votes 177,957


2004
On November 2, 2004, Henry J. Hyde won re-election to the United States House. He defeated Christine Cegelis (D) in the general election.[8]

U.S. House, Illinois District 6 General Election, 2004
Party Candidate Vote % Votes
     Republican Green check mark transparent.pngHenry J. Hyde incumbent 55.8% 139,627
     Democratic Christine Ceglis 44.2% 110,470
Total Votes 250,097


2002
On November 5, 2002, Henry J. Hyde won re-election to the United States House. He defeated Tom Berry (D) in the general election.[9]

U.S. House, Illinois District 6 General Election, 2002
Party Candidate Vote % Votes
     Republican Green check mark transparent.pngHenry J. Hyde incumbent 65.1% 113,174
     Democratic Tom Berry 34.9% 60,698
Total Votes 173,872


2000
On November 7, 2000, Henry J. Hyde won re-election to the United States House. He defeated Brent Christensen (D) in the general election.[10]

U.S. House, Illinois District 6 General Election, 2000
Party Candidate Vote % Votes
     Republican Green check mark transparent.pngHenry J. Hyde incumbent 58.9% 133,327
     Democratic Brent Christensen 41.1% 92,880
Total Votes 226,207


District map

Redistricting

2020-2021

See also: Redistricting in Illinois after the 2020 census

Illinois enacted a congressional map on November 24, 2021, after Gov. J.B. Pritzker (D) signed the proposal into law.[11] The Illinois State Senate voted 41-18 in favor of the map on October 28, 2021, followed by the Illinois House of Representatives voting 71-43 in favor on October 29, 2021.[12]

How does redistricting in Illinois work? The Illinois General Assembly is responsible for drawing both congressional and state legislative district lines. Both chambers of the state legislature must approve a redistricting plan. The governor may veto the lines drawn by the state legislature.[13]

In the event that both chambers of the state legislature do not approve a legislative redistricting plan, a backup commission must draw the lines. The majority and minority leaders of each chamber must appoint two members each to the commission (one legislator and one general citizen). Of the eight commission members, no more than four may belong to the same political party. In the event that these eight members cannot approve a plan, the Illinois Supreme Court must select two individuals (from different political parties) as potential tiebreakers. The secretary of state must then appoint one of these individuals to the backup commission to break the tie.[13]

The Illinois Constitution requires that state legislative districts be "contiguous and reasonably compact." There are no such requirements in place for the state's congressional districts.[13]

State law also mandates the establishment of state legislative districts "that allow racial or language minority communities to elect--or influence the election of--the candidates of their choice, even if no comparable district would be required by the federal Voting Rights Act."[13]

Illinois District 6
until January 2, 2023

Click a district to compare boundaries.

Illinois District 6
starting January 3, 2023

Click a district to compare boundaries.

2010-2011

This is the 6th Congressional District of Illinois after the 2001 redistricting process.
See also: Redistricting in Illinois after the 2010 census

In 2011, the Illinois State Legislature re-drew the congressional districts based on updated population information from the 2010 census.

District analysis

See also: The Cook Political Report's Partisan Voter Index
See also: FiveThirtyEight's elasticity scores

2026

Heading into the 2026 elections, based on results from the 2024 and 2020 presidential elections, the Cook Partisan Voter Index for this district is D+3. This meant that in those two presidential elections, this district's results were 3 percentage points more Democratic than the national average. This made Illinois' 6th the 178th most Democratic district nationally.[14]

2024

Heading into the 2024 elections, based on results from the 2020 and 2016 presidential elections, the Cook Partisan Voter Index for this district was D+3. This meant that in those two presidential elections, this district's results were 3 percentage points more Democratic than the national average. This made Illinois' 6th the 182nd most Democratic district nationally.[15]

Daily Kos calculated what the results of the 2020 presidential election in this district would have been following redistricting. Joe Biden (D) would have defeated Donald Trump (R) 54.5%-43.6%.[16]

2022

Heading into the 2022 elections, based on results from the 2020 and 2016 presidential elections, the Cook Partisan Voter Index for this district was D+3. This meant that in those two presidential elections, this district's results were 3 percentage points more Democratic than the national average. This made Illinois' 6th the 182nd most Democratic district nationally.[17]

Daily Kos calculated what the results of the 2020 presidential election in this district would have been following redistricting. Joe Biden (D) would have received 54.5% of the vote in this district and Donald Trump (R) would have received 43.6%.[18]

2018

Heading into the 2018 elections, based on results from the 2016 and 2012 presidential elections, the Cook Partisan Voter Index for this district was R+2. This meant that in those two presidential elections, this district's results were 2 percentage points more Republican than the national average. This made Illinois' 6th Congressional District the 222nd most Republican nationally.[19]

FiveThirtyEight's September 2018 elasticity score for states and congressional districts measured "how sensitive it is to changes in the national political environment." This district's elasticity score was 1.02. This means that for every 1 point the national political mood moved toward a party, the district was expected to move 1.02 points toward that party.[20]

See also

External links

Footnotes

  1. Illinois State Board of Elections, "Candidate List," accessed November 30, 2015
  2. The New York Times, "Illinois Primary Results," March 15, 2016
  3. Illinois Election Division, "Michael Mason," accessed December 2, 2013
  4. Politico, "2012 Election Map, Illinois"
  5. U.S. Congress House Clerk, "Statistics of the Congressional Election of November 2, 2010," accessed March 28, 2013
  6. U.S. Congress House Clerk, "Statistics of the Congressional Election of November 4, 2008," accessed March 28, 2013
  7. U.S. Congress House Clerk, "Statistics of the Congressional Election of November 7, 2006," accessed March 28, 2013
  8. U.S. Congress House Clerk, "Statistics of the Congressional Election of November 2, 2004," accessed March 28, 2013
  9. U.S. Congress House Clerk, "Statistics of the Congressional Election of November 5, 2002," accessed March 28, 2013
  10. U.S. Congress House Clerk, "Statistics of the Congressional Election of November 7, 2000," accessed March 28, 2013
  11. The Associated Press, "Gov. Pritzker signs new Illinois congressional map into law," Nov. 24, 2021
  12. Chicago Tribune, "Fourth version of a Democratic-drawn congressional map passed by legislators, heads to Pritzker," Oct. 29, 2021
  13. 13.0 13.1 13.2 13.3 All About Redistricting, "Illinois," accessed April 16, 2015
  14. Cook Political Report, "2025 Cook PVI℠: District Map and List (119th Congress)," accessed July 1, 2025
  15. Cook Political Report, "The 2022 Cook Partisan Voting Index (Cook PVI℠)," accessed January 10, 2024
  16. Daily Kos, "Daily Kos Elections' 2020 presidential results by congressional district, for new and old districts," accessed September 15, 2022
  17. Cook Political Report, "The 2022 Cook Partisan Voting Index (Cook PVI℠)," accessed February 6, 2023
  18. Daily Kos, "Daily Kos Elections' 2020 presidential results by congressional district, for new and old districts," accessed September 15, 2022
  19. Cook Political Report, "Introducing the 2017 Cook Political Report Partisan Voter Index," April 7, 2017
  20. FiveThirtyEight, "Election Update: The Most (And Least) Elastic States And Districts," September 6, 2018


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