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Voting history · Illinois's 3rd Congressional District

Illinois's 3rd Congressional District

A dated list of changes to how Americans vote: district maps, polling places and drop boxes, voting laws and rules, and courts and election officials. Each entry says who did what and when, shows what became of it, and links to the page it rests on. Attempts that failed are listed as failed. Entries that rest on a news report name the outlet.

This is the district view: events tagged to this congressional district, then events that apply across Illinois, then national events. An event is tagged to a district only when its source names that congressional district. See all of Illinois.

Kind of event
Decade

In Illinois's 3rd Congressional District

2021

  1. Nov 23, 2021 State Maps and lines Enacted

    Governor Pritzker signs the 2021 congressional map, reducing Illinois to 17 seats

    WGLT reported that Governor Pritzker signed the Illinois congressional redistricting map into law on Tuesday, November 23, 2021; that Illinois would have 17 seats after the 2022 elections, one fewer than before; that the map combined the 12th and 15th Districts into a new 12th; and that it created a new largely Latino 3rd District.

    Congressional districts named: IL-3, IL-12, IL-15

    Source last checked Oct 22, 2026

Across Illinois

2021

  1. Sep 24, 2021 State Maps and lines Enacted

    Governor signs revised legislative maps (SB 927) after the 2020 census release

    The General Assembly passed SB 927 on August 31, 2021, redrawing House and Senate districts with official 2020 census data, and the Governor approved it on September 24, 2021 (Public Act 102-0663), according to a federal court opinion.

    Related: Governor signs June 2021 legislative maps drawn from American Community Survey data · Three-judge court rules for the State on challenges to the September 2021 legislative map

    Source last checked Oct 23, 2026

  2. Jun 4, 2021 State Maps and lines Struck down

    Governor signs June 2021 legislative maps drawn from American Community Survey data

    A federal court opinion records that because the Census Bureau had not released data in spring 2021, the General Assembly drew House and Senate districts from American Community Survey estimates, and the Governor signed the plans (Public Act 102-0010) on June 4, 2021. The later census release revealed malapportionment, and the court entered judgment for the McConchie and Contreras plaintiffs on their one-person, one-vote claims against the June map.

    Related: Governor signs revised legislative maps (SB 927) after the 2020 census release · Three-judge court rules for the State on challenges to the September 2021 legislative map

    Source last checked Oct 23, 2026

2011

  1. Jun 24, 2011 State Maps and lines Enacted

    Illinois enacts the Congressional Redistricting Act of 2011

    A federal court opinion records that the Illinois Congressional Redistricting Act of 2011 (P.A. 97-14), which became law on June 24, 2011, adopted a map for the eighteen remaining congressional districts after Illinois lost one seat in the 2010 census. The Illinois House passed it on May 30 and the Senate on May 31, 2011.

    Related: Three-judge court enters judgment for the State on challenges to the 2011 congressional map

    Source last checked Oct 31, 2026

1992

  1. Jan 14, 1992 State Maps and lines Upheld

    Illinois Supreme Court approves the Commission's "Jourdan III-A" legislative map

    On January 14, 1992, after the Commission held expedited hearings on remand and adopted a new plan, the Illinois Supreme Court wrote in People ex rel. Burris v. Ryan: "we hold that the Jourdan III-A map is valid," and ordered the State Board of Elections to establish district boundaries in accordance with it. The court found the Commission's map met the four requirements it had applied, including compactness. Three justices dissented in separate opinions, and Chief Justice Miller and Justice Heiple concurred, Miller writing that he would uphold the plan because it satisfied all applicable requirements.

    Related: Illinois Supreme Court sends the 1991 legislative redistricting plan back to the Commission

    Source last checked Oct 21, 2026

1991

  1. Nov 6, 1991 State Maps and lines Decided by a court

    Federal court enjoins Illinois' existing congressional map and orders the Hastert plaintiffs' plan into effect

    The Seventh Circuit's later opinion records that the Illinois Republican congressional delegation filed suit on June 27, 1991, over the existing congressional districts after the 1990 census, and that on November 6, 1991 the three-judge district court enjoined the Board of Elections from using the existing plan and ordered the plan proposed by the Hastert plaintiffs into effect (Hastert v. State Board of Elections, 777 F. Supp. 634). The Seventh Circuit noted that the Nieves plaintiffs' map created Illinois' first Hispanic majority congressional district.

    Source last checked Oct 31, 2026

Nationwide

2026

  1. Sep 10, 2026 National Maps and lines Proposed

    Census Bureau proposes residence criteria for the 2030 census that would exclude some noncitizens from the apportionment count

    On September 10, 2026 the Census Bureau, an agency of the Department of Commerce, published a proposed rule in the Federal Register (91 FR 57524, Docket No. 260903-0005, RIN 0607-AA75) that would add two new parts to the Code of Federal Regulations: residence criteria for the decennial census, and standards and restrictions for demographic questions on the census questionnaire. On residence, the notice states that "the Census Bureau proposes to include lawful permanent residents within the apportionment base, while excluding from the apportionment base illegal aliens and aliens whose legal status is less durable and indefinite in length than lawful permanent resident status," and says it is considering using administrative records to determine legal status. The comment period, first set to end October 13, 2026, was extended to November 2, 2026 by a notice published October 5, 2026. Al Jazeera and CNBC reported on the proposal, and CNBC reported that opponents expect litigation.

    Source last checked Oct 22, 2026

2021

  1. Aug 12, 2021 National Maps and lines Settled

    Census Bureau releases 2020 redistricting data for states

    On August 12, 2021, the Census Bureau released the 2020 Census Redistricting Data (Public Law 94-171) Summary File, which it described as delivering data for states to begin redistricting. On September 16, 2021, it released the same data in an easier-to-use format on data.census.gov and delivered a toolkit to states.

    Source last checked Oct 22, 2026

  2. Apr 26, 2021 National Maps and lines Settled

    Census Bureau announces 2020 Census apportionment results

    On April 26, 2021, the Census Bureau announced that the 2020 Census resident population of the United States on April 1, 2020 was 331,449,281, and that Commerce Secretary Gina Raimondo delivered the population counts used for apportionment of the U.S. House to the President.

    Source last checked Oct 29, 2026

1967

  1. Dec 14, 1967 National Maps and lines Enacted

    Congress requires single-member congressional districts (Public Law 90-196)

    Public Law 90-196, approved December 14, 1967, provides that in each state entitled to more than one Representative "there shall be established by law a number of districts equal to the number of Representatives to which such State is so entitled," with "no district to elect more than one Representative."

    Source last checked Oct 20, 2026

How this timeline is built

Every entry rests on at least one source that was opened and read, and that source states the date and the fact. Courts, legislatures, election offices, the Justice Department, the Census Bureau, the Federal Register and Congress.gov come first. A news report is used only when no official page states the fact, and it is labeled with the outlet's name. Encyclopedias are not used as sources. History starts in 1965 with the Voting Rights Act. County names come from the Census Bureau's 2024 Gazetteer. Congressional district numbers are those in use for the 2026 election; an event is tagged to a district only when its source names that congressional district.

When a later event changes an earlier one, such as a law later struck down, both entries are listed and point to each other. This page does not predict outcomes or say which party a change helps. U.S. House maps for 2026 · Back to the 2026 voting center.