The Illinois Congressional District Map is a vital component of the state's political landscape, shaping the representation of its citizens in the U.S. House of Representatives. With 18 congressional districts, each representing approximately 761,169 people, the map plays a crucial role in determining the balance of power in Congress. As of the 2020 United States Census, Illinois has lost one congressional seat, reducing its total from 19 to 18, which has significant implications for the state's political influence.
History and Evolution of the Illinois Congressional District Map

The Illinois Congressional District Map has undergone numerous changes since its inception, with each iteration reflecting the state’s shifting demographics, population growth, and partisan politics. The map is redrawn every decade following the U.S. Census to ensure that each district has roughly the same population. This process, known as redistricting, is often a contentious issue, with different parties and interest groups vying for influence over the map’s configuration. For instance, the 2010 redistricting process led to the creation of the current 18-district map, which has been in effect since the 2012 elections.
Redistricting Process and Its Impact on the Map
The redistricting process in Illinois is a complex and multifaceted issue, involving the Illinois General Assembly, the Governor, and various stakeholders. The process typically begins with the release of the U.S. Census data, which provides the foundation for the map’s configuration. The Illinois General Assembly then drafts and passes a redistricting plan, which must be signed into law by the Governor. However, this process is often contentious, with different parties and interest groups seeking to influence the map’s configuration. For example, the 2020 redistricting process was marked by significant controversy, with allegations of gerrymandering and partisan manipulation.
| District Number | Representative | Party Affiliation |
|---|---|---|
| 1st | Bobby Rush | Democratic |
| 2nd | Robin Kelly | Democratic |
| 3rd | Marie Newman | Democratic |
| 4th | Chuy García | Democratic |
| 5th | Mike Quigley | Democratic |
| 6th | Sean Casten | Democratic |
| 7th | Danny Davis | Democratic |
| 8th | Raja Krishnamoorthi | Democratic |
| 9th | Jan Schakowsky | Democratic |
| 10th | Brad Schneider | Democratic |
| 11th | Bill Foster | Democratic |
| 12th | Mike Bost | Republican |
| 13th | Nikki Budzinski | Democratic |
| 14th | Lauren Underwood | Democratic |
| 15th | Mary Miller | Republican |
| 16th | Darren Bailey | Republican |
| 17th | Eric Sorensen | Democratic |
| 18th | Darin LaHood | Republican |

Key Points
- The Illinois Congressional District Map consists of 18 districts, each representing approximately 761,169 people.
- The map is redrawn every decade following the U.S. Census to ensure that each district has roughly the same population.
- The redistricting process in Illinois is a complex and multifaceted issue, involving the Illinois General Assembly, the Governor, and various stakeholders.
- The 2020 redistricting process was marked by significant controversy, with allegations of gerrymandering and partisan manipulation.
- The Illinois Congressional District Map plays a critical role in determining the balance of power in Congress, with significant implications for the state's political influence.
Impact of the Illinois Congressional District Map on the State’s Politics

The Illinois Congressional District Map has a significant impact on the state’s politics, with the configuration of the districts influencing the representation of its citizens in the U.S. House of Representatives. The map’s configuration can affect the balance of power in Congress, with different parties and interest groups seeking to influence the map’s configuration. For instance, the current map has led to a Democratic majority in the state’s congressional delegation, with 14 Democrats and 4 Republicans representing the state in the U.S. House of Representatives.
Partisan Politics and the Illinois Congressional District Map
The Illinois Congressional District Map is often a contentious issue, with different parties and interest groups vying for influence over the map’s configuration. The map’s configuration can affect the balance of power in Congress, with different parties seeking to manipulate the map to their advantage. For example, the Democratic Party has historically sought to create districts that favor their candidates, while the Republican Party has sought to create districts that favor their candidates. This partisan manipulation can lead to allegations of gerrymandering, which can have significant implications for the state’s political influence.
What is the purpose of the Illinois Congressional District Map?
+The purpose of the Illinois Congressional District Map is to ensure that each district has roughly the same population, with the goal of providing equal representation for all citizens in the U.S. House of Representatives.
How is the Illinois Congressional District Map created?
+The Illinois Congressional District Map is created through a process known as redistricting, which involves the Illinois General Assembly, the Governor, and various stakeholders. The process typically begins with the release of the U.S. Census data, which provides the foundation for the map's configuration.
What are the implications of the Illinois Congressional District Map for the state's politics?
+The Illinois Congressional District Map has significant implications for the state's politics, with the configuration of the districts influencing the representation of its citizens in the U.S. House of Representatives. The map's configuration can affect the balance of power in Congress, with different parties and interest groups seeking to influence the map's configuration.
In conclusion, the Illinois Congressional District Map is a critical component of the state’s political landscape, with significant implications for the representation of its citizens in the U.S. House of Representatives. As the map continues to evolve, it is essential to understand the complexities of the redistricting process and its impact on the state’s political influence. By examining the history and evolution of the map, as well as its impact on the state’s politics, we can gain a deeper understanding of the complexities of the Illinois Congressional District Map and its role in shaping the state’s future.