David Orr, Cook County Clerk

Map Room

2012 County Board Commissioner Districts

Maps marked below have been updated for the March 2012 Presidential Primary based on the 2010 U.S. Census as passed by the General Assembly and signed into law by the Governor.

The Cook County Clerk’s office produces a plethora of maps pertaining to elections and taxing districts. All of our available maps are posted here as PDFs (Adobe Acrobat may be required.)

If you are looking for your polling location or your elected officials, please use the Your Voter Information tool.

Property tax maps that show the boundaries of each parcel are available for purchase through the Clerk's map department.

Congressional District Maps

Congressional District Maps Updated!

The boundaries of 11 U.S. Congressional districts stretch into Cook County. View our maps with both street data and precinct information.

State Senate District Maps

State Senate District Maps Updated!

There are 30 Illinois Senate districts in whole or part in Cook County. Each district is comprised of two state representative districts.

State Representative District Maps

State Representative District Maps Updated!

View each state representative district map with street data or precinct information.

Countywide Maps

Countywide Maps

This collection of maps includes Cook County's townships, municipalities, school districts, and more.

County Board Commissioner District Maps

County Commissioner District Maps Updated!

These maps provide boundaries of the County Board Commissioner districts located within suburban Cook County with street and precinct detail.

County Board of Review District Maps

County Board of Review District Maps Updated!

This map provides the boundaries of the three Board of Review districts.

Township Maps

Township Maps Updated!

Here you will find a map of the precinct boundaries within each of Cook County's 30 townships.

TIF Maps

TIF Maps

Each year, the Clerk's office prepares updates maps of about 400 active tax increment financing districts, grouped by suburban township or section of Chicago.

School District Maps

School District Maps

Four maps are featured here of elementary, high school and college district boundaries.

Early Voting Site Maps

Early Voting Site Maps

Prior to each election, Early Voting is offered throughout suburban Cook County. This map shows you those locations. 

Judicial Subcircuit District Maps

Judicial Subcircuit District Maps

These maps provide boundaries of the Judicial Subcircuit districts located within suburban Cook County with street and precinct detail.

Election Results Maps

Election Results Maps

Following elections, the Clerk's office produces maps based on turnout, Early Voting, and race results.