Election Data

Registration statistics (street index)

View or download voter registration statistics and download the street index of suburban Cook County.

Precinct canvass

Download a .zip file with an Excel spreadsheet with complete precinct-level election results for the November 2, 2010 General Election.

Download a .zip file with an Excel spreadsheet with complete precinct-level election results for the February 2, 2010 Primary Election.

Download a .zip file with an Excel spreadsheet with complete precinct-level election results for the April 7, 2009 Consolidated Election.

Turnout history

Download weighted votes from the February 2, 2010 Primary Election and view comparative election turnout in even-numbered years over the last 20 years.

Post-Election Reports

The Clerk's office produces post-election reports after elections in even-numbered years. In addition to complete Cook County results, these reports include analysis of close races, historical comparisons and turnout maps. Download reports:

• March 20, 2012
• November 2, 2010
• February 2, 2010
• November 4, 2008
• February 5, 2008

Registration file requests

See information about ordering voter registration files.

Download data

Downloadable data for qualifying users, including political organizations and those with FOIA requests.