Election Data

Registration statistics (street index)

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

Precinct canvasses

Download precinct-level election results. Files are available as .zip Excel spreadsheets.

Turnout history

View comparative election turnout over the last 25 years.

Early Voting turnout history

During Early Voting, real-time turnout is available by site. An archive of Early Voting turnout data is available here.

Registration file requests

See information about ordering voter registration files.

Download Early Voting/Grace Period Voting/Mail Ballot Data

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