The State Board of Elections
Illinois State Board of Elections Illinois State Board of Elections
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Voter File Formats

Voter File Formats
Preferred Format
  • Suitable for most groups or individuals interested in voter data. 
  • Combines voter and voting history data into one file or table. 
  • Includes up to the last 15 elections if available (Voting history availability varies by voter and by election jurisdiction.
  • Available in Microsoft Access and comma-delimited text forms.
Those with special processing requirements may opt for the following format.

Normalized Format
  • Consists of three tables (files), one with voter data, one with political subdivision data, and another containing voting history.
  • Requires that the three tables (files) be joined to access voting history or to determine political subdivisions. This process requires extensive knowledge of and experience with database software and programming.
  • Available in comma-delimited text form only.

Voter File Formats