As I mentioned before starting with the 2014 General Election the Illinois State Board of Elections has made precinct-level vote totals available for all races. The State Board offers flat files in csv format for each of the state's election authorities. I have assembled that data, formatted it and created some interesting tools.
First, to find this new data click on "ANALYSIS" and then "Precinct Level Election Results". Here is a rundown of what is available:
Also if you want to see Statewide Race by Districts in table format we have that too:
The statewide file is large, it's about 1.8 million records so some pages may take a few seconds to load. Also, when looking at statewide races by district (congressional, state senate, state rep) currently the only method available is the Simple Method which includes any precinct that is in whole or in part in the district. I hope to be able to add a more complex apportionment method where precincts that include more than one district have those votes apportioned to one district or another. For reasons I won't get into you can't guarantee that one method is more accurate than the other but the apportionment method is generally favored. If you'd like to develop your own methodology for evaluating the data I have made the raw and formatted data available for easy download so you can use it as you wish. In the meantime I wanted to publish what I had here so I could move on to finishing up the maps and then get the 2014 monthly campaign budgets done later this month.
Feel free to contact me with any questions at Scott.Kennedy (at) illinoiselectiondata.com or on Twitter at @ILElectionData.