Here is everything you need to know about the new Congressional, State Senate and State Rep districts as well as the new Chicago ward boundaries created by the redistricting process following the 2010 census. These new district boundaries will be in effect starting for the 2012 elections.
The new maps for congressional districts, state house, state senate and Chicago wards are now all official. Are you interested in seeing how the new maps overlay with the old maps, or with each other?
Are you interested in finding out which congressional districts overlap with which state senate districts or state rep districts, or even which counties are involved? I've run all the districts through the computer and created this simple utility to give you more information about the districts.