The 13th is a textbook example of gerrymandering: almost 200 miles long, but barely 15 miles wide. Most of our communities have some parts that are in the 13th and some that are in either the 12th or 15th.
Use this map from the state board of elections to find out which districts you are in.
The 13th is the highlighted yellow area.
Screenshot taken from https://ilhousedems.com/redistricting/