If you are 14 or older, you may show your current, valid student ID from a Chicago high school as one form of ID when getting a library card. You'll need to show another piece of ID that includes your home address.
Library cards for teens 14 to 17 have the same privileges as library cards for adults, except that teens under 18 cannot check out Digital Museum Passes.
Chicago students can also visit any CPL location and request an 81 Club student card.