HI. Your post caught my eye because I also live in IL, although not in Oak Park. I'm afraid the chance of finding a person on this site who can answer information about a specific school is slim, because Greatschools isn't affiliated with any particular school. Tuition probably varies depending on the grade level (for example, preschool kids may not attend every day, or as long as older students) and it might make a difference if you have more than one student at the school....I would advise you to simply call and ask, because tuition rates also change from year to year, and there's no way of knowing what it will be when your child is ready to attend. Sorry we can't be of more help.