Chicago Public Schools (CPS), the third-largest school district in the nation, has lost more than 100,000 students in the last 20 years. Of that, more than 60,000 left in the last decade, more than 40,000 of those in the past five years alone.

In 2000, CPS enrollment stood at more than 430,000 students. Today, just slightly more than 330,000 students attend CPS — and there is a consistent decline of as many as 10,000 public school students each year.

https://kidsfirstchicago.org/publications/enrollment-crisis

So, TIFWIW.