Postsecondary Enrollment. ILLINOIS. (n.d.). https://www.illinoisreportcard.com/state.aspx?source=trends&source2=postsecondaryenrollment&Stateid=IL.

City of Chicago, Illinois. (n.d.). Chicago Public Schools – High School Attendance Boundaries SY1920: Chicago, Illinois. Big Ten Academic Alliance. https://geo.btaa.org/catalog/d95y-ue9h.

Horowitz, J. M., Igielnik, R., & Kochhar, R. (2020, August 17). Trends in U.S. income and wealth inequality. Pew Research Center’s Social & Demographic Trends Project. https://www.pewresearch.org/social-trends/2020/01/09/trends-in-income-and-wealth-inequality/#:~:text=The%20wealth%20gap%20between%20upper,has%20grown%20wider%20this%20century.&text=From%201983%20to%202016%2C%20the,from%2032%25%20to%2017%25.

Schaeffer, K. (2020, May 31). 6 facts about economic inequality in the U.S. Pew Research Center. https://www.pewresearch.org/fact-tank/2020/02/07/6-facts-about-economic-inequality-in-the-u-s/.