NOTE: Gray indicates insufficient data or a suppressed estimate.
High school graduation rates across Illinois zip codes generally range from 80% to near 100%, with the highest concentrations of yellow (95–100%) areas spread throughout rural central and western Illinois. The Chicago metropolitan area in the northeast displays the most dramatic variation, with deep teal and dark blue zip codes indicating graduation rates dropping below 60–70% in select South and West Side neighborhoods, juxtaposed against near-universal attainment in affluent suburban zip codes just miles away. A secondary cluster of lower graduation rates appears in the southern tip of the state near Cairo and in scattered pockets around cities like East St. Louis and Champaign-Urbana.
Data: U.S. Census Bureau, 2023 ACS
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