In this series: Illinois 2025-26 Enrollment.

A year ago, Illinois's enrollment decline appeared to be running out of fuel. The state lost 6,500 students between 2022-23 and 2023-24, less than half the prior year's loss. The deceleration was reassuring enough that some administrators started talking about a bottom.

Then the Illinois State Board of Education published its 2024-25 enrollment figures, and the bottom held — barely. Illinois enrolled 1,848,560 K-12 public school students, down just 2,730 from the prior year. That is the smallest annual loss in the nine-year decline streak. It is also the lowest enrollment the state has recorded in at least two decades, falling below its 1997 level. Whatever floor people thought they saw last year may be a floor. But the system standing on it lost 136,000 students getting there.

What the numbers open up

The report card data covers roughly 860 districts with breakdowns by race, ethnicity, and special populations. Over the coming weeks, The ILEdTribune will unpack it in a series of data-driven articles. Here is what jumps out first.

CPS gained students while the rest of the state lost them. Chicago Public Schools added 3,278 students in 2024-25 — its first meaningful enrollment gain in over a decade — while every other region of the state continued to shrink. The reversal is driven almost entirely by English learner growth tied to international migration. But CPS is still missing roughly 88,000 students compared to its early-2000s peak. The gain is real, and it is a footnote on a much longer decline.

307 districts have never been smaller. More than one in three Illinois districts hit their all-time enrollment low in 2024-25. Only 59 districts are at or near their all-time highs. The asymmetry between districts at record lows and record highs is the widest it has been in the data window.

By the numbers: 1,848,560 students statewide in 2024-25 — down 2,730 from the prior year, a 0.1% decline, a ninth consecutive year of losses, and the state's lowest enrollment since at least 1997.

The threads we are following

English learners masked the real decline. Illinois lost 2,730 students overall in 2024-25. But strip out English learner growth and the underlying loss was 22,616 — an order of magnitude larger. EL enrollment grew by 83,371 students over six years, from 12.1% to 17.5% of the student body. That growth is decelerating. If it stops, the headline numbers get ugly fast.

White enrollment drove 93% of the decline. White students account for 125,719 of the 135,959 students Illinois lost since 2018-19. Black enrollment fell by 30,100 — a 49,522-student loss in Chicago alone partly offset by outmigration to southern suburbs. Hispanic enrollment grew modestly. The student body approaching the plateau looks nothing like the one that started declining.

Nearly one in two students is economically disadvantaged. The economically disadvantaged share of Illinois enrollment reached 49.7% in 2024-25, up from 48.8% in 2018-19. The share rose sharply in 2022-23, driven in part by changes in Community Eligibility Provision methodology, and has remained near 50% since.

What comes next

Each of these threads will get its own article with charts, district-level breakdowns, and context from local reporting. New articles publish Tuesdays. The first deep dive, next week, examines how 136,000 students disappeared while the decline was supposedly decelerating.

Detailed code that reproduces the analysis and figures in this article is available exclusively to EdTribune subscribers.