The wave of school closures moving across the country is usually explained in the language of budgets. The more honest explanation is simpler: there are not enough children. Districts closed more than 1,000 public schools in 2025-26, up from 755 in 2021-22, according to National Center for Education Statistics data. That is the fourth year in a row that closures have risen, roughly a 35% jump over four years, and more are already scheduled.
To see why, it helps to look at enrollment rather than spreadsheets. Our analysis of NCES figures shows that public schools lost nearly 1.5 million students, about 3% of the total, between the 2017-18 and 2024-25 school years. Marguerite Roza, who directs Georgetown University's Edunomics Lab, has a name for it: "the big shrink." When there are fewer students, there is less state money, because most funding follows enrollment, and eventually there are more school buildings than a district can fill or afford.
The Districts Doing the Closing
The clearest way to see the pattern is to look at the specific districts now shutting buildings and check what happened to their enrollment first. In our data, every one of them was emptying out well before the closure votes.
| District | 2017-18 | 2024-25 | Change | % change |
|---|---|---|---|---|
| Houston ISD | 214,175 | 176,727 | -37,448 | -17.5% |
| Pittsburgh | 22,024 | 19,211 | -2,813 | -12.8% |
| Broward County | 271,956 | 243,553 | -28,403 | -10.4% |
| Philadelphia | 127,202 | 116,230 | -10,972 | -8.6% |
Philadelphia's school board voted in May to close 17 schools, and the district has said it has 70,000 more seats than it needs. Houston's board moved in February to close about a dozen schools over protests from parents. Pittsburgh voted in May to close 12. And Broward County, north of Miami, closed one elementary school last year, voted in January to close six more before 2026-27, and has warned it may need to close more than 10 additional schools the following year. In each case, officials said declining enrollment and the cost of operating half-empty buildings drove the decision, which is exactly what the enrollment history predicts.
Why the Students Are Disappearing
The shrink has several causes stacked on top of each other. The largest is demographic: the country is simply having fewer children, so smaller kindergarten classes have been working their way up through the grades for years. On top of that, families have moved, generally out of the Northeast, the industrial Midwest, and the coastal West toward the Sun Belt and Mountain West, a shift visible in our state-by-state enrollment-decline data.
School choice is pulling in the same direction. In states like Florida, a growing share of families have used taxpayer-funded vouchers and scholarship programs to enroll their children in private schools, or moved them to charter schools, which are publicly funded but run independently. Every student who leaves a traditional district takes their per-pupil funding with them. Federal projections show enrollment continuing to fall from its 2019 peak, with schools expected to lose close to 4 million students between 2019 and 2031, and those estimates were made before recent moves to sharply curb immigration, which reduces enrollment further in some communities.
The Students Nobody Can Find
There is one part of the decline that should unsettle anyone who cares about where children end up. Researchers who study enrollment have noticed that some students have simply vanished from official data in recent years, likely into home schooling or small private microschools that governments do not fully track. A shrinking enrollment count is a manageable budget problem. A shrinking count that includes children nobody is accounting for is something else, and it is the piece experts say they understand the least.
None of this makes closures painless. Shutting a school is hard on the students who have to move, the teachers who lose their building, and the neighborhood that loses an anchor, which is why these votes draw crowds and rallies. But for a family trying to read the tea leaves, the signal is not in the closure announcement. It is in the enrollment trend that comes years earlier. If your district's numbers are sliding, the conversation about which buildings to close is already coming, whether or not it has reached your school yet. You can see how your own state and its districts are trending in our school-closures data.
Sources
allk12 analysis of National Center for Education Statistics (NCES) enrollment data, school years 2017-18 and 2024-25.
National Center for Education Statistics, Common Core of Data
The Washington Post: School closures are rising across the U.S. as pools of students and funds shrink
