Reading this list carefully
The schools listed here score notably below what their demographics would predict. They are not the lowest-scoring schools in the country in absolute terms. They are schools whose proficiency rates fall in the bottom 10% within their state after controlling for free-and-reduced-lunch share.
This is a more useful frame than raw rankings for two reasons. First, a wealthy suburban school posting 70% proficient may still be a relative underperformer if its peer-state schools at the same FRL share post 82%. Second, a high-poverty school at 30% proficient may be performing as expected (or even better) given its student profile. The list below isolates schools where actual outcomes lag the prediction.
What being on this list does and does not mean
Being a relative underperformer is a signal, not a verdict. The school may be in the middle of a leadership transition. It may have absorbed a recent enrollment shift that hasn't fully shown up in the FRL share. It may be working through curriculum or staffing problems that take three to five years to surface in test scores. None of those make the school "bad." They mean the school is currently producing fewer points than peer-state schools with similar student profiles are producing.
Families looking at a school on this list should read it alongside the trajectory data (is the school improving or declining?), the recent ratings, and the school's narrative on its own pages. A relative underperformer that is on an improving trajectory looks very different from one that is flat or declining.
What patterns show up
Schools that consistently land in the underperforming tier within their state tend to share one or more of: recent rapid principal turnover, persistent teacher staffing gaps in core subjects, a curriculum mismatch with the state assessment, or a recent demographic shift that the school has not yet adjusted programming to handle. None of these are insurmountable.
How to use the data
For school board members, district leaders, and community advocates, the underperformers list is most useful as a starting question, not an answer. The right question is: "Given what we know about this school's students, why is it producing fewer points than peer-state schools that serve similar students?" That question is investigable. The aggregate proficiency number is not.
Methodology
Same per-state OLS regression as our outperformers analysis. Sources: NCES Common Core of Data 2024-25 (FRL share, enrollment, school metadata) and state-native assessments for the most recent available year, typically 2023-24 or 2024-25. Composite proficiency is the average of math and reading/ELA percent-met-or-exceeded across all grades tested at the school. Schools with fewer than four reported assessment rows in 2024 or 2025 are excluded. Virtual schools are excluded because their FRL reporting and assessment participation are not comparable to brick-and-mortar schools. States with fewer than 30 schools meeting the data threshold are skipped.
The schools on this list are the bottom 10% within each state by residual from the per-state regression. They are sorted globally by raw residual, so the top of the table is a mix of states.
