Community prompt from u/allk12. Replies below.
Thomas Middle School
Test scores
IAR + ISA 2024-25 . % Proficient (Levels 4-5)What this means: On the IAR + ISA, Illinois's statewide test, about 79 of every 100 students at this school read and write at grade level and about 60 of 100 do math at grade level. Across all Illinois schools, those numbers are about 51 and 38. Reading and writing scores are up about 20 points since 2023, while math scores are up about 12 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 70% of students here test proficient in math and reading, compared with the roughly 62% typical for Illinois schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Illinois's top nor bottom 10%.
7-year change
SY 2017-18 vs SY 2024-25About Thomas Middle School
Thomas Middle School is a well-populated middle school in Arlington Heights, Illinois, run under Arlington Heights SD 25. The school teaches 1,024 students in grades 6 through 8. That puts it 122% bigger than the typical public school in Illinois, which averages around 462 students.
Arlington Heights SD 25 comprises 9 schools with combined enrollment of 5,423 students; Thomas Middle School is among them.
On demographics, Thomas Middle School lists that 71% of the student body identifies as White. The remainder consists of 17% Asian, 9% Hispanic. The wider county runs roughly 44% White, putting the school's mix meaningfully more White than the area baseline.
Looking at school resources, Thomas Middle School records 77 full-time-equivalent teachers, putting the student-to-teacher ratio at about 13.3:1. The state averages about 13.0:1, putting this campus right in line with peers. Roughly 16% of students at Thomas Middle School qualify for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal. Set against Cook County (around 66%), the school's rate is noticeably below typical.
With demographic context factored in, Thomas Middle School performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 62.3%, the actual is 69.9%, a residual of +7.6 points.
Across the wider county, the surrounding county (Cook County) reports that median household income runs about $83,498, about 43% of the adult population holds a bachelor's degree or above, and census figures put the poverty rate at about 10%. In all, Cook County runs 1406 public schools (combined enrollment of about 697,934 students), of which Thomas Middle School is one.
Nearest neighbor: Olive-Mary Stitt School, around 0.2 miles off. 8 of the 8 nearest public schools sit inside a five-mile radius. Among the 8 schools in that immediate cluster with test data (this one included), Thomas Middle School ranks 5th on composite proficiency, above the local average of 69.3%.
Thomas Middle School operates from a commuter-belt location.
Five-year trend. Thomas Middle School's enrollment has rose 5% since 2018, when it stood at 974 (now 1,024). Over the same period, the Asian share rose from 12% to 17%.
Within the allk12 community for this school, the page collects discussion, questions, and updates around pickup logistics, teacher feedback, and after-school programs. Members of the school community can share what they know.
Cook County at a glance
View full county profileQuick facts
Related schools
- South Middle SchoolMiddle · 812 students
- Olive-Mary Stitt SchoolElementary · 671 students
- Westgate Elem SchoolElementary · 633 students
- Ivy Hill Elem SchoolElementary · 593 students
- Dryden Elem SchoolElementary · 521 students
- Windsor Elementary SchoolElementary · 490 students
- John Hersey High SchoolHigh · 2,040 students
- South Middle SchoolMiddle · 812 students
- Olive-Mary Stitt SchoolElementary · 671 students
- Westgate Elem SchoolElementary · 633 students
- Ivy Hill Elem SchoolElementary · 593 students
- Dryden Elem SchoolElementary · 521 students
- Olive-Mary Stitt School0.2 mi · 671
- Patton Elem School1.0 mi · 399
- Ivy Hill Elem School1.0 mi · 593
- John Hersey High School1.0 mi · 2,040
- Windsor Elementary School1.4 mi · 490
- Greenbrier Elem School1.6 mi · 280