Thomas Middle School
Arlington Heights, IL · Middle School · Grades 6-8
Thomas Middle School is a middle school in Arlington Heights, IL with 961 students enrolled and a 62% proficiency rate. Part of Arlington Heights SD 25. NCES data from the U.S. Department of Education.
Get Thomas Middle School's new scores when they post
We'll email you the moment Thomas Middle School changes. No spam — only real updates.
About This School
Thomas Middle School is a middle school located in Arlington Heights, Illinois. The school serves 961 students in grades 6-8. The student-to-teacher ratio is 13.3:1.
According to EDFacts assessment data, 62% of students meet grade-level proficiency standards in combined math and reading.
15% of students qualify for free or reduced-price lunch.
Thomas Middle School is part of the Arlington Heights SD 25 in Illinois.
How This School Compares
Thomas Middle School has 961 students enrolled, making it larger than the average school in Arlington Heights SD 25 (591 students). Its 62% proficiency rate is 3 percentage points below the district average of 65%. Compared to the Illinois state average of 48%, the school performs 14 points higher. With a 13.3:1 student-teacher ratio, it offers smaller class sizes than the national average.
Frequently Asked Questions
Thomas Middle School has 961 students enrolled in grades 6-8. The student-to-teacher ratio is 13.3:1.
According to EDFacts data, 62% of students at Thomas Middle School meet grade-level proficiency standards in combined math and reading assessments.
Thomas Middle School is part of the Arlington Heights SD 25 in Arlington Heights, Illinois. You can view all schools in this district on the district page.
All data on this page comes from the National Center for Education Statistics (NCES) Common Core of Data and EDFacts assessment results. These are official federal datasets published by the U.S. Department of Education.
School profiles are built from NCES directory data and EDFacts assessment results. Proficiency rates reflect combined math and reading performance. Graduation rates are reported for high schools with available data.
For this entity, the underlying data on this page comes from NCES Common Core of Data and EDFacts. The breakdown above is the federal record; the paragraphs below add the per-entity context that makes the headline numbers usable for a real decision rather than just a data lookup.
The methodology behind every numeric value on this page is publicly documented on the NCES Common Core of Data and EDFacts portal and described in detail on this site’s methodology page. Refresh cadence varies by underlying series; the page surfaces the as-of date for each number so readers can trace any figure back to the source release.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. public schools and districts with similar size, similar exposure, or similar geography — not the national-level summary alone.
Source: NCES Common Core of Data, 2026.