Elmer Thienes-Mary Hall Elementary School
Marlborough, CT · Middle School · Grades -1-6
Elmer Thienes-Mary Hall Elementary School is a middle school in Marlborough, CT with 456 students enrolled and a 72% proficiency rate. Part of Marlborough School District. NCES data from the U.S. Department of Education.
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About This School
Elmer Thienes-Mary Hall Elementary School is a middle school located in Marlborough, Connecticut. The school serves 456 students in grades -1-6. The student-to-teacher ratio is 12.7:1.
According to EDFacts assessment data, 72% of students meet grade-level proficiency standards in combined math and reading.
16% of students qualify for free or reduced-price lunch.
Elmer Thienes-Mary Hall Elementary School is part of the Marlborough School District in Connecticut.
How This School Compares
Elmer Thienes-Mary Hall Elementary School has 456 students enrolled, making it smaller than the average school in Marlborough School District (456 students). Its 72% proficiency rate is 0 percentage points above the district average of 72%. Compared to the Connecticut state average of 53%, the school performs 19 points higher. With a 12.7:1 student-teacher ratio, it offers smaller class sizes than the national average.
Frequently Asked Questions
Elmer Thienes-Mary Hall Elementary School has 456 students enrolled in grades -1-6. The student-to-teacher ratio is 12.7:1.
According to EDFacts data, 72% of students at Elmer Thienes-Mary Hall Elementary School meet grade-level proficiency standards in combined math and reading assessments.
Elmer Thienes-Mary Hall Elementary School is part of the Marlborough School District in Marlborough, Connecticut. 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.
The this entity record above pulls directly from NCES Common Core of Data and EDFacts. What follows is the per-entity context — how this entity sits in the broader U.S. K-12 school outcomes and enrollment distribution and which underlying factors drive the headline numbers.
Every number on this page links back to NCES Common Core of Data and EDFacts; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for this entity’s peers within U.S. public schools and districts. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.
Source: NCES Common Core of Data, 2026.