Claymont Elem.
Ballwin, MO · Elementary School
Claymont Elem. is a elementary school in Ballwin, MO with 510 students enrolled and a 72% proficiency rate. Part of Parkway C-2. NCES data from the U.S. Department of Education.
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About This School
Claymont Elem. is a elementary school located in Ballwin, Missouri. The school serves 510 students. The student-to-teacher ratio is 15.9:1.
According to EDFacts assessment data, 72% of students meet grade-level proficiency standards in combined math and reading.
8% of students qualify for free or reduced-price lunch.
Claymont Elem. is part of the Parkway C-2 in Missouri.
How This School Compares
Claymont Elem. has 510 students enrolled, making it smaller than the average school in Parkway C-2 (591 students). Its 72% proficiency rate is 7 percentage points above the district average of 65%. Compared to the Missouri state average of 49%, the school performs 23 points higher.
Frequently Asked Questions
Claymont Elem. has 510 students enrolled. The student-to-teacher ratio is 15.9:1.
According to EDFacts data, 72% of students at Claymont Elem. meet grade-level proficiency standards in combined math and reading assessments.
Claymont Elem. is part of the Parkway C-2 in Ballwin, Missouri. 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.
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.