Estelle Kampmeyer Elem School
O Fallon, IL · Elementary School · Grades -1-5
Estelle Kampmeyer Elem School is a elementary school in O Fallon, IL with 478 students enrolled and a 69% proficiency rate. Part of O Fallon CCSD 90. NCES data from the U.S. Department of Education.
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About This School
Estelle Kampmeyer Elem School is a elementary school located in O Fallon, Illinois. The school serves 478 students in grades -1-5. The student-to-teacher ratio is 19.1:1.
According to EDFacts assessment data, 69% of students meet grade-level proficiency standards in combined math and reading.
25% of students qualify for free or reduced-price lunch.
Estelle Kampmeyer Elem School is part of the O Fallon CCSD 90 in Illinois.
How This School Compares
Estelle Kampmeyer Elem School has 478 students enrolled, making it smaller than the average school in O Fallon CCSD 90 (563 students). Its 69% proficiency rate is 7 percentage points above the district average of 62%. Compared to the Illinois state average of 48%, the school performs 21 points higher.
Frequently Asked Questions
Estelle Kampmeyer Elem School has 478 students enrolled in grades -1-5. The student-to-teacher ratio is 19.1:1.
According to EDFacts data, 69% of students at Estelle Kampmeyer Elem School meet grade-level proficiency standards in combined math and reading assessments.
Estelle Kampmeyer Elem School is part of the O Fallon CCSD 90 in O Fallon, 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.
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.
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.