Rimrock Elementary
Ammon, ID · Middle School · Grades -1-6
Rimrock Elementary is a middle school in Ammon, ID with 551 students enrolled and a 71% proficiency rate. Part of Bonneville Joint District. NCES data from the U.S. Department of Education.
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About This School
Rimrock Elementary is a middle school located in Ammon, Idaho. The school serves 551 students in grades -1-6. The student-to-teacher ratio is 23.0:1.
According to EDFacts assessment data, 71% of students meet grade-level proficiency standards in combined math and reading.
13% of students qualify for free or reduced-price lunch.
Rimrock Elementary is part of the Bonneville Joint District in Idaho.
How This School Compares
Rimrock Elementary has 551 students enrolled, making it larger than the average school in Bonneville Joint District (530 students). Its 71% proficiency rate is 15 percentage points above the district average of 57%. Compared to the Idaho state average of 54%, the school performs 17 points higher. The 23.0:1 student-teacher ratio is above the national average of 16:1.
Frequently Asked Questions
Rimrock Elementary has 551 students enrolled in grades -1-6. The student-to-teacher ratio is 23.0:1.
According to EDFacts data, 71% of students at Rimrock Elementary meet grade-level proficiency standards in combined math and reading assessments.
Rimrock Elementary is part of the Bonneville Joint District in Ammon, Idaho. 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.
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.
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.