Lewiston High School
Lewiston, ID · High School · Grades 9-12
Lewiston High School is a high school in Lewiston, ID with 1,373 students enrolled and a 67% proficiency rate. Part of Lewiston Independent District. NCES data from the U.S. Department of Education.
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About This School
Lewiston High School is a high school located in Lewiston, Idaho. The school serves 1,373 students in grades 9-12. The student-to-teacher ratio is 18.6:1.
According to EDFacts assessment data, 67% of students meet grade-level proficiency standards in combined math and reading. The school reports a 83% graduation rate.
17% of students qualify for free or reduced-price lunch.
Lewiston High School is part of the Lewiston Independent District in Idaho.
How This School Compares
Lewiston High School has 1,373 students enrolled, making it larger than the average school in Lewiston Independent District (366 students). Its 67% proficiency rate is 11 percentage points above the district average of 57%. Compared to the Idaho state average of 54%, the school performs 13 points higher.
Frequently Asked Questions
Lewiston High School has 1,373 students enrolled in grades 9-12. The student-to-teacher ratio is 18.6:1.
According to EDFacts data, 67% of students at Lewiston High School meet grade-level proficiency standards in combined math and reading assessments.
Lewiston High School has a 83% graduation rate, measuring the percentage of students who graduate within four years.
Lewiston High School is part of the Lewiston Independent District in Lewiston, 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.
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.