Thunder Ridge High School
Idaho Falls, ID · High School · Grades 9-12
Thunder Ridge High School is a high school in Idaho Falls, ID with 1,708 students enrolled and a 62% proficiency rate. Part of Bonneville Joint District. NCES data from the U.S. Department of Education.
Thunder Ridge High School is a high school in Idaho Falls, ID, enrolling 1,708 students in grades 9-12 within the Bonneville Joint District. That headcount is above the 530-student average for schools in the district.
EDFacts assessment data puts 62% of students at or above grade level in combined math and reading, a little above the national midpoint where roughly half of tested students clear the bar. That is 6 points above the 57% average for the Bonneville Joint District. Against the 54% Idaho statewide average, the school sits 8 points higher.
Over the last three reported years the district proficiency rate this school inherits has risen by about 15 points. As a high school, it reports a 85% adjusted-cohort graduation rate, the share of first-time ninth-graders who earn a regular diploma within four years.
The student-teacher ratio is 22.5 to 1, above the U.S. average of roughly 16 to 1. A relatively low 23% of students qualify for free or reduced-price lunch.
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About This School
Thunder Ridge High School is a high school located in Idaho Falls, Idaho. The school serves 1,708 students in grades 9-12. The student-to-teacher ratio is 22.5:1.
According to EDFacts assessment data, 62% of students meet grade-level proficiency standards in combined math and reading. The school reports a 85% graduation rate.
23% of students qualify for free or reduced-price lunch.
Thunder Ridge High School is part of the Bonneville Joint District in Idaho.
How This School Compares
Thunder Ridge High School has 1,708 students enrolled, making it larger than the average school in Bonneville Joint District (530 students). Its 62% proficiency rate is 6 percentage points above the district average of 57%. Compared to the Idaho state average of 54%, the school performs 8 points higher. The 22.5:1 student-teacher ratio is above the national average of 16:1.
Frequently Asked Questions
Thunder Ridge High School has 1,708 students enrolled in grades 9-12. The student-to-teacher ratio is 22.5:1.
According to EDFacts data, 62% of students at Thunder Ridge High School meet grade-level proficiency standards in combined math and reading assessments.
Thunder Ridge High School has a 85% graduation rate, measuring the percentage of students who graduate within four years.
Thunder Ridge High School is part of the Bonneville Joint District in Idaho Falls, 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.
Source: NCES Common Core of Data, 2026.