Thunder Mountain High School was one of three public high schools in Juneau, Alaska; it opened in August 2008. In its first year in operation it served grades 9–11; thus seniors in the Juneau School District finished high school at their existing 9-12 schools.
Serving 589 students in grades 9-12, Thunder Mountain High School ranks in the top 50% of all schools in Alaska for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 25-29% (which is lower than the Alaska state average of 32%). The percentage of students achieving proficiency in reading/language arts is 35-39% (which is higher than the Alaska state average of 29%).
The student:teacher ratio of 20:1 is higher than the Alaska state level of 15:1.
Minority enrollment is 53% of the student body (majority American Indian and Hispanic), which is equal to the Alaska state average of 53% (majority American Indian).
Quick Stats (2025)
- Grades: 9-12
- Enrollment: 589 students
- Student:Teacher Ratio: 20:1
- Minority Enrollment: 53%
- Graduation Rate: 90-94% (Top 10% in AK)
- Overall Testing Rank: Top 50%
- Math Proficiency: 25-29% (Btm 50%)
- Reading Proficiency: 35-39% (Top 50%)
- Science Proficiency: 55-59% (Top 20%)
- Source: National Center for Education Statistics (NCES), AK Dept. of Education
Top Rankings
Thunder Mountain High School ranks among the top 20% of public schools in Alaska for:
Category
Attribute
Science Proficiency
Graduation Rate
Diversity
School Overview
Thunder Mountain High School's student population of 589 students has declined by 16% over five school years.
The teacher population of 29 teachers has declined by 17% over five school years.
Grades Offered
Grades 9-12
(Primarily virtual)
(Primarily virtual)
Total Students
589 students
Gender %
Total Classroom Teachers
29 teachers
Year Founded
2008
School Calendar
School Rankings
Thunder Mountain High School ranks within the top 50% of all 441 schools in Alaska (based off of combined math and reading proficiency testing data).
The diversity score of Thunder Mountain High School is 0.72, which is more than the diversity score at state average of 0.71. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#218 out of 441 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
25-29%
32%
Reading/Language Arts Test Scores (% Proficient)
35-39%
29%
Science Test Scores (% Proficient)
55-59%
38%
Student : Teacher Ratio
20:1
15:1
American Indian
12%
22%
Asian
8%
5%
Hispanic
11%
8%
Black
n/a
2%
White
47%
47%
Hawaiian
3%
3%
Two or more races
19%
13%
All Ethnic Groups
Graduation Rate
90-94%
78%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
9%
37%
Eligible for Reduced Lunch
3%
3%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), AK Dept. of Education
School Notes
- School Mascot: Falcons
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Thunder Mountain High School's ranking?
Thunder Mountain High School is ranked #218 out of 441 schools, which ranks it among the top 50% of public schools in Alaska.
What schools are Thunder Mountain High School often compared to?
Thunder Mountain High Schoolis often viewed alongside schools like Juneau-douglas High School Yadaa.at Kale by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
25-29% of students have achieved math proficiency (compared to the 32% AK state average), while 35-39% of students have achieved reading proficiency (compared to the 29% AK state average).
What is the graduation rate of Thunder Mountain High School?
The graduation rate of Thunder Mountain High School is 90-94%, which is higher than the Alaska state average of 78%.
How many students attend Thunder Mountain High School?
589 students attend Thunder Mountain High School.
What is the racial composition of the student body?
47% of Thunder Mountain High School students are White, 19% of students are Two or more races, 12% of students are American Indian, 11% of students are Hispanic, 8% of students are Asian, and 3% of students are Hawaiian.
What is the student:teacher ratio of Thunder Mountain High School?
Thunder Mountain High School has a student ration of 20:1, which is higher than the Alaska state average of 15:1.
What grades does Thunder Mountain High School offer ?
Thunder Mountain High School offers enrollment in grades 9-12 (Primarily virtual).
What school district is Thunder Mountain High School part of?
Thunder Mountain High School is part of Juneau Borough School District.
In what neighborhood is Thunder Mountain High School located?
Thunder Mountain High School is located in the Mendenhall Valley neighborhood of Juneau, AK. There are 4 other public schools located in Mendenhall Valley.
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