Timberline High School is a three-year public secondary school in Boise, Idaho. Opened in August 1998, it is the fourth and newest traditional high school in the Boise School District, serving its southeast portion.
Serving 1,307 students in grades 10-12, Timberline High School ranks in the top 20% of all schools in Idaho for overall test scores (math proficiency is top 30%, and reading proficiency is top 30%).
The percentage of students achieving proficiency in math is 50% (which is higher than the Idaho state average of 41%). The percentage of students achieving proficiency in reading/language arts is 72% (which is higher than the Idaho state average of 55%).
The student-teacher ratio of 18:1 is higher than the Idaho state level of 17:1.
Minority enrollment is 25% of the student body (majority Hispanic), which is lower than the Idaho state average of 28% (majority Hispanic).
Quick Facts (2026)
- Grades: 10-12
- Enrollment: 1,307 students
- Student-Teacher Ratio: 18:1
- Minority Enrollment: 25%
- Graduation Rate: 90% (Top 30% in ID)
- Overall Testing Rank: Top 20%
- Math Proficiency: 50% (Top 30%)
- Reading Proficiency: 72% (Top 20%)
- Science Proficiency: 46% (Top 50%)
- Source: National Center for Education Statistics (NCES), ID Dept. of Education
Top Rankings
Timberline High School ranks among the top 20% of public schools in Idaho for:
Category
Attribute
Overall Rank
Reading/Language Arts Proficiency
School Overview
Timberline High School's student population of 1,307 students has declined by 37% over five school years.
The teacher population of 74 teachers has declined by 24% over five school years.
Grades Offered
Grades 10-12
(No virtual instruction)
(No virtual instruction)
Total Students
1,307 students
Total Classroom Teachers
74 teachers
Year Founded
1998
Colors
Black, Royal blue, Silver
School Calendar
School Rankings
Timberline High School ranks within the top 20% of all 704 schools in Idaho (based off of combined math and reading proficiency testing data).
The diversity score of Timberline High School is 0.42, which is less than the diversity score at state average of 0.44. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#120 out of 704 schools
(Top 20%)
(Top 20%)
Math Test Scores (% Proficient)
50%
41%
Reading/Language Arts Test Scores (% Proficient)
72%
55%
Science Test Scores (% Proficient)
46%
41%
Student-Teacher Ratio
18:1
17:1
American Indian
n/a
1%
Asian
8%
1%
Hispanic
10%
21%
Black
1%
1%
White
75%
72%
Hawaiian
n/a
n/a
Two or more races
6%
4%
All Ethnic Groups
Graduation Rate
90%
80%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
14%
32%
Eligible for Reduced Lunch
3%
7%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), ID Dept. of Education
School Notes
- School Mascot: Timberline Wolf
Frequently Asked Questions
What is Timberline High School's ranking?
Timberline High School is ranked #120 out of 704 schools, which ranks it among the top 20% of public schools in Idaho.
What schools are Timberline High School often compared to?
Timberline High Schoolis often viewed alongside schools like Boise Senior High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
50% of students have achieved math proficiency (compared to the 41% ID state average), while 72% of students have achieved reading proficiency (compared to the 55% ID state average).
What is the graduation rate of Timberline High School?
The graduation rate of Timberline High School is 90%, which is higher than the Idaho state average of 80%.
How many students attend Timberline High School?
1,307 students attend Timberline High School.
What is the racial composition of the student body?
75% of Timberline High School students are White, 10% of students are Hispanic, 8% of students are Asian, 6% of students are Two or more races, and 1% of students are Black.
What is the student-teacher ratio of Timberline High School?
Timberline High School has a student ration of 18:1, which is higher than the Idaho state average of 17:1.
What grades does Timberline High School offer ?
Timberline High School offers enrollment in grades 10-12 (No virtual instruction).
What school district is Timberline High School part of?
Timberline High School is part of Boise Independent School District.
In what neighborhood is Timberline High School located?
Timberline High School is located in the Southeast Boise neighborhood of Boise, ID. There are 7 other public schools located in Southeast Boise.
School Reviews
Review Timberline High School. Reviews should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
Recent Articles
AI Report Cards: Should Schools Evaluate AI Use?
Explore whether schools should assess student AI use, the benefits, risks, and what responsible AI report cards could look like in 2026.
The Parent’s Guide to School Cell Phone Bans in 2026
Learn how school cell phone bans work in 2026, why districts are adopting them, and what parents should expect.
Parental Involvement in Public Schools: 2026 Update
Explore the latest 2026 trends, research, and strategies shaping parental involvement in public schools and student success.
