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 1,391 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 20:1 is higher than the Idaho state level of 17:1.
Minority enrollment is 24% of the student body (majority Hispanic), which is lower than the Idaho state average of 27% (majority Hispanic).
Quick Stats (2025)
- Grades: 10-12
- Enrollment: 1,391 students
- Student:Teacher Ratio: 20:1
- Minority Enrollment: 24%
- 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 1,391 students has stayed relatively flat over five school years.
The teacher population of 70 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 10-12
(No virtual instruction)
(No virtual instruction)
Total Students
1,391 students
Gender %
Total Classroom Teachers
70 teachers
Year Founded
1998
Colors
Black, Royal blue, Silver
School Calendar
First Day of School
Fri. Aug 15, 2025
Last Day of School
Mon. May 25, 2026
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 0.41, which is less than the diversity score at state average of 0.43. 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
20:1
17:1
American Indian
n/a
1%
Asian
7%
1%
Hispanic
10%
20%
Black
2%
1%
White
76%
73%
Hawaiian
n/a
n/a
Two or more races
5%
4%
All Ethnic Groups
Graduation Rate
90%
80%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
9%
26%
Eligible for Reduced Lunch
2%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), ID Dept. of Education
School Notes
- School Mascot: Timberline Wolf
Profile last updated: 02/09/2025
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?
1,391 students attend Timberline High School.
What is the racial composition of the student body?
76% of Timberline High School students are White, 10% of students are Hispanic, 7% of students are Asian, 5% of students are Two or more races, and 2% of students are Black.
What is the student:teacher ratio of Timberline High School?
Timberline High School has a student ration of 20:1, 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.
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