Timberline High School is a comprehensive public secondary school in Lacey, Washington. Opened in 1970 and part of North Thurston Public Schools, its school colors are green and gold and the mascot is a blazer. Timberline primarily receives students from Komachin Middle School.
Serving 1,426 students in grades 9-12, Timberline High School ranks in the top 50% of all schools in Washington for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 33% (which is lower than the Washington state average of 41%). The percentage of students achieving proficiency in reading/language arts is 73% (which is higher than the Washington state average of 53%).
The student:teacher ratio of 22:1 is higher than the Washington state level of 16:1.
Minority enrollment is 53% of the student body (majority Hispanic), which is higher than the Washington state average of 52% (majority Hispanic).
Quick Stats (2025)
- Grades: 9-12
- Enrollment: 1,426 students
- Student:Teacher Ratio: 22:1
- Minority Enrollment: 53%
- Graduation Rate: 90% (Top 30% in WA)
- Overall Testing Rank: Top 50%
- Math Proficiency: 33% (Btm 50%)
- Reading Proficiency: 73% (Top 20%)
- Science Proficiency: 58% (Top 30%)
- Source: National Center for Education Statistics (NCES), WA Dept. of Education
Top Rankings
Timberline High School ranks among the top 20% of public schools in Washington for:
Category
Attribute
Reading/Language Arts Proficiency
Diversity
School Overview
Timberline High School's student population of 1,426 students has stayed relatively flat over five school years.
The teacher population of 65 teachers has declined by 8% over five school years.
Grades Offered
Grades 9-12
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
1,426 students
Gender %
Total Classroom Teachers
65 teachers
Year Founded
1970
Colors
Green, Gold
School Calendar
First Day of School
Mon. Sep 1, 2025
Last Day of School
Thu. Jun 18, 2026
School Rankings
Timberline High School ranks within the top 50% of all 2,088 schools in Washington (based off of combined math and reading proficiency testing data).
The diversity score of Timberline High School is 0.71, which is more than the diversity score at state average of 0.69. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#722 out of 2088 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
33%
41%
Reading/Language Arts Test Scores (% Proficient)
73%
53%
Science Test Scores (% Proficient)
58%
49%
Student : Teacher Ratio
22:1
16:1
American Indian
1%
1%
Asian
7%
9%
Hispanic
21%
26%
Black
6%
5%
White
47%
48%
Hawaiian
3%
2%
Two or more races
15%
9%
All Ethnic Groups
Graduation Rate
90%
84%
Eligible for Free Lunch
39%
49%
Eligible for Reduced Lunch
9%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), WA Dept. of Education
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Timberline High School's ranking?
Timberline High School is ranked #722 out of 2,088 schools, which ranks it among the top 50% of public schools in Washington.
What schools are Timberline High School often compared to?
Timberline High Schoolis often viewed alongside schools like River Ridge High School, North Thurston High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
33% of students have achieved math proficiency (compared to the 41% WA state average), while 73% of students have achieved reading proficiency (compared to the 53% WA 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 Washington state average of 84%.
How many students attend Timberline High School?
1,426 students attend Timberline High School.
What is the racial composition of the student body?
47% of Timberline High School students are White, 21% of students are Hispanic, 15% of students are Two or more races, 7% of students are Asian, 6% of students are Black, 3% of students are Hawaiian, and 1% of students are American Indian.
What is the student:teacher ratio of Timberline High School?
Timberline High School has a student ration of 22:1, which is higher than the Washington state average of 16:1.
What grades does Timberline High School offer ?
Timberline High School offers enrollment in grades 9-12 (Supplemental Virtual).
What school district is Timberline High School part of?
Timberline High School is part of North Thurston School District.
School Reviews
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