Capital High School is a three-year public secondary school in Boise, Idaho, United States. Opened in the fall of 1965, it was the third of four public high schools constructed in the Boise School District, and serves its northern portion.
Serving 1,170 students in grades 9-12, Capital Senior High School ranks in the top 50% of all schools in Idaho for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 34% (which is lower than the Idaho state average of 41%). The percentage of students achieving proficiency in reading/language arts is 63% (which is higher than the Idaho state average of 55%).
The student-teacher ratio of 16:1 is lower than the Idaho state level of 17:1.
Minority enrollment is 41% of the student body (majority Hispanic), which is higher than the Idaho state average of 28% (majority Hispanic).
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 1,170 students
- Student-Teacher Ratio: 16:1
- Minority Enrollment: 41%
- Graduation Rate: 85% (Top 50% in ID)
- Overall Testing Rank: Top 50%
- Math Proficiency: 34% (Btm 50%)
- Reading Proficiency: 63% (Top 30%)
- Science Proficiency: 27% (Btm 50%)
- Attendance Zone: Capital Senior High School serves the northwest part of Boise, ID, covering an attendance area of approximately 17.2 square miles. Families in this zone can typically expect a drive of 5 to 10 minutes to reach the school, with the furthest edge being about 4.7 miles away.
- Source: National Center for Education Statistics (NCES), ID Dept. of Education
School Overview
Capital Senior High School's student population of 1,170 students has grown by 6% over five school years.
The teacher population of 73 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
(No virtual instruction)
(No virtual instruction)
Total Students
1,170 students
Total Classroom Teachers
73 teachers
Year Founded
1965
Colors
Black, Gold, Silver
School Motto
Home of Eagle Pride!
School Rankings
Capital Senior High School ranks within the top 50% of all 704 schools in Idaho (based off of combined math and reading proficiency testing data).
The diversity score of Capital Senior High School is 0.59, which is more 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
#299 out of 704 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
34%
41%
Reading/Language Arts Test Scores (% Proficient)
63%
55%
Science Test Scores (% Proficient)
27%
41%
Student-Teacher Ratio
16:1
17:1
American Indian
n/a
1%
Asian
3%
1%
Hispanic
25%
21%
Black
7%
1%
White
59%
72%
Hawaiian
1%
n/a
Two or more races
5%
4%
All Ethnic Groups
Graduation Rate
85%
80%
Chronically Absent Students
(22-23)23.8%
16.9%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
29%
32%
Eligible for Reduced Lunch
7%
7%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), ID Dept. of Education
School Notes
- School Mascot: Capital Golden Eagle
Frequently Asked Questions
What is Capital Senior High School's ranking?
Capital Senior High School is ranked #299 out of 704 schools, which ranks it among the top 50% of public schools in Idaho.
What schools are Capital Senior High School often compared to?
Capital Senior High Schoolis often viewed alongside schools like Borah Senior High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
34% of students have achieved math proficiency (compared to the 41% ID state average), while 63% of students have achieved reading proficiency (compared to the 55% ID state average).
What is the graduation rate of Capital Senior High School?
The graduation rate of Capital Senior High School is 85%, which is higher than the Idaho state average of 80%.
How many students attend Capital Senior High School?
1,170 students attend Capital Senior High School.
What is the racial composition of the student body?
59% of Capital Senior High School students are White, 25% of students are Hispanic, 7% of students are Black, 5% of students are Two or more races, 3% of students are Asian, and 1% of students are Hawaiian.
What is the student-teacher ratio of Capital Senior High School?
Capital Senior High School has a student ration of 16:1, which is lower than the Idaho state average of 17:1.
What grades does Capital Senior High School offer ?
Capital Senior High School offers enrollment in grades 9-12 (No virtual instruction).
What school district is Capital Senior High School part of?
Capital Senior High School is part of Boise Independent School District.
In what neighborhood is Capital Senior High School located?
Capital Senior High School is located in the West Boise neighborhood of Boise, ID. There are 21 other public schools located in West Boise.
School Reviews
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