CENTENNIAL HIGH SCHOOL

High school·Grades 9-12 Boise, Idaho·83713
Score
89.7/100
Compare CENTENNIAL HIGH SCHOOL with another school
#8
Among 73 Idaho high schools
#6
In Joint School District No. 2
#1
In Boise
Top 11%
In Idaho

Score 89.7/100: better than 89% of Idaho high schools on 2025-26 state tests. Schools are only compared with others of the same type in the same state. How we score schools

Performance (state tests, 2025-26)

% proficient or advanced on state tests in Idaho, all students. Colored bars are green when the school is at or above the average for similar Idaho schools.

English language arts
79%
Similar Idaho schools ≈ 61%, better than 88% of them
351 students tested
Math
51%
Similar Idaho schools ≈ 37%, better than 87% of them
352 students tested
Science
59%
Similar Idaho schools ≈ 42%, better than 90% of them
350 students tested
All Idaho schools (ELA / math)
54% / 44%
State average across every school type, 2025-26
All 3 published results by grade and test

As published by Idaho State Department of Education. "Hidden" means the state didn't publish the result to protect student privacy.

SubjectGradeTestResultStudents tested
English language artsAll gradesISAT (+ IDAA)78.6351
MathAll gradesISAT (+ IDAA)51.1352
ScienceAll gradesISAT (+ IDAA)58.6350

School profile

Grades
9-12
Students
1,770
Type
High school
Charter school
No
Program
Regular

Students

Enrollment
1,770
Typical high school: 256
Free or reduced-price lunch
30%
Typical high school: 37%

District and location

City
Ada County

Contact

Address
12400 WEST MCMILLAN ROAD
Boise, ID 83713

"Typical" is the middle (median) high school in Idaho. Higher or lower is not in itself better or worse. Address, phone and website are as the state reported them to the U.S. Department of Education for 2024-25, so check with the school before visiting. School details: U.S. Department of Education, Common Core of Data (enrollment 2023-24, lunch eligibility 2024-25).

Nearby high schools

Straight-line distance. Check the district's attendance zones: living close to a school doesn't guarantee a place.

Location

OpenStreetMap · Google Maps

CENTENNIAL HIGH SCHOOL at a glance

CENTENNIAL HIGH SCHOOL is a public high school in Boise, Idaho, serving grades 9-12. It is part of Joint School District No. 2. It has about 1,770 students (a typical Idaho high school has 256). About 30% of students are eligible for free or reduced-price lunch, compared with 37% at a typical Idaho high school, which is useful context when reading test results.

In 2025-26 state tests, 79% in English language arts (similar schools: 61%) and 51% in math (similar schools: 37%) reached the state standard (% proficient or advanced). On our score, which compares it only with other Idaho high schools, it scores 89.7 out of 100: better than 89% of them, ranking #8 of 73. Its English language arts result rose by 4 points from the year before. This overview is generated automatically from published state and federal data; figures are rounded, and you can check the originals via the official sources above.

Compare CENTENNIAL HIGH SCHOOL with another school

Page updated 2026-10-12.