High school (grades 9-12) · Boise, ID

Centennial High School

Federal NCES profile for Centennial High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 45/100.

2024-25 NCES dataHigh school (grades 9-12)NCES 160210000674
Compare schools View district
Compiled from official source data by .
0/100100/10045/100
👥 S:T ratio
23
🌟 Gifted program
70
🎓 Counselors
42
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →

The verdict

Centennial High School earns 45/100 on the Resource Investment Index, with class sizes larger than 74% of Idaho schools. It is also one of the largest schools in Idaho.

#2 of 7
high schools in Boise · Resource Index
45
Resource Index · Typical
19.2:1
large classes for Idaho
16.1%
free-lunch eligible

Centennial High School has class sizes larger than 74% of Idaho schools. Computed live against every Idaho school reporting to NCES.

By Resource Investment Index, Centennial High School ranks #2 of 7 high schools in Boise, ID.

School address

Boise, ID 83713
District: Joint School District No. 2 · Idaho

NCES ID 160210000674 Verify on NCES CCD record →

CCD year-over-year · 2022-23 → 2023-24

-161 students YoY

Centennial High School shrank from 1,931 students in 2022-23 to 1,770 in 2023-24 (-8.3%).

Teacher FTE lost 91.1 → 85.5 across the same CCD years.

Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).

Shrinking CCD campus

-161 students YoY 160210000674 · Boise, ID High · MID · TRAD

1,743 enr · 19.2:1 · 16.1% lunch · RII 45

Nearest enrollment peer: Mountain View High School (2,463 students)

Centennial High School shrank from 1,931 students in 2022-23 to 1,770 in 2023-24 (-8.3%). Teacher FTE lost 91.1 → 85.5 across the same CCD years. Read with this school → · District book → · Idaho schools → · Find another →

Centennial High School in the enrollment neighbourhood

Fall enrollment among this campus and nearest district peers

students

What this shows Centennial High School reports 1,743 students on the CCD universe file.

Source U.S. Department of Education, NCES Common Core of Data (Public School Universe) As of 2024-25

How Centennial High School compares

Centennial High School is a shrinking campus on CCD: ratios and free-lunch share vs Idaho and U.S. means.

Metric This school vs Idaho Idaho avg U.S. avg
Students per teacher 19.2:1 ▲ 12% 17.1:1 15.7:1
Free-lunch eligible 16.1% ▼ 45% 29.3% 51.7%
Enrollment 1,743 top 1% - -

Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25

19.2:1
Leaner classes than 19% of US schools, heavier class loads than most.
1,743
Bigger than 97% of US schools by enrollment, a large campus nationally.

Equity indicators methodology

Economic need
16.1%
free-lunch eligible - 45% below the Idaho average of 29.3%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
19.2:1
students per teacher - 12% above state mean
Top 74% in Idaho - lower ratio than 26% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Funding equity
$9,276
per pupil, district-wide - below Idaho avg of $12,445
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors6.0 FTE
Per 290 students, the combined health-and-guidance staffing load for this school.
Discipline context
107
in-school suspensions + 38 out-of-school
Suspension rate: 6.1 per 100 students. Combined in-school and out-of-school rate: 8.3 per 100 students. Reported via the Civil Rights Data Collection.

Student demographics

White 74.2%
Hispanic or Latino 12.6%
African American 4.5%
Two or More 4.5%
Asian 3.7%
American Indian / Alaska Native 0.3%
Native Hawaiian / Pacific Islander 0.1%

Largest group: White at 74.2% of enrollment.

Student-body diversity index 42.8/100

Simpson diversity index - at 42.8, Centennial High School is more mixed than the Idaho school average of 36.3.

Programs

AP courses offered 15
Gifted & talented Yes

District finance for Joint School District No. 2 reports $9,276 per pupil (NCES F-33) - open the district page for the full revenue mix.

How Centennial High School Compares to District-Mates

School Enrollment Economic Profile Student-Teacher Ratio
Mountain View High School Larger Similar economic need Higher S:T ratio
Owyhee High School Similar size Similar economic need Higher S:T ratio
Rocky Mountain High School Similar size Lower economic need Higher S:T ratio
Meridian High School Similar size Similar economic need Similar S:T ratio
Eagle High School Similar size Lower economic need Higher S:T ratio

Comparisons are relative to Centennial High School's own figures; each column derives from NCES Common Core of Data.

Other Schools in This District

Joint School District No. 2 · 5 sibling schools

View district profile

Nationwide high schools with similar size or staffing

Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.

Similar enrollment (~1,743 students)

Similar student-teacher ratio (~19.2:1)

Frequently asked questions about Centennial High School

How many students attend Centennial High School?

Centennial High School has 1,743 students enrolled. It is a high school in Boise, ID. CCD year-over-year: 1,931 (2022-23) → 1,770 (2023-24), down 161.

What is the student-teacher ratio at Centennial High School?

The student-teacher ratio at Centennial High School is 19.2:1, which is 12% higher than the Idaho average of 17.1:1 and 22% higher than the national average of 15.7:1.

What percentage of students receive free lunch at Centennial High School?

16.1% of students at Centennial High School are eligible for free lunch, compared to the Idaho average of 29.3%.

What is the racial and ethnic makeup of Centennial High School?

The largest demographic group at Centennial High School is White at 74.2% of enrollment, in Boise, ID.

What is the Resource Investment Index for Centennial High School?

Centennial High School has a Resource Investment Index of 45/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, gifted-program reporting, counselor availability. Not a test-score or academic measure (national median ~41/100, see methodology).

How does Centennial High School rank among high schools in Boise?

By Resource Investment Index, Centennial High School ranks #2 of 7 high schools in Boise, ID. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Boise on the city page.

What other schools are in Joint School District No. 2?

Besides Centennial High School, Joint School District No. 2 also operates Mountain View High School (2,463 students), Owyhee High School (1,884 students), and Rocky Mountain High School (1,848 students). See the Joint School District No. 2 district page for the complete list.

Read our methodology - how this data is sourced, computed, and verified.

Source: National Center for Education Statistics (NCES) CCD + Public School Universe (2024-25), CRDC (2021-22), F-33 District Finance Survey (FY 2022-23) · 2024-25 Data as of the 2024-25 school year. Coverage from U.S. Department of Education NCES Common Core of Data. Varies by entity type; administrative districts and certain charter networks may report only a subset of fields.

All federal data sources used on this page

Full source list and how we compute each figure: methodology page.

View saved
Compiled from official source data by .