High school (grades 9-12) · Boise, ID

Timberline High School

Federal NCES profile for Timberline High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 31/100.

2024-25 NCES dataHigh school (grades 9-12)NCES 160036000643
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Compiled from official source data by .
0/100100/10031/100
👥 S:T ratio
29
🌟 Gifted program
30
🎓 Counselors
35
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →

The verdict

Timberline High School earns 31/100 on the Resource Investment Index, with class sizes near the Idaho median. It is also one of the largest schools in Idaho.

#7 of 7
high schools in Boise · Resource Index
31
Resource Index · Lower
17.7:1
students per teacher
7.1%
free-lunch eligible

Timberline High School has class sizes near the Idaho median. Computed live against every Idaho school reporting to NCES.

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

School address

Boise, ID 83706
District: Boise Independent District · Idaho

NCES ID 160036000643 Verify on NCES CCD record →

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

-7 students YoY

Timberline High School held near 1,391 students from 2022-23 to 2023-24 (-7 headcount).

Teacher FTE lost 74.7 → 70.2 across the same CCD years.

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

Steady CCD campus

-7 students YoY 160036000643 · Boise, ID High · MID · TRAD

1,307 enr · 17.7:1 · 7.1% lunch · RII 31

Nearest enrollment peer: Boise Senior High School (1,512 students)

Timberline High School held near 1,391 students from 2022-23 to 2023-24 (-7 headcount). Teacher FTE lost 74.7 → 70.2 across the same CCD years. Read with this school → · District book → · Idaho schools → · Find another →

Timberline High School in the enrollment neighbourhood

Fall enrollment among this campus and nearest district peers

students

What this shows Timberline High School reports 1,307 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 Timberline High School compares

Timberline High School held steady on CCD headcount: ratios and free-lunch share vs Idaho and U.S. means.

Metric This school vs Idaho Idaho avg U.S. avg
Students per teacher 17.7:1 ▲ 4% 17.1:1 15.7:1
Free-lunch eligible 7.1% ▼ 76% 29.3% 51.7%
Enrollment 1,307 top 3% - -

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

17.7:1
Leaner classes than 26% of US schools, heavier class loads than most.
1,307
Bigger than 95% of US schools by enrollment, a large campus nationally.

Equity indicators methodology

Economic need
7.1%
free-lunch eligible - 76% below the Idaho average of 29.3%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
17.7:1
students per teacher - 4% above state mean
Top 59% in Idaho - lower ratio than 41% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Funding equity
$12,892
per pupil, district-wide - above 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
Counselors4.0 FTE
Per 327 students, the combined health-and-guidance staffing load for this school.
Discipline context
20
in-school suspensions + 20 out-of-school
Suspension rate: 1.5 per 100 students. Combined in-school and out-of-school rate: 3.1 per 100 students. Reported via the Civil Rights Data Collection.

Student demographics

White 74.4%
Hispanic or Latino 9.9%
Asian 7.7%
Two or More 6.0%
African American 1.3%
Native Hawaiian / Pacific Islander 0.3%
American Indian / Alaska Native 0.2%

Largest group: White at 74.4% of enrollment.

Student-body diversity index 42.7/100

Simpson diversity index - at 42.7, Timberline High School is more mixed than the Idaho school average of 36.3.

Programs

AP courses offered 35

District finance for Boise Independent District reports $12,892 per pupil (NCES F-33) - open the district page for the full revenue mix.

How Timberline High School Compares to District-Mates

School Enrollment Economic Profile Student-Teacher Ratio
Boise Senior High School Similar size Similar economic need Similar S:T ratio
Borah Senior High School Similar size Higher economic need Lower S:T ratio
Capital Senior High School Similar size Higher economic need Similar S:T ratio
North Junior High School Smaller Similar economic need Similar S:T ratio
West Junior High Smaller Higher economic need Lower S:T ratio

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

Other Schools in This District

Boise Independent District · 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 (~1,307 students)

Similar student-teacher ratio (~17.7:1)

Frequently asked questions about Timberline High School

How many students attend Timberline High School?

Timberline High School has 1,307 students enrolled. It is a high school in Boise, ID. CCD year-over-year: 1,398 (2022-23) → 1,391 (2023-24), nearly flat (-7).

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

The student-teacher ratio at Timberline High School is 17.7:1, which is 4% higher than the Idaho average of 17.1:1 and 13% higher than the national average of 15.7:1.

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

7.1% of students at Timberline High School are eligible for free lunch, compared to the Idaho average of 29.3%.

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

The largest demographic group at Timberline High School is White at 74.4% of enrollment, in Boise, ID.

What is the Resource Investment Index for Timberline High School?

Timberline High School has a Resource Investment Index of 31/100 (lower 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 Timberline High School rank among high schools in Boise?

By Resource Investment Index, Timberline High School ranks #7 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 Boise Independent District?

Besides Timberline High School, Boise Independent District also operates Boise Senior High School (1,512 students), Borah Senior High School (1,308 students), and Capital Senior High School (1,170 students). See the Boise Independent District 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.

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Compiled from official source data by .