Enrollment
1,307
Idaho · 2024-25 NCES data
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 48/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 160036000643
👥 S:T ratio 29
📚 AP courses 100
🌟 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 48/100 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
- 48
- Resource Index · Typical
- 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
District: Boise Independent District · Idaho
NCES ID 160036000643 Verify on NCES CCD record →
Teachers (FTE)
74.0
Federal CCD staff survey
Students per teacher
17.7:1
vs 17.1:1 Idaho avg
+4% vs state
Free-lunch eligible
7.1%
vs 29.3% Idaho avg
-76% vs state
Student-teacher ratio in context
How Timberline High School compares with Idaho and U.S. medians
What stands out at Timberline High School
Timberline High School is a lower-poverty, large high school in Boise, Idaho, enrolling 1,307 students.
At 17.7:1, its student-teacher ratio sits close to the Idaho median, within a few percentage points of the 17.1:1 state norm, neither notably crowded nor notably small.
Comparatively few students face economic hardship here, 7.1% free-meal eligibility runs 76% below the Idaho average.
By headcount it is one of the larger campuses in Idaho, bigger than 97% of state schools at 1,307 students.
Its Resource Investment Index lands in the lower third of 775 scored Idaho schools.
Against 40 statewide peers matched on enrollment and economic need, it ranks mid-pack at #26.
Its student body is led by White (74%) and Hispanic or Latino (10%) (diversity index 43/100).
On the academic-pipeline side it reports 35 Advanced Placement courses.
Counselor availability sits well past the ASCA benchmark, roughly 327 students sharing each counselor, though short of the most stretched campuses.
Boise Independent District also operates Boise Senior High School (1,512 students) and Borah Senior High School (1,308 students) alongside Timberline High School.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Timberline High School compares
Timberline High School on the metrics families compare, against 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 (what these measure)
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
$12,278
per pupil, district-wide
- above Idaho avg of $11,939
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.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
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
Funding & spending
District-wide per-pupil expenditure for Boise Independent District, which includes Timberline High School.
$12,278
Per student
+3%
vs Idaho
Avg $11,939
-26%
vs U.S.
Avg $16,593
Revenue mix
Local 45.0%
State 43.1%
Federal 11.9%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
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
- Enrollment
- 1,512
- Students per teacher
- 17.8:1
- Resource Index
- 33/100
- Enrollment
- 1,308
- Students per teacher
- 16:1
- Resource Index
- 38/100
- Enrollment
- 1,170
- Students per teacher
- 16.3:1
- Resource Index
- 39/100
- Enrollment
- 886
- Students per teacher
- 17.7:1
- Resource Index
- 33/100
- Enrollment
- 717
- Students per teacher
- 15.3:1
- Resource Index
- 40/100
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of Idaho, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~1,307 students)
Next steps
Verify locally before acting on Timberline High School's federal record.
- Compare Timberline High School against another school. Compare schools
- Boise Independent District's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
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.
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 48/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, 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.
Is Timberline High School a good school?
Timberline High School earns 48/100 on the Resource Investment Index, with class sizes near the Idaho median. It is also one of the largest schools in Idaho. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
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.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.