Enrollment
1,307
Idaho · 2024-25 NCES data
2024-25 NCES data High school (grades 9-12) NCES 160036000643
Timberline High School — Boise, ID
Federal NCES profile for Timberline High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 47/100.
👥 Class size 24
📚 AP courses 100
🌟 Gifted program 30
🎓 Counselors 35
How this works: Each indicator above is scored 0–100 from federal NCES and CRDC data, then averaged into the Resource Investment Index. This measures resource allocation — staffing, programs, and support services — not standardized test scores or academic outcomes. Full methodology →
School address
District: Boise Independent District · Idaho
Public location data per NCES (National Center for Education Statistics) Common Core of Data. Verify the school's current address on the NCES CCD record.
Teachers (FTE)
74.0
Federal CCD staff survey
Students per teacher
18.9:1
vs 17.3:1 Idaho avg
+9% 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
The federal record — no proprietary index, no editorial formula.
PlainSchools publishes the actual federal measurements — enrollment, staffing, demographics, discipline, and finance — straight from the NCES Common Core of Data, CRDC, and F-33 surveys. No composite rating, no opinion-based score on top. You get the same raw numbers researchers and policymakers use, with benchmarks, spending context, and equity indicators computed from the same federal datasets. Full methodology linked below.
What this school's NCES data tells you
Timberline High School reports 1,307 enrolled students to the National Center for Education Statistics (NCES) alongside 74.0 full-time-equivalent teachers, producing a 18.9:1 student-teacher ratio. That figure sits 9% above the Idaho state mean of 17.3:1, signalling larger average class loads than peers in the same state. Against the national 2024-25 average of 15.9:1, it is 19% higher, a useful calibration for families comparing districts across state lines.
Title I and federal lunch eligibility offer another window into the student body: 7.1% of pupils qualify for free meals, a proxy for household income that federal programs use to direct funding. The free-lunch share is 76% below the Idaho average and 86% below the national baseline. The school offers 35 Advanced Placement courses, a stronger academic pipeline indicator than enrollment alone. Counselor coverage works out to roughly 327 students per counselor, above the ASCA-recommended ceiling of 250:1.
On the finance side, the surrounding Boise Independent District spends $13,620 per pupil district-wide, above the Idaho average of $12,943 and below the national average of $19,490. Revenue comes 45.0% from local sources (property taxes), 43.1% from the state, and 11.9% from federal programs per the NCES F-33 finance survey. Taken together, these measurements produce a Resource Investment Index of 47/100 (D), calculated from 4 distinct NCES and CRDC indicators measuring resource allocation rather than academic outcomes.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Timberline High School compares
Cross-validating school-level NCES values against Idaho state and U.S. national means lets readers see whether this school is an outlier or in line with peers.
| Metric | This school | vs Idaho | Idaho avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 18.9:1 | ▲ 9% | 17.3:1 | 15.9:1 |
| Free-lunch eligible | 7.1% | ▼ 76% | 29.3% | 51.8% |
| Enrollment | 1,307 | top 97% | — | — |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
What the federal data reveals about equity at this school
Federal measurements — not ratings — surface the resource and opportunity picture. Below are the indicators that researchers, civil-rights monitors, and funding formulas use to assess equity.
Economic need
7.1%
free-lunch eligible
— 76% 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
18.9:1
students per teacher
— 9% above state mean
Top 66% in Idaho — lower ratio than 34% of state schools
Between 15:1 and 20:1 — in line with the typical U.S. public-school staffing range.
Funding equity
$13,620
per pupil, district-wide
— above Idaho avg of $12,943
Below the U.S. average per-pupil spend — funding constraints 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
Enrollment 1,307 Top 97% in Idaho — larger than 3% of 778 state schools
Teachers (FTE) 74.0
Students per teacher 18.9:1 +9% vs state
Free-lunch eligible 7.1% -76% vs state
NCES ID 160036000643
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.
Programs & staff
AP courses offered 35
Counselors (FTE) 4.0
Students per counselor 327:1
Discipline & special education
In-school suspensions 20
Out-of-school suspensions 20
Funding & spending
District-wide per-pupil expenditure for Boise Independent District, which includes Timberline High School.
$13,620
Per student
+5%
vs Idaho
Avg $12,943
-30%
vs U.S.
Avg $19,490
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.
Other Schools in This District
- Enrollment
- 1,512
- Students per teacher
- 18.7:1
- Enrollment
- 1,308
- Students per teacher
- 15.7:1
- Enrollment
- 1,170
- Students per teacher
- 16.9:1
- Enrollment
- 886
- Students per teacher
- 17.5:1
- Enrollment
- 717
- Students per teacher
- 17.1:1
Similar high schools in Boise
6 comparable high schools (grades 9-12) serving the same city.
Centennial High School
Standard public school
1,743 students 21.2:1 students per teacher
Boise Senior High School
Standard public school
1,512 students 18.7:1 students per teacher
Borah Senior High School
Standard public school
1,308 students 15.7:1 students per teacher
Capital Senior High School
Standard public school
1,170 students 16.9:1 students per teacher
Isucceed Academy
Alternative education program
345 students 30.5:1 students per teacher
Cardinal Academy
Alternative education program
53 students 6.2:1 students per teacher
Educator & family resources
In-depth guides on understanding NCES data, school choice, and education funding.
Understanding NCES data
How CCD, CRDC and EDFacts feed every public-school number you see.
Choose a school district
Eight signals that matter more than the overall ranking number.
How schools are funded
Title I, F-33, state aid formulas and what per-pupil spending really means.
Chronic absenteeism
Why missing 10% of school matters and how it varies by district.
Magnet vs charter vs traditional
Three school types, three funding models, three sets of trade-offs.
School discipline data
What CRDC suspension and expulsion records do and don't reveal.
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 18.9:1, which is 9% higher than the Idaho average of 17.3:1 and 19% higher than the national average of 15.9:1.
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%. The school serves a diverse student body in BOISE, ID.
What is the Resource Investment Index for Timberline High School?
Timberline High School has a Resource Investment Index of 47/100 (D) based on 4 factors: student-teacher ratio, AP course offerings, counselor availability. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.