Enrollment
321
Idaho · 2024-25 NCES data
Other / mixed grade configuration · Boise, ID
Federal NCES profile for Koelsch Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 34/100.
The verdict
Koelsch Elementary School earns 34/100 on the Resource Investment Index, with class sizes near the Idaho median. It is also more racially and ethnically mixed than most Idaho schools.
Koelsch Elementary School has class sizes near the Idaho median. Computed live against every Idaho school reporting to NCES.
By Resource Investment Index, Koelsch Elementary School ranks #49 of 65 schools in Boise, ID.
NCES ID 160036000060 Verify on NCES CCD record →
Enrollment
321
Idaho · 2024-25 NCES data
Teachers (FTE)
19.0
Federal CCD staff survey
Students per teacher
16.9:1
vs 17.1:1 Idaho avg
-1% vs state
Free-lunch eligible
3.8%
vs 29.3% Idaho avg
-87% vs state
How Koelsch Elementary School compares with Idaho and U.S. medians
At or below state median
16.9:1 - 0.2 below the Idaho state median of 17.1:1, indicating smaller average class loads than typical schools in the state.
Koelsch Elementary School is a lower-poverty, mid-sized combined-grade school in Boise, Idaho, enrolling 321 students.
At 16.9:1, 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, 3.8% free-meal eligibility runs 87% below the Idaho average.
With 321 students, its enrollment sits close to the Idaho median campus size.
Its Resource Investment Index lands in the lower third of 775 scored Idaho schools.
Among 68 similarly sized, similarly resourced-need Idaho schools statewide, it ranks #51, in the lower tier once campus size and economic need are matched.
Its student body is led by White (50%) and Hispanic or Latino (27%), more mixed than most schools in the state (diversity index 65/100).
Counselor access is stretched at roughly 1605 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Boise Independent District also operates Boise Senior High School (1,512 students) and Borah Senior High School (1,308 students) alongside Koelsch Elementary 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
Koelsch Elementary 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 | 16.9:1 | ▼ 1% | 17.1:1 | 15.7:1 |
| Free-lunch eligible | 3.8% | ▼ 87% | 29.3% | 51.7% |
| Enrollment | 321 | top 52% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
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.
Largest group: White at 50.2% of enrollment.
Simpson diversity index - at 65.4, Koelsch Elementary School is more mixed than the Idaho school average of 36.3.
District-wide per-pupil expenditure for Boise Independent District, which includes Koelsch Elementary School.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Boise Senior High School | Larger | Similar economic need | Similar S:T ratio |
| Borah Senior High School | Larger | Higher economic need | Similar S:T ratio |
| Timberline High School | Larger | Similar economic need | Similar S:T ratio |
| Capital Senior High School | Larger | Higher economic need | Similar S:T ratio |
| North Junior High School | Larger | Similar economic need | Similar S:T ratio |
Comparisons are relative to Koelsch Elementary School's own figures; each column derives from NCES Common Core of Data.
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.
Next steps
Verify locally before acting on Koelsch Elementary School's federal record.
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.
Koelsch Elementary School has 321 students enrolled. It is a public school in Boise, ID.
The student-teacher ratio at Koelsch Elementary School is 16.9:1, which is 1% lower than the Idaho average of 17.1:1 and 8% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
3.8% of students at Koelsch Elementary School are eligible for free lunch, compared to the Idaho average of 29.3%.
The largest demographic group at Koelsch Elementary School is White at 50.2% of enrollment, in Boise, ID. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 65.4/100.
Koelsch Elementary School has a Resource Investment Index of 34/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, counselor availability. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Koelsch Elementary School ranks #49 of 65 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 schools in Boise on the city page.
Koelsch Elementary School earns 34/100 on the Resource Investment Index, with class sizes near the Idaho median. It is also more racially and ethnically mixed than most Idaho schools. 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.
Besides Koelsch Elementary School, Boise Independent District also operates Boise Senior High School (1,512 students), Borah Senior High School (1,308 students), and Timberline High School (1,307 students). See the Boise Independent District district page for the complete list.
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.
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PlainSchools, “Koelsch Elementary School, Boise ID.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/koelsch-elementary-school-id
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