Enrollment
463
Idaho · 2024-25 NCES data
Other / mixed grade configuration · Idaho Falls, ID
Alturas Preparatory Academy
Federal NCES profile for Alturas Preparatory Academy, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 8/100.
2024-25 NCES dataOther / mixed grade configurationNCES 160019901150Charter school
👥 S:T ratio 8
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Alturas Preparatory Academy earns 8/100 on the Resource Investment Index, with class sizes larger than 92% of Idaho schools.
- #29 of 29
- schools in Idaho Falls · Resource Index
- 8
- Resource Index · Lower
- 23.1:1
- large classes for Idaho
- 463
- students enrolled
Alturas Preparatory Academy has class sizes larger than 92% of Idaho schools. Computed live against every Idaho school reporting to NCES.
By Resource Investment Index, Alturas Preparatory Academy ranks #29 of 29 schools in Idaho Falls, ID.
School address
District: Alturas Preparatory Academy Inc · Idaho
NCES ID 160019901150 Verify on NCES CCD record →
Teachers (FTE)
20.0
Federal CCD staff survey
Students per teacher
23.1:1
vs 17.1:1 Idaho avg
+35% vs state
Student-teacher ratio in context
How Alturas Preparatory Academy compares with Idaho and U.S. medians
What stands out at Alturas Preparatory Academy
Alturas Preparatory Academy is a mid-sized charter combined-grade school in Idaho Falls, Idaho, enrolling 463 students.
Class loads run heavy: 23.1:1 is larger than about 92% of Idaho schools and 35% above the 17.1:1 state mean, so each teacher carries more students than is typical.
Enrollment of 463 puts it in the larger third of Idaho schools by headcount.
Its Resource Investment Index trails 99% of the 775 Idaho schools with a score on record, one of the lower results on this measure.
Its student body is led by White (78%) and Hispanic or Latino (11%) (diversity index 38/100).
Its district draws 23.0% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Alturas Preparatory Academy Inc is a single-school charter district, so Alturas Preparatory Academy operates independently rather than alongside district-mates.
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 Alturas Preparatory Academy compares
Alturas Preparatory Academy on the metrics families compare, against Idaho and U.S. means.
| Metric | This school | vs Idaho | Idaho avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 23.1:1 | ▲ 35% | 17.1:1 | 15.7:1 |
| Enrollment | 463 | top 31% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
23.1:1
Leaner classes than 8% of US schools, heavier class loads than most.
463
Bigger than 57% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
23.1:1
students per teacher
- 35% above state mean
Top 92% in Idaho - lower ratio than 8% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Funding equity
$10,969
per pupil, district-wide
- below 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.
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 77.5%
Hispanic or Latino 11.0%
Two or More 5.8%
Asian 4.5%
African American 0.9%
Native Hawaiian / Pacific Islander 0.2%
Largest group: White at 77.5% of enrollment.
Student-body diversity index 38.2/100
Simpson diversity index - at 38.2, Alturas Preparatory Academy is about as mixed as the Idaho school average of 36.3.
Funding & spending
District-wide per-pupil expenditure for Alturas Preparatory Academy Inc, which includes Alturas Preparatory Academy.
$10,969
Per student
-8%
vs Idaho
Avg $11,939
-34%
vs U.S.
Avg $16,593
Revenue mix
Local 25.6%
State 51.4%
Federal 23.0%
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.
Similar other 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 (~463 students)
Next steps
Verify locally before acting on Alturas Preparatory Academy's federal record.
- Compare Alturas Preparatory Academy against another school. Compare schools
- Alturas Preparatory Academy Inc'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 Alturas Preparatory Academy
How many students attend Alturas Preparatory Academy?
Alturas Preparatory Academy has 463 students enrolled. It is a public school in Idaho Falls, ID.
What is the student-teacher ratio at Alturas Preparatory Academy?
The student-teacher ratio at Alturas Preparatory Academy is 23.1:1, which is 35% higher than the Idaho average of 17.1:1 and 47% higher than the national average of 15.7:1.
What is the racial and ethnic makeup of Alturas Preparatory Academy?
The largest demographic group at Alturas Preparatory Academy is White at 77.5% of enrollment, in Idaho Falls, ID.
What is the Resource Investment Index for Alturas Preparatory Academy?
Alturas Preparatory Academy has a Resource Investment Index of 8/100 (lower reported resources relative to schools nationally) based on 1 factor: student-teacher ratio. Not a test-score or academic measure (national median ~41/100, see methodology). Limited indicators were available, so the index reflects partial data.
How does Alturas Preparatory Academy rank among schools in Idaho Falls?
By Resource Investment Index, Alturas Preparatory Academy ranks #29 of 29 schools in Idaho Falls, ID. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Idaho Falls on the city page.
Is Alturas Preparatory Academy a good school?
Alturas Preparatory Academy earns 8/100 on the Resource Investment Index, with class sizes larger than 92% of 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.
What other schools are in Alturas Preparatory Academy Inc?
None; Alturas Preparatory Academy Inc is a single-school charter district, and Alturas Preparatory Academy is its only campus.
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.