Enrollment
524
Idaho · 2024-25 NCES data
Middle school (grades 6-8) · Idaho Falls, ID
Federal NCES profile for Rocky Mountain Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 50/100.
The verdict
Rocky Mountain Middle School earns 50/100 on the Resource Investment Index, with class sizes near the Idaho median.
Rocky Mountain Middle School has class sizes near the Idaho median. Computed live against every Idaho school reporting to NCES.
By Resource Investment Index, Rocky Mountain Middle School ranks #1 of 5 middle schools in Idaho Falls, ID.
NCES ID 160093000168 Verify on NCES CCD record →
Enrollment
524
Idaho · 2024-25 NCES data
Teachers (FTE)
31.0
Federal CCD staff survey
Students per teacher
16.9:1
vs 17.1:1 Idaho avg
-1% vs state
Free-lunch eligible
22.8%
vs 29.3% Idaho avg
-22% vs state
How Rocky Mountain Middle 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.
Rocky Mountain Middle School is a mid-sized middle school in Idaho Falls, Idaho, enrolling 524 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.
Economic need runs somewhat below the state's typical profile, with 22.8% of students eligible for free meals.
Enrollment of 524 puts it in the larger third of Idaho schools by headcount.
Its Resource Investment Index lands in the upper third of 775 scored Idaho schools.
Among 218 similarly sized, similarly resourced-need Idaho schools statewide, it ranks #18, a top-tier result once campus size and economic need are matched.
Its student body is led by White (78%) and Hispanic or Latino (19%) (diversity index 35/100).
Counselor coverage runs a bit thin, about 262 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
The surrounding Bonneville Joint District spends $8,318 per pupil, 30% below the Idaho average, a leaner-resourced district than most.
Its district draws 16.4% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Bonneville Joint District also operates Thunder Ridge High School (1,693 students) and Hillcrest High School (1,230 students) alongside Rocky Mountain Middle 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
Rocky Mountain Middle 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 | 22.8% | ▼ 22% | 29.3% | 51.7% |
| Enrollment | 524 | top 22% | - | - |
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 78.4% of enrollment.
Simpson diversity index - at 35.0, Rocky Mountain Middle School is about as mixed as the Idaho school average of 36.3.
District-wide per-pupil expenditure for Bonneville Joint District, which includes Rocky Mountain Middle 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 |
|---|---|---|---|
| Thunder Ridge High School | Larger | Similar economic need | Higher S:T ratio |
| Hillcrest High School | Larger | Lower economic need | Higher S:T ratio |
| Bonneville High School | Larger | Similar economic need | Higher S:T ratio |
| Black Canyon Middle School | Larger | Similar economic need | Higher S:T ratio |
| Iona Elementary School | Larger | Similar economic need | Higher S:T ratio |
Comparisons are relative to Rocky Mountain Middle 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 Rocky Mountain Middle 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.
Rocky Mountain Middle School has 524 students enrolled. It is a middle school in Idaho Falls, ID.
The student-teacher ratio at Rocky Mountain Middle 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.
22.8% of students at Rocky Mountain Middle School are eligible for free lunch, compared to the Idaho average of 29.3%.
The largest demographic group at Rocky Mountain Middle School is White at 78.4% of enrollment, in Idaho Falls, ID.
Rocky Mountain Middle School has a Resource Investment Index of 50/100 (higher 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, Rocky Mountain Middle School ranks #1 of 5 middle 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 middle schools in Idaho Falls on the city page.
Rocky Mountain Middle School earns 50/100 on the Resource Investment Index, with class sizes near the Idaho median. 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 Rocky Mountain Middle School, Bonneville Joint District also operates Thunder Ridge High School (1,693 students), Hillcrest High School (1,230 students), and Bonneville High School (1,176 students). See the Bonneville Joint 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, “Rocky Mountain Middle School, Idaho Falls 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/rocky-mountain-middle-school-id
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