- Enrollment
- 1,693
- Students per teacher
- 22.3:1
- Resource Index
- 32/100
Other / mixed grade configuration · Ammon, ID
Rimrock Elementary
Federal NCES profile for Rimrock Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 27/100.
2024-25 NCES dataOther / mixed grade configurationNCES 160093000909
👥 S:T ratio 11
🌟 Gifted program 70
🎓 Counselors 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Rimrock Elementary earns 27/100 on the Resource Investment Index, with class sizes larger than 89% of Idaho schools.
- #7 of 7
- schools in Ammon · Resource Index
- 27
- Resource Index · Lower
- 22.2:1
- large classes for Idaho
- 9.1%
- free-lunch eligible
Rimrock Elementary has class sizes larger than 89% of Idaho schools. Computed live against every Idaho school reporting to NCES.
By Resource Investment Index, Rimrock Elementary ranks #7 of 7 schools in Ammon, ID.
School address
District: Bonneville Joint District · Idaho
NCES ID 160093000909 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-18 students YoY
Rimrock Elementary held near 533 students from 2022-23 to 2023-24 (-18 headcount).
Teacher FTE lost 24.1 → 23.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-18 students YoY 160093000909 · Ammon, ID Other · MID · TRAD
533 enr · 22.2:1 · 9.1% lunch · RII 27
Nearest enrollment peer: Thunder Ridge High School (1,693 students)
Rimrock Elementary held near 533 students from 2022-23 to 2023-24 (-18 headcount). Teacher FTE lost 24.1 → 23.0 across the same CCD years. Read with this school → · District book → · Idaho schools → · Find another →
Rimrock Elementary in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Thunder Ridge
Thunder Ridge High School
1,693 students
- Hillcrest High
Hillcrest High School
1,230 students
- Bonneville Hig
Bonneville High School
1,176 students
- Black Canyon M
Black Canyon Middle School
810 students
- Iona Elementar 661
Iona Elementary School
661 students
- This school 533
Rimrock Elementary
533 students
What this shows Rimrock Elementary reports 533 students on the CCD universe file.
How Rimrock Elementary compares
Rimrock Elementary held steady on CCD headcount: ratios and free-lunch share vs Idaho and U.S. means.
| Metric | This school | vs Idaho | Idaho avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 22.2:1 | ▲ 30% | 17.1:1 | 15.7:1 |
| Free-lunch eligible | 9.1% | ▼ 69% | 29.3% | 51.7% |
| Enrollment | 533 | top 21% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
22.2:1
Leaner classes than 10% of US schools, heavier class loads than most.
533
Bigger than 66% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
9.1%
free-lunch eligible
- 69% 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
22.2:1
students per teacher
- 30% above state mean
Top 89% in Idaho - lower ratio than 11% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Funding equity
$8,756
per pupil, district-wide
- below Idaho avg of $12,445
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 533 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 91.7%
Hispanic or Latino 5.1%
Two or More 1.9%
American Indian / Alaska Native 0.6%
African American 0.4%
Asian 0.4%
Largest group: White at 91.7% of enrollment.
Student-body diversity index 15.6/100
Simpson diversity index - at 15.6, Rimrock Elementary is less mixed than the Idaho school average of 36.3.
Programs
Gifted & talented Yes
District finance for Bonneville Joint District reports $8,756 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Rimrock Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Thunder Ridge High School | Larger | Similar economic need | Similar S:T ratio |
| Hillcrest High School | Larger | Similar economic need | Higher S:T ratio |
| Bonneville High School | Larger | Similar economic need | Similar S:T ratio |
| Black Canyon Middle School | Larger | Higher economic need | Lower S:T ratio |
| Iona Elementary School | Similar size | Similar economic need | Similar S:T ratio |
Comparisons are relative to Rimrock Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,230
- Students per teacher
- 24.6:1
- Resource Index
- 30/100
- Enrollment
- 1,176
- Students per teacher
- 23.1:1
- Resource Index
- 33/100
- Enrollment
- 810
- Students per teacher
- 19.8:1
- Resource Index
- 37/100
- Enrollment
- 661
- Students per teacher
- 23.6:1
- Resource Index
- 25/100
Nationwide other schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~533 students)
Frequently asked questions about Rimrock Elementary
How many students attend Rimrock Elementary?
Rimrock Elementary has 533 students enrolled. It is a public school in Ammon, ID. CCD year-over-year: 551 (2022-23) → 533 (2023-24), nearly flat (-18).
What is the student-teacher ratio at Rimrock Elementary?
The student-teacher ratio at Rimrock Elementary is 22.2:1, which is 30% higher than the Idaho average of 17.1:1 and 41% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Rimrock Elementary?
9.1% of students at Rimrock Elementary are eligible for free lunch, compared to the Idaho average of 29.3%.
What is the racial and ethnic makeup of Rimrock Elementary?
The largest demographic group at Rimrock Elementary is White at 91.7% of enrollment, in Ammon, ID.
What is the Resource Investment Index for Rimrock Elementary?
Rimrock Elementary has a Resource Investment Index of 27/100 (lower reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, gifted-program reporting, counselor availability. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Rimrock Elementary rank among schools in Ammon?
By Resource Investment Index, Rimrock Elementary ranks #7 of 7 schools in Ammon, ID. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Ammon on the city page.
What other schools are in Bonneville Joint District?
Besides Rimrock Elementary, 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.