Enrollment
691
Montana · 2024-25 NCES data
Middle school (grades 6-8) · Billings, MT
Castle Rock Middle School
Federal NCES profile for Castle Rock Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 35/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 300387000869
👥 S:T ratio 29
🌟 Gifted program 70
🎓 Counselors 31
📋 Attendance 8
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Castle Rock Middle School earns 35/100 on the Resource Investment Index, with class sizes larger than 93% of Montana schools. It is also one of the largest schools in Montana.
- #7 of 10
- middle schools in Billings · Resource Index
- 35
- Resource Index · Typical
- 17.7:1
- large classes for Montana
- 691
- students enrolled
Castle Rock Middle School has class sizes larger than 93% of Montana schools. Computed live against every Montana school reporting to NCES.
By Resource Investment Index, Castle Rock Middle School ranks #7 of 10 middle schools in Billings, MT.
School address
District: Billings Elem · Montana
NCES ID 300387000869 Verify on NCES CCD record →
Teachers (FTE)
39.0
Federal CCD staff survey
Students per teacher
17.7:1
vs 11.8:1 Montana avg
+50% vs state
Student-teacher ratio in context
How Castle Rock Middle School compares with Montana and U.S. medians
What stands out at Castle Rock Middle School
Castle Rock Middle School is a large middle school in Billings, Montana, enrolling 691 students.
Class loads run heavy: 17.7:1 is larger than about 93% of Montana schools and 50% above the 11.8:1 state mean, so each teacher carries more students than is typical.
By headcount it is one of the larger campuses in Montana, bigger than 97% of state schools at 691 students.
Its Resource Investment Index lands in the lower third of 826 scored Montana schools.
Its student body is led by White (79%) and Two or More (9%) (diversity index 36/100).
Counselor availability sits well past the ASCA benchmark, roughly 346 students sharing each counselor, though short of the most stretched campuses.
Chronic absenteeism is elevated: 36.8% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Billings Elem spends $12,537 per pupil, 35% below the Montana average, a leaner-resourced district than most.
Its district draws 21.1% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among Billings's middle schools, it stands alongside Lewis & Clark Middle School (741 students): Castle Rock Middle School is smaller than that campus by headcount and runs heavier classes (17.7:1 vs 16.1:1).
Billings Elem also operates Lewis & Clark Middle School (741 students) and Ben Steele Middle School (740 students) alongside Castle Rock 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
How Castle Rock Middle School compares
Castle Rock Middle School on the metrics families compare, against Montana and U.S. means.
| Metric | This school | vs Montana | Montana avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 17.7:1 | ▲ 50% | 11.8:1 | 15.7:1 |
| Enrollment | 691 | top 3% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
17.7:1
Leaner classes than 26% of US schools, heavier class loads than most.
691
Bigger than 80% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Staffing depth
17.7:1
students per teacher
- 50% above state mean
Top 93% in Montana - lower ratio than 7% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
36.8%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$12,537
per pupil, district-wide
- below Montana avg of $19,282
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors2.0 FTE
Per 346 students, the combined health-and-guidance staffing load for this school.
Discipline context
25
in-school suspensions + 10 out-of-school
Suspension rate: 3.6 per 100 students. Combined in-school and out-of-school rate: 5.1 per 100 students. Reported via the Civil Rights Data Collection.
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 78.9%
Two or More 8.5%
Hispanic or Latino 5.8%
American Indian / Alaska Native 5.1%
African American 1.0%
Asian 0.6%
Native Hawaiian / Pacific Islander 0.1%
Largest group: White at 78.9% of enrollment.
Student-body diversity index 36.4/100
Simpson diversity index - at 36.4, Castle Rock Middle School is more mixed than the Montana school average of 23.6.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Billings Elem, which includes Castle Rock Middle School.
$12,537
Per student
-35%
vs Montana
Avg $19,282
-24%
vs U.S.
Avg $16,593
Revenue mix
Local 36.9%
State 42.0%
Federal 21.1%
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.
How Castle Rock Middle School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Lewis & Clark Middle School | Similar size | No free-lunch data | Lower S:T ratio |
| Ben Steele Middle School | Similar size | No free-lunch data | Similar S:T ratio |
| Meadowlark School | Similar size | No free-lunch data | Higher S:T ratio |
| Will James Middle School | Similar size | No free-lunch data | Similar S:T ratio |
| Medicine Crow Middle School | Smaller | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Castle Rock Middle School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 741
- Students per teacher
- 16.1:1
- Resource Index
- 33/100
- Enrollment
- 740
- Students per teacher
- 17.2:1
- Resource Index
- 38/100
- Enrollment
- 691
- Students per teacher
- 19.2:1
- Resource Index
- 34/100
- Enrollment
- 634
- Students per teacher
- 17.1:1
- Resource Index
- 35/100
- Enrollment
- 517
- Students per teacher
- 14.8:1
- Resource Index
- 40/100
Similar middle schools in Billings
6 comparable middle schools (grades 6-8) serving the same city.
Lewis & Clark Middle School
Standard public school
741 students 16.1:1 students per teacher
Ben Steele Middle School
Standard public school
740 students 17.2:1 students per teacher
Will James Middle School
Standard public school
634 students 17.1:1 students per teacher
Medicine Crow Middle School
Standard public school
517 students 14.8:1 students per teacher
Riverside Middle School
Standard public school
436 students 10.9:1 students per teacher
Elder Grove 7-8
Standard public school
248 students 19.1:1 students per teacher
Similar middle schools statewide
Matched by enrollment size and by staffing ratio across all of Montana, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~691 students)
Similar student-teacher ratio (~17.7:1)
Next steps
Verify locally before acting on Castle Rock Middle School's federal record.
- Compare Castle Rock Middle School against another school. Compare schools
- Billings Elem'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 Castle Rock Middle School
How many students attend Castle Rock Middle School?
Castle Rock Middle School has 691 students enrolled. It is a middle school in Billings, MT.
What is the student-teacher ratio at Castle Rock Middle School?
The student-teacher ratio at Castle Rock Middle School is 17.7:1, which is 50% higher than the Montana average of 11.8:1 and 13% higher than the national average of 15.7:1.
What is the racial and ethnic makeup of Castle Rock Middle School?
The largest demographic group at Castle Rock Middle School is White at 78.9% of enrollment, in Billings, MT.
What is the Resource Investment Index for Castle Rock Middle School?
Castle Rock Middle School has a Resource Investment Index of 35/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Castle Rock Middle School rank among middle schools in Billings?
By Resource Investment Index, Castle Rock Middle School ranks #7 of 10 middle schools in Billings, MT. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Billings on the city page.
Is Castle Rock Middle School a good school?
Castle Rock Middle School earns 35/100 on the Resource Investment Index, with class sizes larger than 93% of Montana schools. It is also one of the largest schools in Montana. 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 Billings Elem?
Besides Castle Rock Middle School, Billings Elem also operates Lewis & Clark Middle School (741 students), Ben Steele Middle School (740 students), and Meadowlark School (691 students). See the Billings Elem district page for the complete list.
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.