Enrollment
316
Washington · 2024-25 NCES data
Middle school (grades 6-8) · Castle Rock, WA
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 34/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 530099000173
👥 S:T ratio 37
🌟 Gifted program 30
🎓 Counselors 36
📋 Attendance 33
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Castle Rock Middle School earns 34/100 on the Resource Investment Index, with class sizes near the Washington median. It is also less racially and ethnically mixed than most Washington schools.
- #2 of 3
- public schools in Castle Rock · Resource Index
- 34
- Resource Index · Typical
- 15.8:1
- students per teacher
- 49.4%
- free-lunch eligible
Castle Rock Middle School has class sizes near the Washington median. Computed live against every Washington school reporting to NCES.
By Resource Investment Index, Castle Rock Middle School ranks #2 of 3 public schools in Castle Rock, WA.
School address
District: Castle Rock School District · Washington
NCES ID 530099000173 Verify on NCES CCD record →
Teachers (FTE)
20.0
Federal CCD staff survey
Students per teacher
15.8:1
vs 17.6:1 Washington avg
-10% vs state
Free-lunch eligible
49.4%
vs 45.0% Washington avg
+10% vs state
Student-teacher ratio in context
How Castle Rock Middle School compares with Washington and U.S. medians
What stands out at Castle Rock Middle School
Castle Rock Middle School is a mid-sized middle school in Castle Rock, Washington, enrolling 316 students.
At 15.8:1, its student-teacher ratio sits close to the Washington median, within a few percentage points of the 17.6:1 state norm, neither notably crowded nor notably small.
Its free-meal eligibility rate of 49.4% lands close to the Washington typical range, neither a high- nor low-need campus by this measure.
With 316 students, its enrollment sits close to the Washington median campus size.
Its Resource Investment Index lands in the lower third of 2,394 scored Washington schools.
Among 370 similarly sized, similarly resourced-need Washington schools statewide, it ranks #314, in the lower tier once campus size and economic need are matched.
Its student body is predominantly White (85% of enrollment), among the less diverse in the state (diversity index 27/100).
Counselor coverage runs a bit thin, about 319 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 26.9% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Castle Rock School District spends $14,883 per pupil, 24% below the Washington average, a leaner-resourced district than most.
Castle Rock School District also operates Castle Rock Elementary (733 students) and Castle Rock High School (422 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 Washington and U.S. means.
| Metric | This school | vs Washington | Washington avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 15.8:1 | ▼ 10% | 17.6:1 | 15.7:1 |
| Free-lunch eligible | 49.4% | ▲ 10% | 45.0% | 51.7% |
| Enrollment | 316 | top 61% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
15.8:1
Leaner classes than 40% of US schools, a middle-of-the-pack class size.
316
Bigger than 35% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
49.4%
free-lunch eligible
- 10% above the Washington average of 45.0%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
15.8:1
students per teacher
- 10% below state mean
Top 44% in Washington - lower ratio than 56% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
26.9%
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
$14,883
per pupil, district-wide
- below Washington avg of $19,487
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
32
in-school suspensions + 9 out-of-school
Suspension rate: 10.1 per 100 students. Combined in-school and out-of-school rate: 13.0 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 85.1%
Hispanic or Latino 7.0%
Two or More 5.7%
Asian 0.9%
American Indian / Alaska Native 0.9%
African American 0.3%
Largest group: White at 85.1% of enrollment.
Student-body diversity index 26.7/100
Simpson diversity index - at 26.7, Castle Rock Middle School is less mixed than the Washington school average of 53.3.
Programs
Funding & spending
District-wide per-pupil expenditure for Castle Rock School District, which includes Castle Rock Middle School.
$14,883
Per student
-24%
vs Washington
Avg $19,487
-10%
vs U.S.
Avg $16,593
Revenue mix
Local 14.9%
State 75.5%
Federal 9.6%
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 |
|---|---|---|---|
| Castle Rock Elementary | Larger | Similar economic need | Higher S:T ratio |
| Castle Rock High School | Larger | Similar economic need | Similar S:T ratio |
| Castle Rock Virtual Academy | Smaller | Lower economic need | No ratio data |
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
- 733
- Students per teacher
- 18.8:1
- Resource Index
- 30/100
- Enrollment
- 422
- Students per teacher
- 16.9:1
- Resource Index
- 40/100
- Enrollment
- 13
- Students per teacher
- -
- Resource Index
- 30/100
Similar middle schools statewide
Matched by enrollment size and by staffing ratio across all of Washington, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~316 students)
Similar student-teacher ratio (~15.8:1)
Next steps
Verify locally before acting on Castle Rock Middle School's federal record.
- Compare Castle Rock Middle School against another school. Compare schools
- Castle Rock School District'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 316 students enrolled. It is a middle school in Castle Rock, WA.
What is the student-teacher ratio at Castle Rock Middle School?
The student-teacher ratio at Castle Rock Middle School is 15.8:1, which is 10% lower than the Washington average of 17.6:1 and 1% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Castle Rock Middle School?
49.4% of students at Castle Rock Middle School are eligible for free lunch, compared to the Washington average of 45.0%.
What is the racial and ethnic makeup of Castle Rock Middle School?
The largest demographic group at Castle Rock Middle School is White at 85.1% of enrollment, in Castle Rock, WA.
What is the Resource Investment Index for Castle Rock Middle School?
Castle Rock Middle School has a Resource Investment Index of 34/100 (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 public schools in Castle Rock?
By Resource Investment Index, Castle Rock Middle School ranks #2 of 3 public schools in Castle Rock, WA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Castle Rock on the city page.
Is Castle Rock Middle School a good school?
Castle Rock Middle School earns 34/100 on the Resource Investment Index, with class sizes near the Washington median. It is also less racially and ethnically mixed than most Washington 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 Castle Rock School District?
Besides Castle Rock Middle School, Castle Rock School District also operates Castle Rock Elementary (733 students), Castle Rock High School (422 students), and Castle Rock Virtual Academy (13 students). See the Castle Rock School District 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.