Enrollment
422
Washington · 2024-25 NCES data
High school (grades 9-12) · Castle Rock, WA
Castle Rock High School
Federal NCES profile for Castle Rock High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 36/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 530099000172
👥 S:T ratio 32
📚 AP courses 20
🌟 Gifted program 30
🎓 Counselors 58
📋 Attendance 42
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Castle Rock High School earns 36/100 on the Resource Investment Index, with class sizes near the Washington median.
- #1 of 3
- public schools in Castle Rock · Resource Index
- 36
- Resource Index · Typical
- 16.9:1
- students per teacher
- 47.0%
- free-lunch eligible
Castle Rock High School has class sizes near the Washington median. Computed live against every Washington school reporting to NCES.
By Resource Investment Index, Castle Rock High School ranks #1 of 3 public schools in Castle Rock, WA.
School address
District: Castle Rock School District · Washington
NCES ID 530099000172 Verify on NCES CCD record →
Teachers (FTE)
25.0
Federal CCD staff survey
Students per teacher
16.9:1
vs 17.6:1 Washington avg
-4% vs state
Free-lunch eligible
47.0%
vs 45.0% Washington avg
+4% vs state
Student-teacher ratio in context
How Castle Rock High School compares with Washington and U.S. medians
What stands out at Castle Rock High School
Castle Rock High School is a mid-sized high school in Castle Rock, Washington, enrolling 422 students.
At 16.9:1, 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 47.0% lands close to the Washington typical range, neither a high- nor low-need campus by this measure.
With 422 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.
Against 493 statewide peers matched on enrollment and economic need, it ranks mid-pack at #340.
Its student body is predominantly White (83% of enrollment) (diversity index 30/100).
On the academic-pipeline side it reports 4 Advanced Placement courses.
Counselor coverage is strong, about 212 students per counselor, inside the American School Counselor Association's recommended 250:1.
Attendance runs somewhat below the norm, with 23.2% of students chronically absent per the 2021-22 civil-rights collection.
The surrounding Castle Rock School District spends $14,883 per pupil, 24% below the Washington average, a leaner-resourced district than most.
The federal civil-rights collection also records 1 expulsion at this campus for 2021-22.
Castle Rock School District also operates Castle Rock Elementary (733 students) and Castle Rock Middle School (316 students) alongside Castle Rock High 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 High School compares
Castle Rock High 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 | 16.9:1 | ▼ 4% | 17.6:1 | 15.7:1 |
| Free-lunch eligible | 47.0% | ▲ 4% | 45.0% | 51.7% |
| Enrollment | 422 | top 43% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
16.9:1
Leaner classes than 31% of US schools, heavier class loads than most.
422
Bigger than 51% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
47.0%
free-lunch eligible
- 4% 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
16.9:1
students per teacher
- 4% below state mean
Top 55% in Washington - lower ratio than 45% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
23.2%
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
Counselors2.0 FTE
Per 212 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 64 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 15.2 per 100 students. Reported via the Civil Rights Data Collection. Includes 1 expulsion.
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 83.4%
Hispanic or Latino 6.9%
Two or More 6.9%
American Indian / Alaska Native 1.2%
Asian 0.9%
Native Hawaiian / Pacific Islander 0.7%
Largest group: White at 83.4% of enrollment.
Student-body diversity index 29.5/100
Simpson diversity index - at 29.5, Castle Rock High School is less mixed than the Washington school average of 53.3.
Programs
AP courses offered 4
Funding & spending
District-wide per-pupil expenditure for Castle Rock School District, which includes Castle Rock High 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 High 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 Middle School | Smaller | Similar economic need | Similar S:T ratio |
| Castle Rock Virtual Academy | Smaller | Lower economic need | No ratio data |
Comparisons are relative to Castle Rock High 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
- 316
- Students per teacher
- 15.8:1
- Resource Index
- 34/100
- Enrollment
- 13
- Students per teacher
- -
- Resource Index
- 30/100
Similar high 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 (~422 students)
Next steps
Verify locally before acting on Castle Rock High School's federal record.
- Compare Castle Rock High 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 High School
How many students attend Castle Rock High School?
Castle Rock High School has 422 students enrolled. It is a high school in Castle Rock, WA.
What is the student-teacher ratio at Castle Rock High School?
The student-teacher ratio at Castle Rock High School is 16.9:1, which is 4% lower than the Washington average of 17.6:1 and 8% 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 High School?
47.0% of students at Castle Rock High School are eligible for free lunch, compared to the Washington average of 45.0%.
What is the racial and ethnic makeup of Castle Rock High School?
The largest demographic group at Castle Rock High School is White at 83.4% of enrollment, in Castle Rock, WA.
What is the Resource Investment Index for Castle Rock High School?
Castle Rock High School has a Resource Investment Index of 36/100 (typical reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Castle Rock High School rank among public schools in Castle Rock?
By Resource Investment Index, Castle Rock High School ranks #1 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 High School a good school?
Castle Rock High School earns 36/100 on the Resource Investment Index, with class sizes near the Washington 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.
What other schools are in Castle Rock School District?
Besides Castle Rock High School, Castle Rock School District also operates Castle Rock Elementary (733 students), Castle Rock Middle School (316 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.