Enrollment
42
California · 2024-25 NCES data
Elementary school (grades K-5) · Castella, CA
Castle Rock Elementary
Federal NCES profile for Castle Rock Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 25/100.
2024-25 NCES dataElementary school (grades K-5)NCES 060777000739
👥 S:T ratio 44
🌟 Gifted program 30
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Castle Rock Elementary earns 25/100 on the Resource Investment Index, even as it posts class sizes smaller than 91% of California schools. It is also one of the smallest schools in California.
- 25
- Resource Index · Lower
- 14:1
- small classes for California
- 65.7%
- free-lunch eligible
- 42
- students enrolled
Castle Rock Elementary has class sizes smaller than 91% of California schools. Computed live against every California school reporting to NCES.
School address
District: Castle Rock Union Elementary · California
NCES ID 060777000739 Verify on NCES CCD record →
Teachers (FTE)
3.0
Federal CCD staff survey
Students per teacher
14:1
vs 21.5:1 California avg
-35% vs state
Free-lunch eligible
65.7%
vs 55.5% California avg
+18% vs state
Student-teacher ratio in context
How Castle Rock Elementary compares with California and U.S. medians
What stands out at Castle Rock Elementary
Castle Rock Elementary is a higher-need, small elementary school in Castella, California, enrolling 42 students.
Classes run notably small here: at 14:1, Castle Rock Elementary is leaner than roughly 91% of California schools and 35% under the state's 21.5:1 norm, more adult attention per pupil than most peers.
Its free-meal eligibility rate of 65.7% lands close to the California typical range, neither a high- nor low-need campus by this measure.
This is a small campus: fewer students than 95% of California schools, with 42 enrolled.
Its Resource Investment Index lands in the lower third of 9,998 scored California schools.
Among 133 similarly sized, similarly resourced-need California schools statewide, it ranks #113, in the lower tier once campus size and economic need are matched.
Its student body is led by White (67%) and Hispanic or Latino (21%) (diversity index 50/100).
Chronic absenteeism is elevated: 42.9% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Castle Rock Union Elementary spends $22,420 per pupil, 36% above the California average, a better-resourced district than most.
Castle Rock Union Elementary operates only this one school, so Castle Rock Elementary has no district-mates to compare against locally. At 42 students, it is also a small operation, on the smaller end of California's single-school districts.
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 Elementary compares
Castle Rock Elementary on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 14:1 | ▼ 35% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 65.7% | ▲ 18% | 55.5% | 51.7% |
| Enrollment | 42 | top 95% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
14:1
Leaner classes than 57% of US schools, a middle-of-the-pack class size.
42
Bigger than 5% of US schools by enrollment, a small campus.
Equity indicators (what these measure)
Economic need
65.7%
free-lunch eligible
- 18% above the California average of 55.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
14:1
students per teacher
- 35% below state mean
Top 9% in California - lower ratio than 91% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
42.9%
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
$22,420
per pupil, district-wide
- above California avg of $16,509
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
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.
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 66.7%
Hispanic or Latino 21.4%
American Indian / Alaska Native 9.5%
Two or More 2.4%
Largest group: White at 66.7% of enrollment.
Student-body diversity index 50.0/100
Simpson diversity index - at 50.0, Castle Rock Elementary is more mixed than the California school average of 46.0.
Programs
Funding & spending
District-wide per-pupil expenditure for Castle Rock Union Elementary, which includes Castle Rock Elementary.
$22,420
Per student
+36%
vs California
Avg $16,509
+35%
vs U.S.
Avg $16,593
Revenue mix
Local 32.0%
State 60.8%
Federal 7.1%
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.
Similar elementary schools statewide
Matched by enrollment size and by staffing ratio across all of California, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~42 students)
Similar student-teacher ratio (~14:1)
Next steps
Verify locally before acting on Castle Rock Elementary's federal record.
- Compare Castle Rock Elementary against another school. Compare schools
- Castle Rock Union Elementary'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 Elementary
How many students attend Castle Rock Elementary?
Castle Rock Elementary has 42 students enrolled. It is an elementary school in Castella, CA.
What is the student-teacher ratio at Castle Rock Elementary?
The student-teacher ratio at Castle Rock Elementary is 14:1, which is 35% lower than the California average of 21.5:1 and 11% lower 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 Elementary?
65.7% of students at Castle Rock Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Castle Rock Elementary?
The largest demographic group at Castle Rock Elementary is White at 66.7% of enrollment, in Castella, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 50.0/100.
What is the Resource Investment Index for Castle Rock Elementary?
Castle Rock Elementary has a Resource Investment Index of 25/100 (lower reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
Is Castle Rock Elementary a good school?
Castle Rock Elementary earns 25/100 on the Resource Investment Index, even as it posts class sizes smaller than 91% of California schools. It is also one of the smallest schools in California. 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 Union Elementary?
None reported; Castle Rock Union Elementary operates only Castle Rock Elementary as a public school district in NCES's records.
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.