- Enrollment
- 272
- Students per teacher
- 22.7:1
- Resource Index
- 13/100
Elementary school (grades K-5) · Blocksburg, CA
Casterlin Elementary
Federal NCES profile for Casterlin Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 41/100.
2024-25 NCES dataElementary school (grades K-5)NCES 063759006365
👥 S:T ratio 22
🌟 Gifted program 70
🎓 Counselors 61
📋 Attendance 10
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Casterlin Elementary earns 41/100 on the Resource Investment Index, with class sizes near the California median. It is also one of the smallest schools in California.
- 41
- Resource Index · Typical
- 19.5:1
- students per teacher
- 78.6%
- free-lunch eligible
- 39
- students enrolled
Casterlin Elementary has class sizes near the California median. Computed live against every California school reporting to NCES.
School address
District: Southern Humboldt Joint Unified · California
NCES ID 063759006365 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+8 students YoY
Casterlin Elementary grew from 28 students in 2022-23 to 36 in 2023-24 (+28.6%).
Teacher FTE lost 3.0 → 2.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Growing CCD campus
+8 students YoY 063759006365 · Blocksburg, CA Elementary · SMALL · TRAD
39 enr · 19.5:1 · 78.6% lunch · RII 41
Nearest enrollment peer: Redway Elementary (272 students)
Casterlin Elementary grew from 28 students in 2022-23 to 36 in 2023-24 (+28.6%). Teacher FTE lost 3.0 → 2.0 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
Casterlin Elementary in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Redway Element
Redway Elementary
272 students
- South Fork Hig
South Fork High
211 students
- Miranda Junior 88
Miranda Junior High
88 students
- This school 39
Casterlin Elementary
39 students
- Whitethorn Ele 16
Whitethorn Elementary
16 students
- Osprey Learnin 9
Osprey Learning Center
9 students
What this shows Casterlin Elementary reports 39 students on the CCD universe file.
How Casterlin Elementary compares
Casterlin Elementary is a growing campus on CCD: ratios and free-lunch share vs California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 19.5:1 | ▼ 9% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 78.6% | ▲ 42% | 55.5% | 51.7% |
| Enrollment | 39 | top 95% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
19.5:1
Leaner classes than 18% of US schools, heavier class loads than most.
39
Bigger than 5% of US schools by enrollment, a small campus.
Equity indicators methodology
Economic need
78.6%
free-lunch eligible
- 42% 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
19.5:1
students per teacher
- 9% below state mean
Top 31% in California - lower ratio than 69% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
35.9%
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
$18,602
per pupil, district-wide
- below California avg of $18,665
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors0.2 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.
Student demographics
White 48.7%
Two or More 23.1%
Hispanic or Latino 20.5%
American Indian / Alaska Native 7.7%
Largest group: White at 48.7% of enrollment.
Student-body diversity index 66.2/100
Simpson diversity index - at 66.2, Casterlin Elementary is more mixed than the California school average of 46.0.
Programs
Gifted & talented Yes
District finance for Southern Humboldt Joint Unified reports $18,602 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Casterlin Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Redway Elementary | Larger | Lower economic need | Higher S:T ratio |
| South Fork High | Larger | Lower economic need | Lower S:T ratio |
| Miranda Junior High | Larger | Lower economic need | Lower S:T ratio |
| Whitethorn Elementary | Smaller | Similar economic need | Lower S:T ratio |
| Osprey Learning Center | Smaller | No free-lunch data | No ratio data |
Comparisons are relative to Casterlin Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 211
- Students per teacher
- 14.1:1
- Resource Index
- 39/100
- Enrollment
- 88
- Students per teacher
- 17.6:1
- Resource Index
- 15/100
- Enrollment
- 16
- Students per teacher
- 8:1
- Resource Index
- 49/100
- Enrollment
- 9
- Students per teacher
- -
- Resource Index
- 57/100
Nationwide elementary 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 (~39 students)
Frequently asked questions about Casterlin Elementary
How many students attend Casterlin Elementary?
Casterlin Elementary has 39 students enrolled. It is an elementary school in Blocksburg, CA. CCD year-over-year: 28 (2022-23) → 36 (2023-24), up 8.
What is the student-teacher ratio at Casterlin Elementary?
The student-teacher ratio at Casterlin Elementary is 19.5:1, which is 9% lower than the California average of 21.5:1 and 24% 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 Casterlin Elementary?
78.6% of students at Casterlin Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Casterlin Elementary?
The largest demographic group at Casterlin Elementary is White at 48.7% of enrollment, in Blocksburg, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 66.2/100.
What is the Resource Investment Index for Casterlin Elementary?
Casterlin Elementary has a Resource Investment Index of 41/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
What other schools are in Southern Humboldt Joint Unified?
Besides Casterlin Elementary, Southern Humboldt Joint Unified also operates Redway Elementary (272 students), South Fork High (211 students), and Miranda Junior High (88 students). See the Southern Humboldt Joint Unified district page for the complete list.