Very Good
#2999 of 9,539 schools in CA
Top 31% in state
Casterlin Elementary
Elementary School · Southern Humboldt Joint Unified · Blocksburg, CA
A Southern Humboldt Joint Unified elementary school where students score 20 points above what's typical for similar communities.
24790 Alderpoint Rd., Blocksburg, CA 95514
- Math 42% vs CA 36% (2024)
- Reading 47% vs CA 47% (2024)
- 18:1 student-teacher ratio
Academics
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
Students at Casterlin Elementary score 45% proficient, which is above what's typical for similar communities (expected: 24%).
2024 CAASPP proficiency
Most recent published year. School vs. CA average.
Trend
↓ DecliningProficiency has fallen 15 points since 2017, to 45% in 2024, across a 16-year record (2009–2024).
Show all 11 years
Multi-year averages used by the rating model: math 40% (multi-year average, 2009-2024) · reading/ELA 51% (multi-year average, 2009-2024)
Based on 22 test records from CA state assessments and EdFacts (NCES).
Equity & diversity
Shown separately, not included in the overall scoreFree/reduced lunch
88.9%
Students qualifying for federal meal assistance
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateThe neighborhood
Where Casterlin Elementary sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries.
Getting around & local context
- Walk 3Car-Dependent
- County Safety: Average580/100K
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FBI Uniform Crime Reporting · 2024 · county context, not school-level safety or attendance eligibility. Source details
Source period: 2024. A newer release may be available.
Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)
College educated
30.6%
Homeownership
100%
Poverty rate
0%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 95514; this is area context, not an attendance boundary.
Programs & students
Programs & Offerings
Compare nearby
Nearby same-level schools
3 in Southern Humboldt Joint Unified
| School | Score | Grades | Distance | Enrollment | Compare |
|---|---|---|---|---|---|
| Osprey Learning Center (alternative)Enrollment path unverified | Not rated | K–12 | Not available | 2 | Compare → |
| Redway ElementaryEnrollment path unverified | 2.8 | K–6 | Not available | 271 | Compare → |
| Whitethorn ElementaryEnrollment path unverified | Not rated | K–6 | Not available | 19 | Compare → |
Distance is proximity only; it is not attendance eligibility.
Enrollment path unverified: Potential public school; its attendance or application path has not been classified.
Southern Humboldt Joint Unified
- Schools in district
- 8
- Rank in district
- #1 of 4
- District spending per student
- $18,602NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 26.4%Census SAIPE · 2024
Casterlin Elementary is listed in Southern Humboldt Joint Unified; a district label does not verify attendance for an address.
About Casterlin Elementary
Casterlin Elementary is a public elementary school in Blocksburg, CA, part of Southern Humboldt Joint Unified, serving approximately 36 students in grades Kindergarten-8th with a 18:1 student-teacher ratio. It holds a MySchoolScout rating of 7.3 out of 10 and ranks #2,999 of 9,539 schools in CA. State assessment records show 40% math proficiency (multi-year average, 2009-2024) and 51% reading/ELA proficiency (multi-year average, 2009-2024).
Frequently asked questions
Common questions about Casterlin Elementary
What grades does Casterlin Elementary serve?
Casterlin Elementary serves students in grades Kindergarten through 8th.
How many students attend Casterlin Elementary?
Casterlin Elementary has an enrollment of approximately 36 students.
What is the student-teacher ratio at Casterlin Elementary?
The student-teacher ratio at Casterlin Elementary is 18:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Casterlin Elementary rank in CA?
Casterlin Elementary ranks #2,999 of 9,539 schools in CA.
What is Casterlin Elementary's MySchoolScout rating?
Casterlin Elementary has a current MySchoolScout rating of 7.3 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Casterlin Elementary?
Based on loaded state assessment records, Casterlin Elementary has 40% math proficiency (multi-year average, 2009-2024) and 51% reading/ELA proficiency (multi-year average, 2009-2024).
Is Casterlin Elementary a charter school?
No, Casterlin Elementary is not a charter school. It is a traditional public school operated by the local school district.
Is Casterlin Elementary a Title I school?
No, Casterlin Elementary is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Casterlin Elementary?
88.9% of students at Casterlin Elementary qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
School factsNCES Common Core of Data (CCD) (SY 2023–24)
- Grades
- Kindergarten – 8th
- Enrollment
- 36
- Student-Teacher Ratio
- 18:1
- Teachers (FTE)
- 2
- Type
- regular
- Setting
- Remote Rural
- County
- Humboldt County
- Chronic Absenteeism (SY 2022-23)
- 52.8%
- Phone
- (707) 926-5402
- Area population (ZIP 95514)
- 81
- Area median age
- 46.5
About this school's data
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.
- School directory (enrollment, grades, staff, contact)
- NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
- Source period: SY 2023–24. A newer release may be available.
- MySchoolScout rating and rank
- MySchoolScout ranking model · Low confidence
- Vintage not available. Do not use this measure alone.
- Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
- Math proficiency
- State department of education · 2024 CAASPP · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2024 CAASPP. A newer release may be available.
- Derived from source records rather than read directly from one field.
- Reading/ELA proficiency
- State department of education · 2024 CAASPP · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2024 CAASPP. A newer release may be available.
- Derived from source records rather than read directly from one field.
- Student progress (growth)
- NCES EdFacts · Mixed source periods · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
- Neighborhood (income, housing, education)
- U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
- Older source: ACS 2019–2023 5-year estimates. Use as historical context.
- Reported for the ZCTA for ZIP 95514; this does not measure the attendance area.
- Programs (AP/IB, athletics, gifted)
- CRDC via Urban Institute · SY 2021–22 · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: SY 2021–22. A newer release may be available.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2024; directory SY 2023–24
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