Very Good
#2999 of 9,539 schools in CA
Top 31% in state
Casterlin Elementary
Elementary School · Southern Humboldt Joint Unified
24790 Alderpoint Rd., Blocksburg, CA 95514
Enrollment
36
Student-Teacher
18:1
Score
7.3
Grades
Kindergarten – 8th
Enrollment
36
Student-Teacher
18:1
Score
7.3
Grades
Kindergarten – 8th
Data vintage
2022-23
Data vintage2022-23
How this school compares
California schools
#2,999 of 9,539
In district
#1 of 4
Southern Humboldt Joint Unified
Equity
8.7 / 10
Excellent
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Casterlin Elementary
Elementary School in Blocksburg · grades Kindergarten – 8th. Start here, then compare fit against nearby and district options.
Casterlin High
0.0 mi away. Use as a geographic alternative in the same move search.
Hoaglin-zenia Elementary
9.0 mi away. Use as a geographic alternative in the same move search.
About Casterlin Elementary
Casterlin Elementary is a public elementary school in Blocksburg, CA, part of Southern Humboldt Joint Unified. Casterlin Elementary serves approximately 36 students, and covers grades Kindergarten-8th, and has a 18:1 student-teacher ratio. Casterlin Elementary has a current MySchoolScout rating of 7.3 out of 10 and ranks #2,999 of 9,539 schools in CA.
Structured state assessment records for Casterlin Elementary show 40% math proficiency (multi-year average, 2009-2024) and 51% reading/ELA proficiency (multi-year average, 2009-2024).
- This school 7.3 · Very Good
- District avg 5.0
- CA avg 6.2
What Parents Should Know
At 36 students, Casterlin Elementary is on the smaller side. That usually buys more individual attention and teachers who know every kid by name, with the trade-off of fewer electives and extracurriculars than a larger school can staff. Ask what activities it actually offers.
Casterlin Elementary sits in a rural area, which can mean longer drives for some families. Rural schools are often community anchors with smaller classes, but check transportation, after-school options, and access to specialized services before you commit.
53% of students at Casterlin Elementary were chronically absent in the 2022-23 school year, above the national average. Chronic absenteeism means missing 15 or more school days, and at high rates it drags on classroom pacing for everyone. Ask what the school does to help families get kids to class consistently.
Score Breakdown
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
Casterlin Elementary — Students at Casterlin Elementary score 45% proficient, which is above what's typical for similar communities (expected: 24%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
88.9%
Students qualifying for federal meal assistance
Test Scores CA CAASPP (2023-24)
Based on 22 test records from CA state assessments. About our data
Proficiency Trend
→ StableAverage proficiency (% at or above grade level) across Math & ELA over time.
Source: EdFacts (NCES) and state assessment data. Growth score: 6.8/10.
How Casterlin Elementary Compares
See how Casterlin Elementary performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Programs & Offerings
Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more
Location
24790 Alderpoint Rd., Blocksburg, CA 95514
Nearby Alternatives
Families considering Casterlin Elementary may also want to explore other elementary schools in the area. Van Duzen Elementary (rated 8.2/10, 15.6 miles away, in nearby Mad River), which scores slightly higher. Another option is Stanwood A. Murphy Elementary (rated 8.0/10, 30.1 miles away, in nearby Scotia), which scores slightly higher. Additionally, Leggett Valley Elementary (rated 6.6/10, 26.5 miles away, in nearby Leggett), with a comparable rating. For more schools in Blocksburg, see our Blocksburg schools guide .
Nearby Schools
20 within 30.1 mi| School | Distance | Rating |
|---|---|---|
| Casterlin High Blocksburg | 0.0 mi | — |
| Hoaglin-Zenia Elementary Mad River | 9.0 mi | — |
| South Fork High Miranda | 10.6 mi | 4.8 |
| Miranda Junior High Miranda | 10.6 mi | 3.9 |
| Southern Humboldt Community Eureka | 13.4 mi | — |
| Van Duzen Elementary Mad River | 15.6 mi | 8.2 |
| Southern Trinity High Mad River | 15.6 mi | — |
| Mt. Lassic High (Continuation) Mad River | 15.6 mi | — |
| Osprey Learning Center Redway | 13.6 mi | — |
| Redway Elementary Redway | 13.6 mi | 2.8 |
| Osprey Learning Center (Alternative) Redway | 13.6 mi | — |
| Bridgeville Elementary Bridgeville | 18.3 mi | 3.6 |
| Agnes J. Johnson Charter Weott | 16.8 mi | 5.8 |
| Whitethorn Elementary Whitethorn | 22.6 mi | — |
| Leggett Valley High Leggett | 26.5 mi | — |
| Leggett Valley Elementary Leggett | 26.5 mi | 6.6 |
| Whale Gulch Elementary Whitethorn | 25.8 mi | 5.1 |
| Whale Gulch High Whitethorn | 25.8 mi | — |
| Cuddeback Elementary Carlotta | 30.1 mi | 6.5 |
| Stanwood A. Murphy Elementary Scotia | 30.1 mi | 8.0 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 95514 (ACS 2019-2023 5-Year Estimates) · Data sources
Population
81
College Educated
30.6%
Homeownership
100%
Poverty Rate
0%
Median Age
46.5
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Hornbrook Elementary Hornbrook, CA | 7.3 |
| Oak Run Elementary Oak Run, CA | 7.3 |
| Orcutt School for Independent Study Orcutt, CA | 7.3 |
| West Sonoma County Consortium Sebastopol, CA | 7.3 |
| KIDS TOWN MONTESSORI SCHOOL Vista, CA | 7.2 |
| FEATHER RIVER ADVENTIST SCHOOL Oroville, CA | 7.4 |
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.
Neighborhood Context
- Walk Score
- 3 Car-Dependent
Powered by 
Quick Facts NCES CCD (SY 2022-23)
- Grades
- Kindergarten – 8th
- Enrollment
- 36
- Student-Teacher Ratio
- 18:1
- Teachers (FTE)
- 2
- Free/Reduced Lunch
- 88.9%
- Type
- regular
- Setting
- Remote Rural
- County
- Humboldt County
- Chronic Absenteeism (SY 2022-23)
- 52.8%
- Phone
- (707) 926-5402
Resources & Links
District
Southern Humboldt Joint Unified- District Enrollment
- 645
- Schools in District
- 8
- Per-Pupil Spending
- $18,602
- District Rank
- #1 of 4
Other Schools in This District
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