Casterlin Elementary
24790 Alderpoint Road, Blocksburg, CA 95514-9308
Summary
Casterlin Elementary is badly underperforming.
Only 27.3% of students met California's reading standard, and it is quickly trending down.
Math is weaker: 23.1% of students met California's math standard, and it is quickly trending down.
Proficiency stats
| Current Reading Proficiency | 27.3% |
| Current Math Proficiency | 23.1% |
| Reading State Rank | N/A |
| Math State Rank | N/A |
School information
| Student / Teacher Ratio | 20:1 |
| Student enrollment (2024–25) | 39 |
| Low-Income Students | 37 (94.9%) |
| English Learners | 0 (0.0%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | No |
| Magnet school | No |
Test score trends
Reading fell 13.6 points from last year and fell 20.1 points over the full period. Math fell 17.8 points from last year and fell 19.0 points over the full period.
•Math -19.0 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
Race and ethnicity breakdown unavailable.
Distribution of Scores by Grade
Grade-level score distribution unavailable.
Low-Income vs Non-Low-Income
Results for both income groups are unavailable, so a current reading gap cannot be calculated.
•English Learners vs English Native
Results for both language groups are unavailable, so a current reading gap cannot be calculated.
Math Proficiency Scores
2026 state test results
Race and Ethnicity
Race and ethnicity breakdown unavailable.
Distribution of Scores by Grade
Grade-level score distribution unavailable.
Low-Income vs Non-Low-Income
Results for both income groups are unavailable, so a current math gap cannot be calculated.
•English Learners vs English Native
Results for both language groups are unavailable, so a current math gap cannot be calculated.
How we compare income gaps
“Typical” means the median gap across 802 schools for reading and 801 for math. The comparison uses 2026 California K–8 schools with at least 20 tested students in each income group and a reported low-income student population. Each school counts once. Its gap is non-low-income proficiency minus low-income proficiency, including negative gaps. California state test data
Understanding this school
How does Casterlin Elementary compare within the district?
Casterlin Elementary is No. 2 in reading and No. 1 in math proficiency among the 2 K–8 schools in Southern Humboldt Joint Unified with 2026 results.
Explore the district’s schoolsHow does Casterlin Elementary compare with other schools in Humboldt County?
Casterlin Elementary is No. 17 in reading and No. 16 in math proficiency among the 21 K–8 schools in Humboldt County with 2026 results.
Explore schools in Humboldt CountyWhich schools should I compare?
Schools serving K–8 in the same district.
| School | Math | Reading |
|---|---|---|
| Casterlin ElementaryThis school | 23.1% | 27.3% |
| Osprey Learning Center (Alternative) | 18.2% | 50.0% |
