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SCHOOL COMMUNITY·SOUTHERN HUMBOLDT JOINT UNIFIED·NCES 063759006365

Casterlin Elementary

24790 Alderpoint Rd., Blocksburg, CA 95514 · (707) 926-5402 · Humboldt County
GRADES KG–08ELEMENTARY43-RURALTITLE IREGULAR SCHOOL39 STUDENTS
Enrollment
39
Elementary
DISTRICT 109 · STATE 465
Student : Teacher
19.3:1
2 FTE teachers
DISTRICT 15.6:1 · STATE 22.3:1
Free / Reduced Lunch
95%
37 students
DISTRICT 79% · STATE 65%
Community
0
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Kindergarten
12
Grade 1
6
Grade 2
1
Grade 3
6
Grade 4
4
Grade 5
4
Grade 6
1
Grade 7
3
Grade 8
2
Student demographics
White
1949%
DISTRICT 57% · STATE 20%
Hispanic
821%
DISTRICT 25% · STATE 56%
Two+
923%
DISTRICT 12% · STATE 6%
Native American
38%
DISTRICT 4% · STATE 0%
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
1846%
Female
2154%

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Test scores

CAASPP 2023-24 . % met or exceeded standard
English Language Arts
47.4%
CA avg 47.1% . +14.4pp since 2014
Math
42.1%
CA avg 35.6% . +4.1pp since 2014
Source: CAASPP. All students, all grades. See all years and grades →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
39
+7 (+22%) vs 2017
Student : Teacher
19.3:1
was 10.7:1
% White
49%
was 63%
% Hispanic
21%
was 16%
Source: NCES Common Core of Data

About Casterlin Elementary

Casterlin Elementary is a primary school of minimally staffed scale in Blocksburg, California, one of the schools within Southern Humboldt Joint Unified, teacheing 39 students in grades K through 8. That puts it 92% below the typical public school in California, which averages around 465 students.

Across the 8 schools in Southern Humboldt Joint Unified (647 students total), Casterlin Elementary accounts for its share of the district's footprint.

On the student-mix side, Casterlin Elementary lists that the largest single group is White at 49%, but no single group is in the majority. Beyond that, the school shows 23% multiracial, 21% Hispanic, 8% Native American. By comparison, Humboldt County as a whole is about 72% White, so the school skews visibly less White than its surroundings.

On the income-and-resources front, Staff filings list 2 full-time-equivalent teachers, which works out to roughly 19.3:1 students per teacher. Statewide, the average ratio sits near 22.3:1, putting Casterlin Elementary tighter than the state norm the norm. Roughly 95% of students at Casterlin Elementary qualify for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal. That share is higher than Humboldt County's rate of about 60%.

Across the wider county, Humboldt County reports that median household income runs about $61,160, about 33% of the adult population holds a bachelor's degree or above, and census figures put the poverty rate at about 11%. In all, Humboldt County runs 92 public schools (combined enrollment of about 17,319 students), of which Casterlin Elementary is one.

Nearest neighbor: Casterlin High, around 0.0 miles off. Within ten miles, there are 2 other public schools, a sparser pattern than typical urban areas.

The campus sits in a small-town setting.

Trend over the last 7 years. Casterlin Elementary's enrollment has rose 22% since 2018, when it stood at 32 (now 39). The White share of enrollment shrank from 63% to 49% over that span. The student-to-teacher ratio loosened from 10.7:1 in 2018 to 19.3:1 today.

Inside the community feed, the feed for Casterlin Elementary typically covers sports schedules, lunch menu changes, and school spirit week. Anyone with firsthand experience at this school can post or comment.

Humboldt County at a glance

View full county profile
Population
134,541
Census ACS
Median income
$61,160
Household, ACS
Bachelor's+
33%
Adults 25+
Poverty rate
11%
Below federal line
Schools in county
92
17,319 students

Quick facts

School name
Casterlin Elementary
District
Southern Humboldt Joint Unified
Address
24790 Alderpoint Rd., Blocksburg, CA 95514
Phone
(707) 926-5402
County
Humboldt County
Level
Elementary
Grade range
KG–08
Total enrollment
39
Teachers (FTE)
2
Student–teacher ratio
19.3:1
Free/Reduced lunch
37 (95%)
Locale
43-Rural: Remote
NCES ID
063759006365
Charter school
No
Virtual school
No

Related schools

Other schools in Southern Humboldt Joint Unified
Other schools in Blocksburg
Nearby schools

Frequently asked questions

About Casterlin Elementary
How large is Casterlin Elementary?
Casterlin Elementary enrolls approximately 39 students in grades KG-08.
What grades does Casterlin Elementary serve?
Casterlin Elementary serves grades KG-08.
How many students per teacher at Casterlin Elementary?
Approximately 19.3:1 students per teacher at Casterlin Elementary.
What is the racial breakdown of students at Casterlin Elementary?
At Casterlin Elementary, the student body is approximately 49% White, 21% Hispanic, 23% Two or more.
Is Casterlin Elementary public or private?
Casterlin Elementary is a public K-12 school, overseen by Southern Humboldt Joint Unified.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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