Castlebay Lane Charter

Elementary school·Grades K-5·Charter Porter Ranch, California·91326
Score
89.7/100
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#482
Among 4,688 California elementary schools
#33
In Los Angeles Unified
Top 11%
In California

Score 89.7/100: better than 89% of California elementary schools on 2024-25 state tests. Schools are only compared with others of the same type in the same state. How we score schools

Performance (state tests, 2024-25)

% met or exceeded standard on state tests in California, all students. Colored bars are green when the school is at or above the average for similar California schools.

English language arts
74%
Similar California schools ≈ 47%, better than 89% of them
297 students tested
Math
71%
Similar California schools ≈ 42%, better than 88% of them
297 students tested
Science
64%
Similar California schools ≈ 34%, better than 90% of them
99 students tested
All California schools (ELA / math)
49% / 37%
State average across every school type, 2024-25
All 10 published results by grade and test

As published by California Department of Education. "Hidden" means the state didn't publish the result to protect student privacy.

SubjectGradeTestResultStudents tested
English language artsGrade 3Smarter Balanced ELA63.4101
English language artsGrade 4Smarter Balanced ELA82.597
English language artsGrade 5Smarter Balanced ELA77.899
English language artsAll gradesSmarter Balanced ELA74.4297
MathGrade 3Smarter Balanced Math74.3101
MathGrade 4Smarter Balanced Math75.397
MathGrade 5Smarter Balanced Math64.799
MathAll gradesSmarter Balanced Math71.4297
ScienceGrade 5CAST63.699
ScienceAll gradesCAST63.699

School profile

Grades
K-5
Students
637
Type
Elementary school
Charter school
Yes
Program
Regular

Students

Enrollment
637
Typical elementary school: 464
Free or reduced-price lunch
28%
Typical elementary school: 72%

District and location

School district
City
Los Angeles County

Contact

Address
19010 Castlebay Ln.
Porter Ranch, CA 91326

"Typical" is the middle (median) elementary school in California. Higher or lower is not in itself better or worse. Address, phone and website are as the state reported them to the U.S. Department of Education for 2024-25, so check with the school before visiting. School details: U.S. Department of Education, Common Core of Data (enrollment 2023-24, lunch eligibility 2024-25).

Nearby elementary schools

Straight-line distance. Check the district's attendance zones: living close to a school doesn't guarantee a place.

Location

OpenStreetMap · Google Maps

Castlebay Lane Charter at a glance

Castlebay Lane Charter is a public elementary school (a charter school) in Porter Ranch, California, serving grades K-5. It is part of the Los Angeles Unified school district. It has about 637 students (a typical California elementary school has 464). About 28% of students are eligible for free or reduced-price lunch, compared with 72% at a typical California elementary school, which is useful context when reading test results.

In 2024-25 state tests, 74% in English language arts (similar schools: 47%) and 71% in math (similar schools: 42%) reached the state standard (% met or exceeded standard). On our score, which compares it only with other California elementary schools, it scores 89.7 out of 100: better than 89% of them, ranking #482 of 4,688. Its English language arts result rose by 2 points from the year before. This overview is generated automatically from published state and federal data; figures are rounded, and you can check the originals via the official sources above.

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Page updated 2026-10-12.