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SCHOOL COMMUNITY·LOS ANGELES UNIFIED·NCES 062271002905

Castlebay Lane Charter

19010 Castlebay Ln., Porter Ranch, CA 91326 · (818) 360-1908 · Los Angeles County
GRADES KG–05ELEMENTARY11-CITYCHARTERREGULAR SCHOOL666 STUDENTS
Enrollment
666
Elementary
DISTRICT 404 · STATE 465
Student : Teacher
23.8:1
28 FTE teachers
DISTRICT 20.0:1 · STATE 22.3:1
Free / Reduced Lunch
27%
178 students
DISTRICT 84% · STATE 65%
Community
2
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
179
Grade 1
84
Grade 2
100
Grade 3
104
Grade 4
99
Grade 5
100
Student demographics
White
26640%
DISTRICT 10% · STATE 20%
Hispanic
12118%
DISTRICT 73% · STATE 56%
Black
203%
DISTRICT 7% · STATE 5%
Asian
14221%
DISTRICT 5% · STATE 12%
Two+
11718%
DISTRICT 5% · STATE 6%
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
34251%
Female
32449%

Discussions

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Test scores

CAASPP 2023-24 . % met or exceeded standard
English Language Arts
72.2%
CA avg 47.1% . +8.2pp since 2014
Math
74.3%
CA avg 35.6% . +10.3pp since 2014
Source: CAASPP. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
73.3%
composite math + reading, all grades
Predicted
63.6%
based on CA schools with similar FRL share
Beats by
+9.8pp
above demographic expectation
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
666
-72 (-10%) vs 2017
Student : Teacher
23.8:1
was 25.9:1
% White
40%
was 42%
% Hispanic
18%
was 19%
% Black
3%
was 3%
% Asian
21%
was 29%
Source: NCES Common Core of Data

About Castlebay Lane Charter

Castlebay Lane Charter operates as a medium-sized elementary-level community in Porter Ranch, California, run under Los Angeles Unified. Current enrollment sits at 666 students spanning grades K through 5. Compared to the state average of about 465 students per school, that is 43% above typical.

Castlebay Lane Charter is one of 784 schools operated by Los Angeles Unified, a district that hosts 406,887 students overall.

For racial and ethnic makeup, Castlebay Lane Charter lists that 40% of students identify as White, with the remaining enrollment distributed across several groups; the rest consists of 21% Asian, 18% Hispanic, 18% multiracial, 3% Black. The wider county runs roughly 31% White, putting the school's mix noticeably more White than the area baseline.

On the income-and-resources front, The school reports having 28 full-time-equivalent teachers, for a student-teacher ratio near 23.8:1. The state averages around 22.3:1, so this campus is higher than the state norm typical. About 27% of enrolled students meet the income threshold for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal. That share is below Los Angeles County's rate of about 70%.

On a residual basis (actual vs predicted given the student mix), Castlebay Lane Charter performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 63.6%, the actual is 73.3%, a residual of +9.8 points.

Across the wider county, Los Angeles County reports that median household income runs about $90,112, roughly 36% of adults have completed at least a four-year degree, and roughly 10% of residents live below the federal poverty line. Across Los Angeles County's 2244 public schools (combined enrollment of about 1,265,907 students), Castlebay Lane Charter is one campus in the mix.

Beckford Charter for Enriched Studies is the nearest neighboring public school, about 1.8 miles from this campus. 8 of the 8 nearest public schools sit inside a five-mile radius. Ranking that nearby cluster on reported proficiency puts Castlebay Lane Charter at 3rd of 8; the average score across the group is 64.3%.

The school occupies a downtown site. Castlebay Lane Charter operates as a public charter school, meaning it is publicly funded but governed independently of the surrounding district's traditional schools.

Looking at the recent track record. Over the past 7-year window, the student count decreased 10%: 738 students in 2018 compared to 666 in 2025. Over the same period, the Asian share declined from 29% to 21%. The student-to-teacher ratio narrowed from 25.9:1 in 2018 to 23.8:1 today.

On the community side, the page collects discussion, questions, and updates around classroom updates, athletics, and weather closures. Parents, students, alumni, and staff are welcome to weigh in.

Los Angeles County at a glance

View full county profile
Population
9,808,667
Census ACS
Median income
$90,112
Household, ACS
Bachelor's+
36%
Adults 25+
Poverty rate
10%
Below federal line
Schools in county
2,244
1,265,907 students

Quick facts

School name
Castlebay Lane Charter
District
Los Angeles Unified
Address
19010 Castlebay Ln., Porter Ranch, CA 91326
Phone
(818) 360-1908
County
Los Angeles County
Level
Elementary
Grade range
KG–05
Total enrollment
666
Teachers (FTE)
28
Student–teacher ratio
23.8:1
Free/Reduced lunch
178 (27%)
Locale
11-City: Large
NCES ID
062271002905
Charter school
Yes
Virtual school
No

Related schools

Other schools in Los Angeles Unified
Other schools in Porter Ranch
Nearby schools

Frequently asked questions

About Castlebay Lane Charter
How large is Castlebay Lane Charter?
Castlebay Lane Charter enrolls approximately 666 students in grades KG-05.
What grades does Castlebay Lane Charter serve?
Castlebay Lane Charter serves grades KG-05.
What is the student-teacher ratio at Castlebay Lane Charter?
The student-to-teacher ratio at Castlebay Lane Charter is approximately 23.8:1 (28 FTE teachers).
What is the racial breakdown of students at Castlebay Lane Charter?
At Castlebay Lane Charter, the student body is approximately 40% White, 18% Hispanic, 3% Black, 21% Asian, 18% Two or more.
Is Castlebay Lane Charter public or private?
Castlebay Lane Charter is a public K-12 school operated as a charter, overseen by Los Angeles Unified.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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