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Very Good

#2753 of 9,539 schools in CA

Top 29% in state

Castlebay Lane Charter

Elementary School · Los Angeles Unified

19010 Castlebay Ln., Porter Ranch, CA 91326

Charter

Enrollment

637

Student-Teacher

26.5:1

Score

7.4

Grades

Kindergarten – 5th

Data vintage2022-23

How this school compares

California schools

#2,753 of 9,539

In Porter Ranch

#2 of 2

public schools

In district

#292 of 769

Los Angeles Unified

Equity

9.4 / 10

Excellent

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Castlebay Lane Charter

7.4/10

Elementary School in Porter Ranch · grades Kindergarten – 5th. Start here, then compare fit against nearby and district options.

Team Hardison

Nearby

1.5 mi away. Use as a geographic alternative in the same move search.

Dubnoff School

Nearby

1.6 mi away. Use as a geographic alternative in the same move search.

About Castlebay Lane Charter

Castlebay Lane Charter is a public elementary school in Porter Ranch, CA, part of Los Angeles Unified. Castlebay Lane Charter serves approximately 637 students, and covers grades Kindergarten-5th, and has a 26.5:1 student-teacher ratio. Castlebay Lane Charter has a current MySchoolScout rating of 7.4 out of 10 and ranks #2,753 of 9,539 schools in CA.

Structured state assessment records for Castlebay Lane Charter show 76% math proficiency (multi-year average, 2009-2024) and 75% reading/ELA proficiency (multi-year average, 2009-2024).

How it compares0.5 pts above district
  • This school 7.4 · Very Good
  • District avg 6.9
  • CA avg 6.2

What Parents Should Know

Castlebay Lane Charter runs 26.5:1 students to teachers, above the national average. That often means bigger classes. Ask how the school supports kids who need extra help, and whether there are teaching assistants or small-group time.

Castlebay Lane Charter is a charter school: publicly funded, but run with more independence than a traditional district school. Many charters are built around a specific model or focus, so it's worth understanding this one's mission, how enrollment works, and how it differs from the district schools nearby.

Score Breakdown

Full Profile · 3/3 metrics
Student Progress6.7Average50%
Year-over-year improvement in student test scores.
View breakdown
Years of Data12
Annual Change-1.24 pts/yr
Data Period2009–2024
TrendDeclining
Academics9.2Excellent30%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency74.3% (2024 CAASPP)
Reading/ELA Proficiency72.2% (2024 CAASPP)
Math vs. State Avg+28.6 pts
Reading vs. State Avg+29.4 pts
Overall Proficiency73% (2024 CAASPP, Math+ELA)
Expected (poverty-adj.)62% (model expectation from 2024 CAASPP)
vs. Expected+11.5 pts
Adjusted Percentile88th
Resources & Environment6.4Average20%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio26.5:1
Per-Pupil Spending$22,687
Chronic Absenteeism19.2%

Castlebay Lane Charter — Students at Castlebay Lane Charter score 73% proficient, which is above what's typical for similar communities (expected: 62%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

22.4%

Students qualifying for federal meal assistance

Test Scores CA CAASPP (2023-24)

Math Proficiency 76.4% (multi-year average, 2009-2024)
School
State
39.4% (2024 CAASPP)
ELA Proficiency 75.1% (multi-year average, 2009-2024)
School
State
45.3% (2024 CAASPP)

Based on 30 test records from CA state assessments. About our data

Proficiency Trend

→ Stable

Average proficiency (% at or above grade level) across Math & ELA over time.

2009
Math
89%
ELA
82%
2010
Math
92%
ELA
85%
2011
Math
94%
ELA
88%
2012
Math
92%
ELA
84%
2014
Math
64%
ELA
64%
2015
Math
72%
ELA
74%
2016
Math
70%
ELA
72%
2017
Math
67%
ELA
71%
2018
Math
68%
ELA
69%
2019
Math
68%
ELA
69%
2022
Math
73%
ELA
78.8%
2024
Math
74.3%
ELA
72.4%

Source: EdFacts (NCES) and state assessment data. Growth score: 6.7/10.

How Castlebay Lane Charter Compares

See how Castlebay Lane Charter performs across key quality dimensions compared to state benchmarks.

Overall Score
7.4/10
71th percentile in CA
Academic
9.2/10
Excellent
Growth
6.7/10
Average
Environment
6.4/10
Average
Gifted & Talented
Yes
Program available

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
22%
Teaching Staff
27:1 student-teacher ratio
24 teachers
Chronic Absenteeism
Students missing 15+ days per year (SY 2022-23)
19.2%

Programs & Offerings

Gifted & Talented Program Available
This school offers a gifted and talented program for qualifying students. · CRDC 2021-22

Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more

Location

19010 Castlebay Ln., Porter Ranch, CA 91326

Nearby Alternatives

Families considering Castlebay Lane Charter may also want to explore other elementary schools in the area. Beckford Charter for Enriched Studies (rated 9.2/10, 1.8 miles away, in nearby Northridge), which scores notably higher. Another option is Porter Ranch Community (rated 8.5/10, 2.0 miles away), which scores notably higher. Additionally, Darby Avenue Elementary (rated 8.4/10, 2.1 miles away, in nearby Northridge), which scores slightly higher. For more schools in Porter Ranch, see our Porter Ranch schools guide .

Nearby Schools

20 within 3.0 mi
School Distance Rating
Team Hardison Porter Ranch 1.5 mi
Dubnoff School Northridge 1.6 mi
Beckford Charter for Enriched Studies Northridge 1.8 mi 9.2
Darby Avenue Elementary Northridge 2.1 mi 8.4
ST EUPHRASIA SCHOOL Granada Hills 1.9 mi 6.8
St. Euphrasia School Granada Hills 1.9 mi
Porter Ranch Community Porter Ranch 2.0 mi 8.5
HERITAGE CHRISTIAN SCHOOL Granada Hills 2.1 mi 4.6
Serenity Kids Academy Granada Hills 2.1 mi
Robert Frost Middle Granada Hills 2.1 mi 9.0
Granada Hills Charter Granada Hills 2.6 mi 8.6
Egremont Schools, Inc. Chatsworth 2.8 mi
EGREMONT SCHOOLS Chatsworth 2.8 mi 6.4
CHAMINADE COLLEGE PREPARATORY MIDDLE SCHOOL Chatsworth 2.9 mi 5.0
Alfred B. Nobel Charter Middle Northridge 3.0 mi 8.7
Van Gogh Charter Granada Hills 2.5 mi 7.2
El Oro Way Charter For Enriched Studies Granada Hills 2.5 mi 7.4
GRANADA PREPARATORY SCHOOL Northridge 2.8 mi 7.8
Our Community Charter Chatsworth 3.0 mi 6.0
CDS Elementary Los Angeles 3.0 mi

Neighborhood Census ACS (2019-2023)

Census data for ZIP 91326 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$148,636

Median Home Value

$1,011,100

Median Rent

$2,995/mo

Population

37,068

College Educated

56.3%

Homeownership

76.2%

Avg Commute

33 min

Poverty Rate

6.2%

Median Age

43.8

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
Akers Elementary Lemoore, CA 7.4
Alisal Community Salinas, CA 7.4
Allen (Ella B.) Elementary Bonita, CA 7.4
American Indian Public Charter School II Oakland, CA 7.4
Anderson Elementary Compton, CA 7.4
Bernardo Elementary Escondido, CA 7.4

Frequently Asked Questions

Common questions about Castlebay Lane Charter

What grades does Castlebay Lane Charter serve?

Castlebay Lane Charter serves students in grades Kindergarten through 5th.

How many students attend Castlebay Lane Charter?

Castlebay Lane Charter has an enrollment of approximately 637 students.

What is the student-teacher ratio at Castlebay Lane Charter?

The student-teacher ratio at Castlebay Lane Charter is 26.5:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Castlebay Lane Charter rank in CA?

Castlebay Lane Charter ranks #2,753 of 9,539 schools in CA.

What is Castlebay Lane Charter's MySchoolScout rating?

Castlebay Lane Charter has a current MySchoolScout rating of 7.4 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 Castlebay Lane Charter?

Based on loaded state assessment records, Castlebay Lane Charter has 76% math proficiency (multi-year average, 2009-2024) and 75% reading/ELA proficiency (multi-year average, 2009-2024).

Is Castlebay Lane Charter a charter school?

Yes, Castlebay Lane Charter is a charter school. Charter schools are publicly funded but independently operated, often with more flexibility in curriculum and teaching methods.

Is Castlebay Lane Charter a Title I school?

No, Castlebay Lane Charter is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Castlebay Lane Charter?

22.4% of students at Castlebay Lane Charter qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.

11 schools nearby View map →

Neighborhood Context

Walk Score
8 Car-Dependent
Transit Score
0 Minimal Transit
Bike Score
14 Somewhat Bikeable

Powered by Walk Score

Quick Facts NCES CCD (SY 2022-23)

Grades
Kindergarten – 5th
Enrollment
637
Student-Teacher Ratio
26.5:1
Teachers (FTE)
24
Free/Reduced Lunch
22.4%
Type
regular
Setting
Large City
County
Los Angeles County
Chronic Absenteeism (SY 2022-23)
19.2%

District

Los Angeles Unified
District Enrollment
419,929
Schools in District
785
Per-Pupil Spending
$22,687
District Rank
#292 of 769

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