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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 · Porter Ranch, CA

A Los Angeles Unified charter elementary school where students score 11 points above what's typical for similar communities.

Charter

19010 Castlebay Ln., Porter Ranch, CA 91326

  • Math 74% vs CA 39% (2024)
  • Reading 72% vs CA 45% (2024)
  • 26.5:1 student-teacher ratio

Academics

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, district spending per student, and attendance.
View breakdown
Student-Teacher Ratio26.5:1
District spending per student$22,687
Chronic Absenteeism19.2%

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

How we calculate scores →

2024 CAASPP proficiency

Most recent published year. School vs. CA average.

Math Proficiency74%(2024 CAASPP)
School
State
39%(2024 CAASPP)
ELA Proficiency72%(2024 CAASPP)
School
State
45%(2024 CAASPP)

Trend

→ Steady

Proficiency is down 12 points across the 16-year record (2009–2024) and has held near 73% recently.

Show all 12 years
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
79%
2024
Math
74%
ELA
72%

Multi-year averages used by the rating model: math 76% (multi-year average, 2009-2024) · reading/ELA 75% (multi-year average, 2009-2024)

Based on 30 test records from CA state assessments and EdFacts (NCES).

Equity & diversity

Shown separately, not included in the overall score

Free/reduced lunch

22.4%

Students qualifying for federal meal assistance

How we rate schools

A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.

See how we rate

The neighborhood

Where Castlebay Lane Charter sits, and what the surrounding area looks like.

Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the Los Angeles map →

Getting around & local context

  • Walk 8Car-Dependent
  • Transit 0Minimal Transit
  • Bike 14Somewhat Bikeable
  • County Safety: Low245/100K

Powered byWalk Score

FBI Uniform Crime Reporting · 2024 · county context, not school-level safety or attendance eligibility. Source details

Source period: 2024. A newer release may be available.

Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)

Median income

$148,636

Median home value

$1,011,100

Median rent

$2,995/mo

College educated

56.3%

Homeownership

76.2%

Poverty rate

6.2%

ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 91326; this is area context, not an attendance boundary.

Programs & students

Programs & Offerings

Gifted & Talented ProgramAvailable
This school offers a gifted and talented program for qualifying students.·CRDC via Urban Institute · SY 2021–22

Compare nearby

Nearby same-level schools

4 from a 5-mile search; district fallback available

SchoolScoreGradesDistanceEnrollmentCompare
Beckford Charter for Enriched StudiesCharter · enrollment unverified9.2K–51.8 mi599Compare →
St Euphrasia SchoolPrivate · tuition6.8privateK–81.9 mi209Compare →
St. Euphrasia SchoolPrivate · tuitionNot ratedK–81.9 mi174Compare →
Porter Ranch CommunityEnrollment path unverified8.5K–82.0 mi1,396Compare →

Distance is proximity only; it is not attendance eligibility.

Charter · enrollment unverified: Potential charter option; enrollment requirements have not been verified.

Private · tuition: Potential private option; tuition and admission requirements have not been verified.

Enrollment path unverified: Potential public school; its attendance or application path has not been classified.

Public and private scores come from different models and are shown side by side, not blended into one ranking.

Los Angeles Unified

Schools in district
785
Rank in district
#292 of 769
District spending per student
$22,687NCES F-33 · FY 2023 · This annual source is three years behind the current year.
District child poverty rate
18.9%Census SAIPE · 2024

Castlebay Lane Charter is listed in Los Angeles Unified; a district label does not verify attendance for an address.

About Castlebay Lane Charter

Castlebay Lane Charter is a public elementary school in Porter Ranch, CA, part of Los Angeles Unified, serving approximately 637 students in grades Kindergarten-5th with a 26.5:1 student-teacher ratio. It holds a MySchoolScout rating of 7.4 out of 10 and ranks #2,753 of 9,539 schools in CA. State assessment records show 76% math proficiency (multi-year average, 2009-2024) and 75% reading/ELA proficiency (multi-year average, 2009-2024).

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.

School factsNCES Common Core of Data (CCD) (SY 2023–24)

Grades
Kindergarten – 5th
Enrollment
637
Student-Teacher Ratio
26.5:1
Teachers (FTE)
24
Type
regular
Setting
Large City
County
Los Angeles County
Chronic Absenteeism (SY 2022-23)
19.2%
Area population (ZIP 91326)
37,068
Area average commute
33 min
Area median age
43.8
About this school's data

Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.

School directory (enrollment, grades, staff, contact)
NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
  • Source period: SY 2023–24. A newer release may be available.
MySchoolScout rating and rank
MySchoolScout ranking model · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
Math proficiency
State department of education · 2024 CAASPP · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: 2024 CAASPP. A newer release may be available.
  • Derived from source records rather than read directly from one field.
Reading/ELA proficiency
State department of education · 2024 CAASPP · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: 2024 CAASPP. A newer release may be available.
  • Derived from source records rather than read directly from one field.
Student progress (growth)
NCES EdFacts · Mixed source periods · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
Neighborhood (income, housing, education)
U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
  • Older source: ACS 2019–2023 5-year estimates. Use as historical context.
  • Reported for the ZCTA for ZIP 91326; this does not measure the attendance area.
Programs (AP/IB, athletics, gifted)
CRDC via Urban Institute · SY 2021–22 · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: SY 2021–22. A newer release may be available.

Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2024; directory SY 2023–24

About our data · How we calculate scores

Related reading

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