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Welcome to the Castlebay Lane Charter community. What's one thing that would make Castlebay Lane Charter even better?
Community prompt from u/allk12. Replies below.
Enrollment
666
Elementary
DISTRICT 404 · STATE 465
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
A-
allk12 Grade
Scored higher than 82% of California public elementary schools
- ATest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- A-Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- DThree-year trend Change in reading and math proficiency over the last three test years.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded California public elementary schools
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
6
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Kindergarten | 179 | 27% |
| Grade 1 | 84 | 13% |
| Grade 2 | 100 | 15% |
| Grade 3 | 104 | 16% |
| Grade 4 | 99 | 15% |
| Grade 5 | 100 | 15% |
This year's kindergarten class (179) is 79% larger than its 5th grade class (100).
Student demographics
73%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 45% · STATE 62% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Test scores
CAASPP 2024-25 . % met or exceeded standardEnglish Language Arts
74.4%
CA avg 49.1% . +10.4pp since 2014
Math
71.4%
CA avg 37.7% . +7.4pp since 2014
What this means: On the CAASPP, California's statewide test, about 74 of every 100 students at this school read and write at grade level and about 71 of 100 do math at grade level. Across all California schools, those numbers are about 49 and 38. Reading and writing scores are up about 10 points since 2014, while math scores are up about 7 points.
Performance levels, 2024-25
| Subject | Standard Exceeded | Standard Met | Standard Nearly Met | Standard Not Met |
|---|---|---|---|---|
| English Language Arts | 45.8% | 28.6% | 18.9% | 6.7% |
| Math | 46.5% | 24.9% | 19.5% | 9.1% |
Share of tested students at each CAASPP level. Each student counts in one level, so a row adds to about 100%.
CAASPP results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 74.4% | 71.4% |
| 2023-24 | 72.2% | 74.3% |
| 2022-23 | 71.4% | 71.6% |
| 2021-22 | 78.5% | 73.7% |
| 2018-19 | 69.3% | 68.4% |
| 2017-18 | 71.4% | 67.6% |
| 2016-17 | 72.8% | 70.5% |
| 2015-16 | 74.0% | 72.0% |
| 2014-15 | 64.0% | 64.0% |
% met or exceeded standard, all students and all tested grades.
Source: CAASPP. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
73.1%
composite math + reading, all grades
Predicted
63.9%
based on CA schools with similar FRL share
Beats by
+9.3pp
above demographic expectation
What this means: About 73% of students here test proficient in math and reading, compared with the roughly 64% typical for California schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among California's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like Castlebay Lane Charter
Castlebay Lane Charter's state test result (73.1% proficient) is higher than 5 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Castlebay Lane Charter this school | 666 | 26.7% | 73.1% |
| Fiddyment Farm Roseville | 701 | 28.8% | 54.5% |
| Junction Elementary Roseville | 645 | 28.2% | 64.7% |
| Sequoia Elementary Pleasant Hill | 594 | 22.7% | 69.2% |
| North Davis Elementary Davis | 552 | 27.2% | 69.7% |
| Riego Creek Elementary Roseville | 693 | 32.8% | 57.8% |
Matched among California elementary schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Castlebay Lane Charter ranks
Among elementary schools| Measure | This school | In California | In Los Angeles County |
|---|---|---|---|
| State test proficiency ranked highest first | 73.1% | #509 of 5,151 | #114 of 1,126 |
| Math proficiency ranked highest first | 71.4% | #538 of 5,172 ▼ 95 | #118 of 1,129 ▼ 20 |
| Reading proficiency ranked highest first | 74.4% | #519 of 5,172 ▲ 84 | #116 of 1,129 ▲ 21 |
| 3-year test score change ranked biggest drop first | -3.2pp | #913 of 5,116 | #143 of 1,116 |
| Enrollment ranked largest first | 666 | #919 of 5,915 | #161 of 1,300 |
| Students per teacher ranked fewest first | 23.8:1 | #3,582 of 5,352 | #838 of 1,213 |
| Diversity index ranked most diverse first | 73.0% | #298 of 5,354 | #47 of 1,214 |
| Free and reduced lunch ranked highest share first | 26.7% | #4,900 of 5,625 | #1,158 of 1,276 |
| Enrollment change since 2017-18 ranked steepest decline first | -9.8% | #2,717 of 3,837 | #746 of 947 |
Ranked against other public elementary schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
666
+10 (+2%) vs 2020
-17% since 1990-91, when it was 802
Student : Teacher
23.8:1
was 25.2:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 666 | 28 | 23.8:1 | 27% (178) |
| 2023-24 | 637 | 24.5 | 26.0:1 | 22% (143) |
| 2022-23 | 597 | 24 | 24.9:1 | 20% (118) |
| 2020-21 | 656 | 26 | 25.2:1 | 18% (117) |
| 2017-18 | 738 | 28.5 | 25.9:1 | 21% (156) |
| 2015-16 | 771 | 29 | 26.6:1 | 15% (117) |
| 2010-11 | 820 | N/A | N/A | 12% (99) |
| 2000-01 | 800 | 38 | 21.1:1 | 7% (56) |
| 1990-91 | 802 | 31 | 25.9:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Castlebay Lane Charter.
Since 2017-18: students down 10% (738 to 666); teachers down 2% (28.5 to 28).
About Castlebay Lane Charter
Castlebay Lane Charter is a medium-sized elementary school with an address in Porter Ranch, California. Its 666 students are spread across kindergarten through 5. The typical figure for elementary schools in California is about 465 students.
Castlebay Lane Charter is a school in Los Angeles Unified. The district has 784 schools and 406,887 students.
By race and ethnicity, the largest group at Castlebay Lane Charter is White (40%). The remaining students are 21% Asian, 18% Hispanic, 18% multiracial, and 3% Black. Census figures show Los Angeles County is about 31% White. The chance that two students picked at random at Castlebay Lane Charter belong to different racial or ethnic groups, known as the diversity index, is 73%.
Federal staffing data show 28 full-time-equivalent teachers at Castlebay Lane Charter and a ratio of 23.8:1. The average ratio among elementary schools in California is 22.3:1, lower than at this school. The count of students eligible for free or reduced-price lunch equals 27% of enrollment. That is lower than the 70% average for public schools in Los Angeles County.
allk12 grades Castlebay Lane Charter an A-. The grade compares the school only with California public elementary schools, because each state gives its own test.
Based on its free or reduced-price lunch share, the BeatsExpectations model predicts an average proficiency rate on state tests of 63.9% for Castlebay Lane Charter. The school posts 73.1%, 9.3 points above the prediction.
In Los Angeles County (population about 9,808,667), median household income is about $90,112, 36% of adults hold a bachelor's degree or higher, and about 10% of residents live below the federal poverty line. A total of 2,244 public schools operate in Los Angeles County, serving about 1,265,907 students.
The next-closest public school is Beckford Charter for Enriched Studies, about 1.8 miles away. There are at least 8 more public schools inside five miles. Castlebay Lane Charter ranks 3rd of 8 among nearby schools on average proficiency, with 73.1% against a local average of 64.5%.
Federal records code the school's setting as City: Large. Charter status: Castlebay Lane Charter is a public charter school.
Federal data show 656 students in 2020-21 and 666 in 2024-25, a difference of under 3%. Federal data show the ratio falling from 25.2:1 to 23.8:1.
Discussions about Castlebay Lane Charter may include sports tryouts, band and choir, and theater. Questions from prospective families are welcome too.
Los Angeles County at a glance
View full county profilePopulation
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
Related schools
Other schools in Los Angeles Unified
- Grover Cleveland Charter HighHigh · 2,719 students
- North Hollywood Senior HighHigh · 2,444 students
- Phineas Banning Senior HighHigh · 2,422 students
- San Pedro Senior HighHigh · 2,398 students
- Venice Senior HighHigh · 2,293 students
- James A. Garfield Senior HighHigh · 2,237 students
Nearby schools
- Beckford Charter for Enriched Studies1.8 mi · 588
- Porter Ranch Community2.0 mi · 1,312
- Robert Frost Middle2.1 mi · 1,505
- Darby Avenue Elementary2.1 mi · 412
- El Oro Way Charter for Enriched Studies2.5 mi · 434
- Van Gogh Charter2.5 mi · 456
Frequently asked questions
About Castlebay Lane CharterHow 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.