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Castlebay Lane Charter

Public, Charter Grades K-5

531^st

SchoolDigger Rank ?

of 5,857 California Elementary Schools

Better than 91% of California elementary schools

Summary

Castlebay Lane Charter is a high-performing, K-5 elementary school serving 666 students in the Porter Ranch area of Los Angeles, consistently ranking in the top 10% of all California schools.

The school stands out for its strong and consistent academic results, significantly outperforming both Los Angeles Unified and state averages in English, Math, and Science. It achieves these excellent outcomes efficiently, spending less per student than many neighboring schools like Granada Elementary while maintaining a high ranking. Castlebay Lane is part of a notable cluster of top-tier charter schools in the area, including Beckford Charter and Porter Ranch Community, giving families several excellent public school options nearby.

Attendance has improved since the pandemic and is better than the district average, which correlates with the school's high achievement. The school has demonstrated particular strength in supporting students from economically disadvantaged backgrounds. While performance is strong across grades, there is a slight dip in 5th-grade math scores, suggesting a potential area for curriculum focus. Overall, Castlebay Lane Charter represents a model of stable, high-quality education that delivers impressive results for its diverse student community.

666

Students ?

23.7

Student/teacher ratio ?

$16,465

Per pupil spending ?

26.7%

Free/discounted lunch ?

19010 Castlebay Ln.
Porter Ranch, CA 91326-1005

(818) 360-1908

District: Los Angeles Unified

Students who attend Castlebay Lane Charter usually attend:

Middle:	Robert Frost Middle
High:	Northridge Academy High
	Valley Academy of Arts and Sciences

Racial breakdown:

White:

39.9%

Asian:

21.3%

Hispanic:

18.2%

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Compare Castlebay Lane Charter to nearby elementary schools!

At a glance

▬ Ranking trend: Holding steady — 95th percentile in 2013 → 91st in 2025

Strengths

✓Test scores above the California average (72% vs 41% meeting standards)

✓Ranks in the top 9% of California elementary schools

✓Among the top-ranked schools in Los Angeles Unified

Worth a look

!Some student groups rank well below the school's overall statewide standing

!Large classes — about 24 students per teacher

Students meeting standards (2024-2025) ?

This school72%

District avg39%

California avg41%

531^st of 5,857

California public elementary schools ?

Top 9%▲ up 3 pts since 2015

See the entire ranking list of California Elementary Schools →

★★★★★

SchoolDigger rating ?

38^th of 487Elementary Schools in the Los Angeles Unified

791^st of 1,543Los Angeles Unified among California districts

Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	California percentile	Rating
2025	92.2	531 of 5857	90.9%	★★★★★
2024	93.2	495 of 5869	91.6%	★★★★★
2023	91.7	587 of 5859	90.0%	★★★★☆
2022	94.7	387 of 5883	93.4%	★★★★★
2019	85.9	857 of 5789	85.2%	★★★★☆
2018	87.1	790 of 5662	86.0%	★★★★☆
2017	91.6	539 of 5692	90.5%	★★★★★
2016	92.3	483 of 5614	91.4%	★★★★★
2015	88.9	673 of 5611	88.0%	★★★★☆
2013	92.4	289 of 5530	94.8%	★★★★★
2012	93.6	190 of 5390	96.5%	★★★★★
2011	92.5	285 of 5377	94.7%	★★★★★
2010	90.2	425 of 5314	92.0%	★★★★★
2009	89.9	487 of 5193	90.6%	★★★★★
2008	94.5	211 of 5113	95.9%	★★★★★
2007	95.7	186 of 5113	96.4%	★★★★★
2006	92.8	343 of 4818	92.9%	★★★★★
2005	94.4	252 of 4822	94.8%	★★★★★
2004	94.4	261 of 4809	94.6%	★★★★★

Asian

Year	Avg score	Statewide rank	California percentile	Rating
2025	76.4	257 of 1203	78.6%	★★★★☆
2024	74.4	316 of 1205	73.8%	★★★★☆
2023	66.0	497 of 1190	58.2%	★★★☆☆
2022	74.9	277 of 1154	76.0%	★★★★☆
2019	56.9	620 of 1149	46.0%	★★☆☆☆
2018	59.8	557 of 1071	48.0%	★★☆☆☆

Disabled

Year	Avg score	Statewide rank	California percentile	Rating
2022	82.5	264 of 2227	88.1%	★★★★☆
2019	73.3	451 of 2585	82.6%	★★★★☆

Female

Year	Avg score	Statewide rank	California percentile	Rating
2025	90.7	546 of 5597	90.2%	★★★★★
2024	90.1	616 of 5612	89.0%	★★★★☆
2023	91.7	516 of 5609	90.8%	★★★★★
2022	95.0	297 of 5635	94.7%	★★★★★
2019	80.6	1047 of 5492	80.9%	★★★★☆
2018	86.0	767 of 5413	85.8%	★★★★☆

Hispanic

Year	Avg score	Statewide rank	California percentile	Rating
2025	91.7	270 of 5107	94.7%	★★★★★
2024	94.2	195 of 5107	96.2%	★★★★★
2023	95.5	148 of 5087	97.1%	★★★★★
2022	97.9	75 of 5084	98.5%	★★★★★
2019	85.7	476 of 4963	90.4%	★★★★★
2018	79.9	694 of 4830	85.6%	★★★★☆

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2025	89.8	381 of 5460	93.0%	★★★★★
2024	86.2	583 of 5517	89.4%	★★★★☆
2023	90.9	350 of 5363	93.5%	★★★★★
2022	86.6	480 of 5264	90.9%	★★★★★
2019	85.1	488 of 5173	90.6%	★★★★★
2018	79.2	714 of 5084	86.0%	★★★★☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2025	90.6	539 of 5628	90.4%	★★★★★
2024	94.0	355 of 5643	93.7%	★★★★★
2023	89.4	657 of 5638	88.3%	★★★★☆
2022	92.6	473 of 5663	91.6%	★★★★★
2019	86.7	751 of 5510	86.4%	★★★★☆
2018	86.0	803 of 5431	85.2%	★★★★☆

Multi-racial

Year	Avg score	Statewide rank	California percentile	Rating
2022	66.6	227 of 610	62.8%	★★★☆☆
2018	75.3	74 of 339	78.2%	★★★★☆

Special Education

Year	Avg score	Statewide rank	California percentile	Rating
2025	89.7	214 of 2847	92.5%	★★★★★
2023	68.1	500 of 2420	79.3%	★★★★☆

White

Year	Avg score	Statewide rank	California percentile	Rating
2025	62.8	1022 of 2598	60.7%	★★★☆☆
2024	72.1	738 of 2651	72.2%	★★★★☆
2023	68.6	851 of 2661	68.0%	★★★☆☆
2022	71.8	739 of 2726	72.9%	★★★★☆
2019	50.6	1532 of 2834	45.9%	★★☆☆☆
2018	62.6	1095 of 2737	60.0%	★★★☆☆

How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)

Hispanic (2025)95th percentile+4 vs school

Low Socio Economic Status (2025)93rd percentile~ school

Special Education (2025)92nd percentile~ school

Male (2025)90th percentile~ school

Female (2025)90th percentile~ school

Disabled (2022)88th percentile-5 vs school

Asian (2025)79th percentile-12 vs school

Multi-racial (2022)63rd percentile-31 vs school

White (2025)61st percentile-30 vs school

By subject vs California (2024-2025) ?

English Language Arts/Literacy74%+26 vs state

Mathematics71%+34 vs state

Science64%+31 vs state

★

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Schools Near Castlebay Lane Charter

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Immunizations Finance All

School													Students/Teachers											Ranking (2025)				Ranking (2024)				CAST Science (2025)			Smarter Balanced Assessments English Language Arts/Literacy (2025)							Smarter Balanced Assessments Mathematics (2025)							% Completely Immunized (2022)	% Polio (2022)	% Varicella (2022)	% DTP (2022)	% MMR (2022)	Per Pupil Expenditures (2024)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/Discounted Lunch Recipients	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	SchoolDigger Rating (2025)	Average Standard Score (2024)	Statewide Rank (2024)	State Percentile (2024)	Rank Change from Previous Year	CAST Science 5th Grade	CAST Science 8th Grade	CAST Science All Grades	Smarter Balanced Assessments English Language Arts/Literacy 3rd Grade	Smarter Balanced Assessments English Language Arts/Literacy 4th Grade	Smarter Balanced Assessments English Language Arts/Literacy 5th Grade	Smarter Balanced Assessments English Language Arts/Literacy 6th Grade	Smarter Balanced Assessments English Language Arts/Literacy 7th Grade	Smarter Balanced Assessments English Language Arts/Literacy 8th Grade	Smarter Balanced Assessments English Language Arts/Literacy All Grades	Smarter Balanced Assessments Mathematics 3rd Grade	Smarter Balanced Assessments Mathematics 4th Grade	Smarter Balanced Assessments Mathematics 5th Grade	Smarter Balanced Assessments Mathematics 6th Grade	Smarter Balanced Assessments Mathematics 7th Grade	Smarter Balanced Assessments Mathematics 8th Grade	Smarter Balanced Assessments Mathematics All Grades	% Completely Immunized KG	% Polio KG	% Varicella KG	% DTP KG	% MMR KG	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Castlebay Lane Charter	Public, Charter	K-5	19010 Castlebay Ln.	Porter Ranch	91326	Los Angeles County	Los Angeles Unified	Yes	(n/a)	No	(n/a)	(818) 360-1908	666	28	23.7	26.7%	266 (39.9%)	20 (3.0%)	121 (18.2%)	142 (21.3%)	0 (0.0%)	0 (0.0%)	117 (17.6%)	92.2	531^st of 5857 public elementary schools	90.9%		93.2	495^th of 5869 public elementary schools	91.6%	36	63.6		63.6	63.4	82.5	77.8				74.4	74.3	75.3	64.7				71.4	96.4	97.3		98.2		$16,465	$2,284	$14,181
Beckford Charter for Enriched Studies	Public, Charter	K-5	19130 Tulsa St.	Northridge	91326	Los Angeles County	Los Angeles Unified	Yes	(n/a)	No	(n/a)	(818) 360-1924	588	24	24.5	29.9%	180 (30.6%)	4 (0.7%)	216 (36.7%)	105 (17.9%)	0 (0.0%)	1 (0.2%)	82 (13.9%)	96.8	165^th of 5857 public elementary schools	97.2%		96.7	190^th of 5869 public elementary schools	96.8%	25	65.6		65.6	86.5	85.3	82.2				84.7	87.5	82.1	72.2				80.8						$16,449	$2,142	$14,307
Porter Ranch Community	Public	K-8	12450 Mason Ave.	Porter Ranch	91326	Los Angeles County	Los Angeles Unified	No	(n/a)	No	(n/a)	(818) 709-7100	1,312	55	23.8	22.0%	311 (23.7%)	53 (4.0%)	203 (15.5%)	492 (37.5%)	1 (0.1%)	0 (0.0%)	252 (19.2%)	95	332^nd of 5857 public elementary schools	94.3%		95.8	278^th of 5869 public elementary schools	95.3%	54	60.8	56.5	59.2	77.8	81.9	84.7	79.8	83.1	76.1	80.8	75.3	77.5	73.7	66.9	74.0	67.0	73.1						$15,061	$2,209	$12,852
Darby Avenue Elementary	Public	K-5	10818 Darby Ave.	Northridge	91326	Los Angeles County	Los Angeles Unified	No	(n/a)	No	(n/a)	(818) 360-1824	412	18	22.8	55.1%	80 (19.4%)	13 (3.2%)	191 (46.4%)	59 (14.3%)	0 (0.0%)	0 (0.0%)	69 (16.7%)	83.7	977^th of 5857 public elementary schools	83.3%		85.6	927^th of 5869 public elementary schools	84.2%	50	55.4		55.4	60.9	64.7	70.9				65.1	68.1	55.7	60.0				61.3						$22,254	$3,512	$18,742
El Oro Way Charter For Enriched Studies	Public, Charter	K-5	12230 El Oro Way	Granada Hills	91344	Los Angeles County	Los Angeles Unified	Yes	(n/a)	No	(n/a)	(818) 360-2288	434	19	22.8	42.6%	218 (50.2%)	6 (1.4%)	83 (19.1%)	34 (7.8%)	0 (0.0%)	0 (0.0%)	93 (21.4%)	73.5	1452^nd of 5857 public elementary schools	75.2%		69.7	1608^th of 5869 public elementary schools	72.6%	156	30.9		30.9	58.2	54.0	54.4				55.7	73.8	70.8	48.5				64.8						$18,393	$2,262	$16,131
Van Gogh Charter	Public, Charter	K-5	17160 Van Gogh St.	Granada Hills	91344	Los Angeles County	Los Angeles Unified	Yes	(n/a)	No	(n/a)	(818) 360-2141	456	19	24.0	48.9%	178 (39.0%)	11 (2.4%)	182 (39.9%)	30 (6.6%)	0 (0.0%)	1 (0.2%)	54 (11.8%)	90.6	623^rd of 5857 public elementary schools	89.4%		88.1	811^th of 5869 public elementary schools	86.2%	188	55.9		55.9	74.6	67.2	77.6				73.1	72.1	68.7	66.2				69.0						$20,073	$3,475	$16,598
Granada Elementary	Public	K-5	17170 Tribune St.	Granada Hills	91344	Los Angeles County	Los Angeles Unified	No	(n/a)	No	(n/a)	(818) 363-3188	370	18	20.5	93.0%	53 (14.3%)	15 (4.1%)	224 (60.5%)	26 (7.0%)	0 (0.0%)	2 (0.5%)	50 (13.5%)	28.7	4076^th of 5857 public elementary schools	30.4%		41.8	3080^th of 5869 public elementary schools	47.5%	996	6.4		6.4	37.7	33.3	21.7				31.3	43.4	35.2	17.4				32.7	97.5		97.5			$27,076	$4,298	$22,778
Our Community Charter	Public, Charter	K-8	10045 Jumilla Ave.	Chatsworth	91311	Los Angeles County	Our Community Charter District	Yes	(n/a)	No	(n/a)	(818) 350-5000	434	20	21.4	29.3%	187 (43.1%)	23 (5.3%)	154 (35.5%)	28 (6.5%)	1 (0.2%)	0 (0.0%)	37 (8.5%)	77.7	1256^th of 5857 public elementary schools	78.6%		74.4	1390^th of 5869 public elementary schools	76.3%	134	64.6	45.2	55.6	47.8	77.6	70.8	55.1	35.0	69.1	59.9	60.9	69.4	53.2	32.7	27.5	40.5	48.0						$16,139	$361	$15,778
CDS Elementary	Public	K-6	10001 Jumilla Ave.	Chatsworth	91311	Los Angeles County	Los Angeles Unified	No	(n/a)	No	(n/a)	(213) 239-5656	3	2	1.5		0 (0.0%)	1 (33.3%)	1 (33.3%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1 (33.3%)								(n/a)																							$132,430	$24,392	$108,038
Germain Academy For Academic Achievement	Public	K-5	20730 Germain St.	Chatsworth	91311	Los Angeles County	Los Angeles Unified	No	(n/a)	No	(n/a)	(818) 341-5821	564	27	20.8	69.0%	97 (17.2%)	34 (6.0%)	299 (53.0%)	78 (13.8%)	0 (0.0%)	2 (0.4%)	54 (9.6%)	52.9	2441^st of 5857 public elementary schools	58.3%		52.1	2447^th of 5869 public elementary schools	58.3%	6	33.3		33.3	39.5	42.5	50.5				44.6	48.7	42.5	41.9				44.2	91.8	95.5	96.4	93.6	95.5	$22,040	$3,622	$18,418

Frequently Asked Questions about Castlebay Lane Charter

Is Castlebay Lane Charter a good school?

Yes. Castlebay Lane Charter ranks in the top 9.1% of California elementary schools.

What is the racial makeup of Castlebay Lane Charter?

Students at Castlebay Lane Charter are 40% White, 21% Asian, 18% Hispanic, 18% Two or more races, 3% African American.

How many students attend Castlebay Lane Charter?

In the 2024-25 school year, 666 students attended Castlebay Lane Charter.

What schools do graduates of Castlebay Lane Charter attend?

Students who attend Castlebay Lane Charter usually go on to attend:

Middle : Robert Frost Middle
High : Northridge Academy High
High : Valley Academy of Arts and Sciences

What district is Castlebay Lane Charter in?

Los Angeles Unified

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Schools in Porter Ranch, CA

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SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the California Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.