allk12 · Rankings · Largest charters · California · High schools

The largest public charter schools in California

This ranking covers the largest public charter schools in California, drawn from 318 qualifying public high schools. Five Keys Independence HS (SF Sheriff's) leads the list at 3,447, against a median of 396 across the ranked schools.

The table below is sortable and filterable, and the full list downloads as a CSV. Figures come from federal NCES enrollment data and, where applicable, state assessment results for 2024-25.

Schools ranked

318

California

Top Students

3,447

Median Students

396

LARGEST CHARTERS · CALIFORNIA

#	School	City	District	Level	Students
1	Five Keys Independence HS (SF Sheriff's)	San Francisco, CA	Five Keys Independence HS (SF Sheriff's) District	High	3,447
2	Options For Youth - Duarte Inc	Pasadena, CA	Options For Youth - Duarte Inc District	High	3,369
3	Birmingham Community Charter High	Lake Balboa, CA	Birmingham Community Charter High District	High	3,162
4	El Camino Real Charter High	Woodland Hills, CA	El Camino Real Charter High District	High	3,046
5	Assurance Learning Academy	Lancaster, CA	Assurance Learning Academy District	High	3,014
6	Palisades Charter High	Pacific Palisades, CA	Palisades Charter High District	High	2,920
7	Alta Vista Innovation High	Hesperia, CA	Alta Vista Innovation High District	High	2,812
8	San Diego Workforce Innovation High	National City, CA	San Diego Workforce Innovation High District	High	2,722
9	Grover Cleveland Charter High	Reseda, CA	Los Angeles Unified	High	2,719
10	Helix High	La Mesa, CA	Helix High District	High	2,554
11	Clayton Valley Charter High	Concord, CA	Clayton Valley Charter High District	High	2,373
12	OCSA	Santa Ana, CA	OCSA District	High	2,346
13	Taft Charter High	Woodland Hills, CA	Los Angeles Unified	High	2,221
14	Steele Canyon High	Spring Valley, CA	Steele Canyon High District	High	2,198
15	Options for Youth-Acton	Fontana, CA	Options for Youth-Acton District	High	2,171
16	Excelsior Charter	Victorville, CA	Excelsior Charter District	High	2,170
17	Chatsworth Charter High	Chatsworth, CA	Los Angeles Unified	High	1,743
18	Crescent View West Public Charter	Fresno, CA	Crescent View West Public Charter District	High	1,703
19	Sylmar Charter High	Sylmar, CA	Los Angeles Unified	High	1,463
20	University High School Charter	Los Angeles, CA	Los Angeles Unified	High	1,385
21	Altus Schools Charter School of San Diego	San Diego, CA	Altus Schools Charter School of San Diego District	High	1,375
22	Reseda Charter High	Reseda, CA	Los Angeles Unified	High	1,339
23	Classical Academy High	Escondido, CA	Classical Academy High District	High	1,336
24	Vista Real Charter High	Oxnard, CA	Vista Real Charter High District	High	1,271
25	Gompers Preparatory Academy	San Diego, CA	Gompers Preparatory Academy District	High	1,175
26	SIATech	Oceanside, CA	SIATech District	High	1,174
27	Options for Youth-San Bernardino	San Bernardino, CA	Options for Youth-San Bernardino District	High	1,168
28	Alain Leroy Locke College Preparatory Academy	Los Angeles, CA	Alain Leroy Locke College Preparatory Academy District	High	1,159
29	Alliance Marine - Innovation and Technology 6-12 Complex	Sun Valley, CA	Alliance Marine - Innovation and Tech 6-12 Complex DIST	High	1,100
30	Making Waves Academy	Richmond, CA	Making Waves Academy District	High	1,078
31	Alliance Gertz-Ressler Richard Merkin 6-12 Complex	Los Angeles, CA	Alliance Gertz-Ressler Richard Merkin 6-12 Complex District	High	1,031
32	California Military Institute	Perris, CA	Perris Union High	High	1,031
33	University Preparatory	Redding, CA	University Preparatory District	High	1,009
34	Alliance Ouchi-O'Donovan 6-12 Complex	Los Angeles, CA	Alliance Ouchi-O'Donovan 6-12 Complex District	High	998
35	New West Charter	Los Angeles, CA	New West Charter District	High	980
36	California School of the Arts - San Gabriel Valley	Duarte, CA	California School of the Arts - San Gabriel Valley District	High	974
37	Escondido Charter High	Escondido, CA	Escondido Charter High District	High	932
38	Port of Los Angeles High	San Pedro, CA	Port of Los Angeles High District	High	916
39	Options for Youth-Victor Valley Charter	Victorville, CA	Options for Youth-Victor Valley Charter District	High	886
40	YouthBuild Charter School of California	Los Angeles, CA	YouthBuild Charter School of California District	High	880
41	Samueli Academy	Santa Ana, CA	Samueli Academy District	High	842
42	Oakland School for the Arts	Oakland, CA	Oakland School for the Arts District	High	828
43	Preuss School UCSD	La Jolla, CA	Preuss School UCSD District	High	825
44	PUC Triumph Charter Academy and PUC Triumph Charter High	Sylmar, CA	PUC Triumph Charter Acad and PUC Triumph Charter High DIST	High	794
45	New Designs Charter	Los Angeles, CA	New Designs Charter District	High	784
46	PUC Comm Charter Mid and PUC Comm Charter Early College High	Lake View Terrace, CA	PUC Comm CHRTR Mid & PUC Comm CHRTR Early College High DIST	High	776
47	Western Sierra Collegiate Academy	Rocklin, CA	Western Sierra Collegiate Academy District	High	776
48	Aspire Langston Hughes Academy	Stockton, CA	Aspire Langston Hughes Academy District	High	772
49	Western Center Academy	Hemet, CA	Hemet Unified	High	762
50	Leroy Greene Academy	Sacramento, CA	Natomas Unified	High	755

Page 1 of 7 · top 318 of 318 ranked. NCES + state assessment data, 2024-25.↓ Download full CSV

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DATA NOTICE

allk12 is independent and not affiliated with, endorsed by, or sponsored by NCES, the US Census Bureau, any state education agency or assessment program, or any other government agency. Source data is compiled from public records and provided "as is," without warranty of accuracy or completeness. You rely on it, and any analysis derived from it, at your own risk. See the full disclaimer.