Oakland City Wire

Castlemont High School had 169 12th-grade students during the 2020-2021 school year, according to the California Department of Education.

Visions In Education had the most 12th-grade students enrolled in California with 1,227.

According to the National Center for Education Services, California is expected to see public and secondary school enrollment decrease three percent from 2017-2029. The state expected to see the largest drop in enrollment is New Mexico with a projected 12 percent decrease, while Washington D.C. is expected to see a 14 percent increase over the same time period.

In a survey conducted by the Public Policy Institute of California, seven percent of respondents said large class sizes was the biggest issue facing California's K-12 schools. In the same survey, 50 percent of the respondents said they did not view the financial resources their local public school was getting as adequate.

Rank	School	Attendance
1	Visions In Education	1,227
2	Granada Hills Charter High School	1,132
3	Eleanor Roosevelt High School	1,090
4	Paramount High School	1,072
5	Central High East Campus	975
6	Polytechnic High School	951
7	Downey High School	925
8	Santiago High School	899
9	Wilson High School	897
10	Millikan High School	890
11	El Camino Real Charter High School	889
12	Earl Warren High School	878
13	Rancho Cucamonga High School	870
14	Chaffey High School	865
15	Fountain Valley High School	853
16	Pittsburg Senior High School	852
17	James Logan High School	846
18	Berkeley High School	836
19	Etiwanda High School	833
20	Sweetwater High School	827
21	Milpitas High School	810
22	San Marcos High School	805
22	Vista Murrieta High School	805
24	Dougherty Valley High School	802
25	Arcadia High School	793
26	Los Alamitos High School	790
27	San Clemente High School	788
28	Los Osos High School	786
29	San Benito High School	776
30	Evergreen Valley High School	766
31	Redondo Union High School	761
32	Pacifica High School	758
33	Cypress High School	753
34	Clovis High School	751
35	Great Oak High School	748
36	California High School	746
37	Paloma Valley High School	744
38	Palisades Charter High School	743
39	Aliso Niguel High School	742
40	Sanger High School	738
41	Dublin High School	737
42	Arnold O. Beckman High School	735
43	Santa Monica High School	734
44	Independence High School	732
45	San Ysidro High School	731
45	Santa Ana High School	731
47	Upland High School	730
47	William J. (Pete) Knight High School	730
49	Temecula Valley High School	727
50	Lowell High School	719
51	Birmingham Community Charter High School	718
52	Eastlake High School	715
53	Alisal High School	706
54	Quartz Hill High School	705
55	Valencia High School	704
56	Ruben S. Ayala High School	696
56	Chaparral High School	696
58	Franklin High School	695
58	Centennial High School	695
60	San Juan Hills High School	694
61	Martin Luther King Jr. High School	693
61	Ridgeview High School	693
63	Lakewood High School	691
64	Calexico High School	690
65	Santa Maria High School	688
66	Cajon High School	687
66	Chino Hills High School	687
66	Bakersfield High School	687
69	Huntington Beach High School	686
70	Amador Valley High School	683
71	Castro Valley High School	681
71	Madera South High School	681
73	Stanislaus Alternative Charter School	678
74	Opportunities for Learning - Baldwin Park	675
74	Grover Cleveland Charter High School	675
76	Lincoln High School	670
77	El Camino High School	666
77	Capistrano Connections Academy	666
79	Yucaipa High School	665
80	Beaumont Senior High School	661
81	Westminster High School	658
81	Liberty High School	658
83	Trabuco Hills High School	657
84	Oxnard High School	656
85	Sunnyside High School	655
85	Heritage High School	655
87	Highland High School	654
88	Montclair High School	652
89	Mission Hills High School	651
90	Mira Monte High School	650
91	Canyon Crest Academy	649
92	Mira Costa High School	648
93	Valencia High School	647
94	Katella High School	644
95	Edison High School	642
96	Modesto High School	636
97	Crescenta Valley High School	635
97	California High School	635
99	Heritage High School	634
100	Coachella Valley High School	629
100	Dana Hills High School	629
100	Murrieta Mesa High School	629
103	John H. Francis Polytechnic High School	628
104	Valley View High School	627
104	Salinas High School	627
104	Everett Alvarez High School	627
107	Channel Islands High School	626
108	Sheldon High School	625
108	San Leandro High School	625
110	La Serna High School	624
111	Troy High School	623
112	Buchanan High School	622
113	Folsom High School	621
114	Stockdale High School	619
115	Summit High School	618
116	Diamond Bar High School	617
116	Burbank High School	617
118	Carlsbad High School	616
118	Glendora High School	616
120	Alhambra High School	615
121	Henry High School	614
122	Tesoro High School	613
123	Clovis North High School	612
124	Granite Hills High School	611
124	Golden Valley High School	611
126	Silver Creek High School	609
126	Schurr High School	609
128	Alexander Hamilton Senior High School	608
129	Montebello High School	607
130	Palmdale High School	606
131	Newbury Park High School	605
132	Redlands Senior High School	604
132	Clovis East High School	604
134	Oak Ridge High School	603
135	Fremont High School	602
135	James C. Enochs High School	602
137	Marina High School	601
138	Burroughs High School	600
139	Monte Vista High School	599
140	Bell Gardens High School	598
141	Menlo-Atherton High School	597
141	Helix High School	597
141	Foothill High School	597
141	John Marshall Senior High School	597
145	Turlock High School	596
145	Homestead High School	596
145	Westview High School	596
145	Rialto High School	596
145	Eastside High School	596
150	one.Charter School	595
151	Chula Vista Senior High School	594
151	Bullard High School	594
153	Van Nuys Senior High School	593
154	Davis Senior High School	592
155	West Ranch High School	591
156	Freedom High School	590
156	Pleasant Grove High School	590
158	Anaheim High School	589
159	Otay Ranch Senior High School	588
160	Hemet High School	585
160	Olympian High School	585
160	Pioneer Valley High School	585
163	Arroyo Valley High School	584
163	Newport Harbor High School	584
165	Escondido High School	583
165	Rancho Bernardo High School	583
167	Garden Grove High School	582
167	Palos Verdes Peninsula High School	582
169	Highland High School	581
169	American High School	581
171	Monta Vista High School	579
171	Claremont High School	579
173	Bloomington High School	578
173	Edison High School	578
175	Alta Loma High School	577
175	Lancaster High School	577
175	Walnut High School	577
175	Hector G. Godinez School	577
179	Culver City High School	576
180	Ontario High School	575
180	San Jacinto High School	575
180	Del Norte High School	575
183	Bonita Vista Senior High School	574
183	La Quinta High School	574
183	Saugus High School	574
186	La Quinta High School	571
186	James A. Garfield Senior High School	571
188	Valhalla High School	570
189	Los Altos High School	569
190	San Ramon Valley High School	568
191	Irvington High School	567
192	Redwood High School	564
193	Poway High School	563
193	Torrey Pines High School	563
193	Rosemead High School	563
193	Arvin High School	563
197	River City High School	562
197	Carlmont High School	562
199	Rio Mesa High School	561
199	Cerritos High School	561