Granada Hills Charter High School had the most 11th-grade students enrolled in California with 1,195.
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 | Granada Hills Charter High School | 1,195 |
| 2 | Eleanor Roosevelt High School | 1,168 |
| 3 | Downey High School | 1,108 |
| 4 | Central High East Campus | 1,022 |
| 5 | Polytechnic High School | 1,007 |
| 6 | Paramount High School | 995 |
| 7 | Santiago High School | 977 |
| 8 | Visions In Education | 969 |
| 9 | Vista Murrieta High School | 930 |
| 10 | San Marcos High School | 929 |
| 11 | Rancho Cucamonga High School | 920 |
| 12 | El Camino Real Charter High School | 913 |
| 13 | Wilson High School | 892 |
| 14 | Etiwanda High School | 891 |
| 15 | Fountain Valley High School | 885 |
| 16 | Earl Warren High School | 866 |
| 17 | Dougherty Valley High School | 861 |
| 18 | Assurance Learning Academy | 857 |
| 19 | Pittsburg Senior High School | 851 |
| 20 | Millikan High School | 849 |
| 21 | Madera South High School | 847 |
| 22 | James Logan High School | 844 |
| 23 | Upland High School | 822 |
| 23 | Berkeley High School | 822 |
| 25 | Lakewood High School | 803 |
| 26 | Chaffey High School | 802 |
| 27 | Santa Ana High School | 799 |
| 28 | Birmingham Community Charter High School | 797 |
| 29 | Opportunities for Learning - Baldwin Park | 791 |
| 29 | Great Oak High School | 791 |
| 29 | Pioneer Valley High School | 791 |
| 32 | Sanger High School | 784 |
| 33 | Alisal High School | 783 |
| 34 | Dublin High School | 778 |
| 35 | Los Alamitos High School | 775 |
| 36 | Martin Luther King Jr. High School | 773 |
| 37 | Pacifica High School | 772 |
| 38 | Calexico High School | 767 |
| 39 | Evergreen Valley High School | 766 |
| 40 | Milpitas High School | 763 |
| 41 | Santa Maria High School | 761 |
| 42 | San Benito High School | 760 |
| 43 | Paloma Valley High School | 752 |
| 44 | Huntington Beach High School | 751 |
| 45 | Arnold O. Beckman High School | 747 |
| 46 | Sweetwater High School | 745 |
| 46 | Chaparral High School | 745 |
| 48 | Centennial High School | 744 |
| 49 | Redondo Union High School | 735 |
| 50 | Arcadia High School | 730 |
| 51 | Valencia High School | 727 |
| 52 | Heritage High School | 724 |
| 53 | Temecula Valley High School | 723 |
| 53 | San Juan Hills High School | 723 |
| 55 | San Diego Workforce Innovation High School | 720 |
| 56 | Lowell High School | 719 |
| 56 | Los Osos High School | 719 |
| 58 | Palisades Charter High School | 715 |
| 59 | Cypress High School | 708 |
| 60 | Chino Hills High School | 706 |
| 60 | Trabuco Hills High School | 706 |
| 60 | California High School | 706 |
| 63 | Summit High School | 705 |
| 63 | Heritage High School | 705 |
| 65 | Franklin High School | 702 |
| 65 | Aliso Niguel High School | 702 |
| 67 | Santa Monica High School | 701 |
| 68 | Sunnyside High School | 700 |
| 69 | Quartz Hill High School | 699 |
| 70 | Lincoln High School | 698 |
| 70 | Montclair High School | 698 |
| 70 | Golden Valley High School | 698 |
| 73 | Beaumont Senior High School | 697 |
| 73 | Schurr High School | 697 |
| 75 | Yucaipa High School | 695 |
| 76 | Grover Cleveland Charter High School | 691 |
| 77 | Katella High School | 687 |
| 77 | California High School | 687 |
| 79 | Amador Valley High School | 686 |
| 80 | Liberty High School | 685 |
| 81 | San Leandro High School | 683 |
| 82 | Ridgeview High School | 681 |
| 83 | Clovis High School | 677 |
| 84 | Eastlake High School | 675 |
| 85 | Clovis East High School | 673 |
| 86 | Independence High School | 672 |
| 86 | Buchanan High School | 672 |
| 88 | Anaheim High School | 671 |
| 89 | Lancaster High School | 670 |
| 89 | Del Norte High School | 670 |
| 89 | Mission Hills High School | 670 |
| 92 | Bakersfield High School | 668 |
| 93 | Cajon High School | 667 |
| 94 | William J. (Pete) Knight High School | 665 |
| 95 | Sheldon High School | 664 |
| 96 | San Clemente High School | 663 |
| 97 | Clovis North High School | 662 |
| 98 | American High School | 661 |
| 99 | El Camino High School | 660 |
| 100 | Salinas High School | 658 |
| 101 | Ruben S. Ayala High School | 656 |
| 102 | Mira Monte High School | 655 |
| 103 | Channel Islands High School | 654 |
| 104 | Westminster High School | 653 |
| 105 | Crescenta Valley High School | 651 |
| 106 | Valencia High School | 650 |
| 107 | John F. Kennedy High School | 648 |
| 108 | Valley View High School | 645 |
| 109 | Patriot High School | 644 |
| 110 | Coachella Valley High School | 643 |
| 111 | Troy High School | 642 |
| 111 | Edison High School | 642 |
| 113 | San Jacinto High School | 641 |
| 114 | Saugus High School | 639 |
| 114 | Segerstrom High School | 639 |
| 116 | Alexander Hamilton Senior High School | 638 |
| 117 | Silver Creek High School | 634 |
| 117 | Highland High School | 634 |
| 119 | Oxnard High School | 633 |
| 119 | San Pedro Senior High School | 633 |
| 121 | La Serna High School | 632 |
| 121 | Pleasant Grove High School | 632 |
| 123 | Folsom High School | 631 |
| 124 | Sunny Hills High School | 629 |
| 125 | Torrey Pines High School | 628 |
| 125 | Diamond Bar High School | 628 |
| 127 | Bell Gardens High School | 627 |
| 128 | Rialto High School | 626 |
| 128 | Arvin High School | 626 |
| 130 | Edison High School | 624 |
| 130 | Henry High School | 624 |
| 132 | Freedom High School | 622 |
| 133 | Ernest Righetti High School | 621 |
| 133 | Burroughs High School | 621 |
| 135 | La Quinta High School | 620 |
| 136 | Burbank High School | 618 |
| 136 | Eastside High School | 618 |
| 138 | Oak Hills High School | 617 |
| 139 | Monte Vista High School | 616 |
| 139 | Canyon Crest Academy | 616 |
| 141 | Arroyo Valley High School | 615 |
| 141 | James A. Garfield Senior High School | 615 |
| 143 | Oak Ridge High School | 612 |
| 144 | Chula Vista Senior High School | 611 |
| 145 | Redwood High School | 610 |
| 146 | Homestead High School | 609 |
| 146 | Marina High School | 609 |
| 148 | Newbury Park High School | 608 |
| 148 | Mira Mesa High School | 608 |
| 150 | Helix High School | 607 |
| 150 | Mira Costa High School | 607 |
| 152 | West Ranch High School | 606 |
| 153 | Castro Valley High School | 605 |
| 154 | Murrieta Mesa High School | 604 |
| 155 | Fontana High School | 603 |
| 156 | Grossmont High School | 602 |
| 156 | Otay Ranch Senior High School | 602 |
| 158 | Turlock High School | 601 |
| 158 | Tesoro High School | 601 |
| 158 | Highland High School | 601 |
| 161 | Tustin High School | 600 |
| 161 | East Bakersfield High School | 600 |
| 163 | Modesto High School | 599 |
| 163 | Jordan High School | 599 |
| 165 | San Ysidro High School | 598 |
| 165 | Alta Loma High School | 598 |
| 167 | Cesar Chavez High School | 597 |
| 168 | Phineas Banning Senior High School | 594 |
| 169 | Edison High School | 592 |
| 169 | Alternative Education-San Joaquin High School | 592 |
| 171 | North Hollywood Senior High School | 591 |
| 172 | Claremont High School | 590 |
| 173 | Watsonville High School | 589 |
| 173 | Polytechnic High School | 589 |
| 173 | Foothill High School | 589 |
| 173 | Mark Keppel High School | 589 |
| 173 | Joseph A. Gregori High School | 589 |
| 178 | Davis Senior High School | 588 |
| 178 | Hueneme High School | 588 |
| 178 | Palmdale High School | 588 |
| 178 | Orange Vista High School | 588 |
| 182 | John H. Francis Polytechnic High School | 587 |
| 182 | Bullard High School | 587 |
| 182 | Irvington High School | 587 |
| 185 | Menlo-Atherton High School | 586 |
| 185 | Stockdale High School | 586 |
| 187 | Ontario High School | 585 |
| 188 | Taft Charter High School | 584 |
| 189 | Norte Vista High School | 582 |
| 189 | Olympian High School | 582 |
| 191 | Palos Verdes Peninsula High School | 581 |
| 192 | Cupertino High School | 580 |
| 193 | Carlmont High School | 579 |
| 193 | Vista High School | 579 |
| 195 | Van Nuys Senior High School | 578 |
| 195 | Clayton Valley Charter High School | 578 |
| 195 | Hector G. Godinez School | 578 |
| 198 | Granada High School | 576 |
| 199 | Mountain View High School | 575 |
| 199 | Bell Senior High School | 575 |

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