Total enrollment
20,465
-1,270 (-6%) vs SY 2020-21
16 schools in William S. Hart Union High
California · 20,465 students · 7 cities
Within William S. Hart Union High, 16 public K-12 schools serve about 20,465 students, an average of 1279 per school.
4-year change in William S. Hart Union High
SY 2020-21 vs SY 2024-25School count
16
0 (0%) vs SY 2020-21
Source: NCES Common Core of Data, enrollment-weighted demographic averages
How William S. Hart Union High ranks
Among districts| Measure | This district | In California | In the US |
|---|---|---|---|
| State test proficiency ranked highest first | 59.1% | #95 of 534 | N/A |
| Enrollment ranked largest first | 20,465 | #55 of 587 | #393 of 9,234 |
| Number of schools ranked most first | 16 | #143 of 587 | N/A |
| Students per teacher ranked fewest first | 23.1:1 | #481 of 587 | #8,870 of 9,044 |
| Free or reduced-price lunch share ranked highest first | 28.0% | #501 of 587 | #6,817 of 8,164 |
| Diversity index ranked most diverse first | 67.3% | #98 of 530 | #711 of 6,853 |
Districts need at least 2 schools and 500 students to be ranked. Test proficiency is ranked within the state only, since each state gives a different test. Each rank links to the full list.
Inside William S. Hart Union High
State test results across the district's 14 scored schools run from Academy of the Canyons at 79.5% proficient to Sierra Vista Junior High at 42.5%, a gap of 36.9 points. That is the 158th widest gap among 458 California districts with four or more scored schools.
Since 2017-18, the 15 district schools that reported both years went from 22,568 to 19,306 students (down 14%) and from 924 to 837 full-time teachers (down 9%), as of 2024-25.
Proficient is the average share of students meeting the state standard across each school's state tests in 2023-24 and 2024-25; schools with fewer than 100 students and schools serving specialized populations are left out. Staffing figures come from the NCES Common Core of Data and count only schools that reported students and teachers in both years.
| Name | City | Level | Grades | Enrollment |
|---|---|---|---|---|
| Saugus High | Saugus | High | 09-12 | 2,317 |
| Valencia High | Valencia | High | 09-12 | 2,286 |
| Golden Valley High | Santa Clarita | High | 09-12 | 1,980 |
| Canyon High | Canyon Country | High | 09-12 | 1,952 |
| William S. Hart High | Newhall | High | 09-12 | 1,941 |
| West Ranch High | Valencia | High | 09-12 | 1,777 |
| Arroyo Seco Junior High | Valencia | Middle | 07-08 | 1,239 |
| Castaic High | Castaic | High | 09-12 | 1,159 |
| Rio Norte Junior High | Santa Clarita | Middle | 07-08 | 1,138 |
| La Mesa Junior High | Santa Clarita | Middle | 07-08 | 1,017 |
| Sierra Vista Junior High | Canyon Country | Middle | 07-08 | 946 |
| Placerita Junior High | Newhall | Middle | 07-08 | 940 |
| Rancho Pico Junior High | Stevenson Ranch | Middle | 07-08 | 842 |
| Academy of the Canyons | Santa Clarita | High | 09-12 | 385 |
| Learning Post Academy (Alternative) | Santa Clarita | High | 07-12 | 322 |
| Bowman (Jereann) High (Continuation) | Santa Clarita | High | 09-12 | 224 |
About William S. Hart Union High
William S. Hart Union High maintains 16 public schools across California, collectively teacheing roughly 20,465 students.
For a sense of the school types, William S. Hart Union High covers 6 middle and 10 high schools.
Average enrollment per school in William S. Hart Union High is about 1,279, higher than the California average of roughly 578.
Looking at the last 4 years. Across the same 4-year window, public-school enrollment decreased 6%: 21,735 students in SY 2020-21 versus 20,465 in SY 2024-25.
Within the allk12 community for this area, the community for William S. Hart Union High discusses sports rivalries, cross-district programs, and shared facilities. Discussions cut across districts, schools, and grade levels.