Schools
19
listed public schools. We score one elementary, seven middle and 10 high.
School district · Los Angeles County
William S. Hart Union High schools
The William S. Hart Union High district has one public elementary school we score. Santa Clarita Valley International has a Scope Score of 70. Its 7 middle schools have Scope Scores from 75 to 90. Its 10 high schools have Scope Scores from 72 to 95.
75 is the typical California school. 100 is the best result in the state.
Students
21,760
in the October 2024–25 enrollment count.
Spending
$17,176
per student in 2024–25. The typical California district spent $20,491.
The path
What is the path through the district?
William S. Hart Union High has one elementary school, seven middle schools and 10 high schools that we score.
Elementary · grades k–12
Santa Clarita Valley International
Scope Score 70
Needs Support · 19th percentile
Middle
7schools
Scope Scores from 75 to 90.
See the middle schools ↓High
10schools
Scope Scores from 72 to 95.
See the high schools ↓Each score compares a school with California schools at its own level. The levels are not one ranking. Confirm the school for your address, grade and program with the district.
Elementary schools
Where does the elementary school we score in the William S. Hart Union High district stand?
Santa Clarita Valley International has a Scope Score of 70. That is higher than 19 in 100 California elementary schools we score. It is the only public elementary school we score in the William S. Hart Union High district.
AdvancedProficientBelow the standardEnglish and math tests combined
Rank 1
Santa Clarita Valley InternationalCharter
Castaic · Grades K–12 · 548 students · Check how it admits students.
141472% below the standard
Scope Score 70Needs Support · 19th percentile
Each score compares a school with the 5,726 California elementary schools we score. Source: California Department of Education, state tests (CAASPP), spring 2026.
Middle schools
Which middle schools in the William S. Hart Union High district score highest?
Rancho Pico Junior High and Rio Norte Junior High are highest. Each has a Scope Score of 90. That is higher than 95 in 100 California middle schools we score.
AdvancedProficientBelow the standardEnglish and math tests combined
Rank 1
Rancho Pico Junior High
Stevenson Ranch · Grades 7–8 · 842 students
433126% below the standard
Scope Score 90Strong · 95th percentile
Rank 2
Rio Norte Junior High
Santa Clarita · Grades 7–8 · 1,138 students
432928% below the standard
Scope Score 90Strong · 95th percentile
Rank 3
Arroyo Seco Junior High
Valencia · Grades 7–8 · 1,239 students
303238% below the standard
Scope Score 84Strong · 85th percentile
Rank 4
Placerita Junior High
Newhall · Grades 7–8 · 940 students
272845% below the standard
Scope Score 82Strong · 81st percentile
Rank 5
La Mesa Junior High
Santa Clarita · Grades 7–8 · 1,017 students
233146% below the standard
Scope Score 80Solid · 74th percentile
Rank 6
Sierra Vista Junior High
Canyon Country · Grades 7–8 · 946 students
172855% below the standard
Scope Score 77Solid · 62nd percentile
Rank 7
Santa Clarita Valley InternationalCharter
Castaic · Grades K–12 · 548 students · Check how it admits students.
132463% below the standard
Scope Score 75Solid · 51st percentile
The average middle school in the William S. Hart Union High district had 11 in 100 students chronically absent in 2025–26.
Each score compares a school with the 2,529 California middle schools we score. Source: California Department of Education, state tests (CAASPP), spring 2026. The average California middle school we score had 18 in 100. Chronically absent means a student missed 10% or more of school days. Each figure is an average of school rates. Each school counts once.
High schools
Which high schools in the William S. Hart Union High district score highest?
Academy of the Canyons is highest, with a Scope Score of 95. That is higher than 98 in 100 California high schools we score.
AdvancedProficientBelow the standardEnglish and math tests combined
Rank 1
Academy of the Canyons
Santa Clarita · Grades 9–12 · 385 students
592813% below the standard
Scope Score 95Strong · 98th percentile
Rank 2
West Ranch High
Valencia · Grades 9–12 · 1,777 students
502327% below the standard
Scope Score 91Strong · 95th percentile
Rank 3
Valencia High
Valencia · Grades 9–12 · 2,286 students
412831% below the standard
Scope Score 85Strong · 85th percentile
Rank 4
Saugus High
Saugus · Grades 9–12 · 2,317 students
333235% below the standard
Scope Score 84Strong · 83rd percentile
Rank 5
Canyon High
Canyon Country · Grades 9–12 · 1,952 students
362638% below the standard
Scope Score 83Strong · 80th percentile
Rank 6
Castaic High
Castaic · Grades 9–12 · 1,159 students
312544% below the standard
Scope Score 81Solid · 73rd percentile
Rank 7
William S. Hart High
Newhall · Grades 9–12 · 1,941 students
262648% below the standard
Scope Score 80Solid · 70th percentile
Rank 8
Santa Clarita Valley InternationalCharter
Castaic · Grades K–12 · 548 students · Check how it admits students.
262054% below the standard
Scope Score 76Solid · 52nd percentile
Rank 9
Golden Valley High
Santa Clarita · Grades 9–12 · 1,980 students
202753% below the standard
Scope Score 75Developing · 49th percentile
Rank 10
Learning Post Academy (Alternative)
Santa Clarita · Grades 7–12 · 322 students · Check how it admits students.
122662% below the standard
Scope Score 72Developing · 33rd percentile
The average high school in the William S. Hart Union High district had 14 in 100 students chronically absent in 2025–26.
3 high schools not ranked statewide
Alternative schools and continuation schools enroll students differently from a regular school, so each is compared only with schools of its kind.
- Opportunities for Learning - William S. HartAlternative school
- Bowman (Jereann) High (Continuation)Continuation high school
- Mission View PublicAlternative school
Each score compares a school with the 1,498 California high schools we score. Source: California Department of Education, state tests (CAASPP), spring 2025. The state called the top two levels Exceeded and Met in spring 2025. The average California high school we score had 22 in 100.
Against California
How does the district compare with California?
11 in 100 students at the average middle school here were chronically absent. The California figure is 18 in 100.
Students who miss a lot of school
Average middle school, students in 100
William S. Hart Union High11 in 100
California18 in 100
Students from low-income families
Qualify for free or reduced-price meals
William S. Hart Union High30%
California63%
Spending per student
Day-to-day spending, 2024–25
William S. Hart Union High$17,176
Typical district$20,491
English learners who moved up a level
On the state’s English test (ELPAC)
William S. Hart Union High54%
California47%
Absence: averages of school rates, each middle school counted once, 2025–26. Meals: 6,446 of 21,732 students, 2024–25, summed from the state’s meal counts for every school listed under the district, charters included. Spending: day-to-day spending per student in average daily attendance, 2024–25. The typical district is the middle one when California districts are put in order. English learners: From spring 2025 to spring 2026, 54% of the district’s English learners moved up at least one level on the state’s English test (ELPAC), or stayed at the top (380 of 705 students). California: 47%. It counts students moving up the test’s levels, so a student can count here before becoming fluent. Source: California Department of Education, English learner progress files.
The district
Where does William S. Hart Union High’s money go?
About 58 cents of every William S. Hart Union High dollar went to classroom instruction.
$17,176
spent per student in the 2024–25 school year. The typical California district spent $20,491.
Every dollar, by what it paid for
58¢12¢11¢10¢8¢
- Instruction58%
- Instruction support12%
- Student services11%
- Buildings & maintenance10%
- Administration8%
- Other1%
The district’s 2026–27 spending plan puts $151.7 million into 31 funded actions in 5 goals. That is 42% of its $364.8 million general fund budget. These are planned amounts. The district reports what it spent in a later plan.
Spending is day-to-day spending per student in average daily attendance, from the district’s annual financial report (SACS) to the California Department of Education, 2024–25. It covers the whole district, including central administration. Shares are rounded so they add up to 100. Planned amounts are from the yearly spending plan (LCAP) as posted to the California School Dashboard.
State records
Who attends, and is the state giving extra help?
21,760 students were enrolled in the October 2024–25 count. The state is giving William S.
Who goes to the district’s schools
- Hispanic or Latino 45%
- White 32%
- Asian 8%
- Filipino 5%
- Two or more races 5%
- Other or not reported 5%
Is the state giving the district extra help?
The state is giving William S. Hart Union High extra help in 2026, the second year after it qualified on the 2025 Dashboard.
State results from the 2026 California School Dashboard. Source: District help (CDE).Common questions
What do parents ask about this district?
Are the public schools in the William S. Hart Union High district good?
The William S. Hart Union High district has one public elementary school we score. Santa Clarita Valley International has a Scope Score of 70. It is Needs Support, at the 19th percentile. William S. Hart Union High’s 7 public middle schools have Scope Scores from 75 to 90. Of those, 4 are Strong and 3 are Solid. William S. Hart Union High’s 10 public high schools have Scope Scores from 72 to 95. Of those, 5 are Strong, 3 are Solid and 2 are Developing. 75 is the typical California school. 100 is the best result in the state. How we score schools.
Which public schools in the William S. Hart Union High district rank highest?
Santa Clarita Valley International is the only elementary school we score here. It has a Scope Score of 70. It is Needs Support, at the 19th percentile. Rancho Pico Junior High and Rio Norte Junior High are the highest middle schools. Each has a Scope Score of 90. Each is Strong, at the 95th percentile. Academy of the Canyons is the highest high school, with a Scope Score of 95. It is Strong, at the 98th percentile. Each score compares a school with the California schools at the same level we score. A rank doesn’t decide fit or whether a child can enroll.
How does chronic absence in the William S. Hart Union High district compare with California?
The average middle school in the William S. Hart Union High district had 11 in 100 students chronically absent in 2025–26. The average California middle school we score had 18 in 100. Chronically absent means a student missed 10% or more of school days. Each figure is an average of school rates. Each school counts once. The average high school in the William S. Hart Union High district had 14 in 100 students chronically absent in 2025–26. The average California high school we score had 22 in 100.
How much does the William S. Hart Union High district spend per student?
The William S. Hart Union High district spent $17,176 per student in the 2024–25 school year. The typical California district spent $20,491. About 58 cents of every William S. Hart Union High dollar went to classroom instruction. Day-to-day spending per student in average daily attendance, from its annual financial report to the California Department of Education. The district’s spending, by function.
What is in the William S. Hart Union High district’s 2026–27 spending plan?
The district’s 2026–27 spending plan puts $151.7 million into 31 funded actions in 5 goals. That is 42% of its $364.8 million general fund budget. Its largest goal holds $128.7 million, 85% of the action budgets. The 2026–27 plan, goal by goal.
Does living in the William S. Hart Union High district decide which school my child attends?
Not by itself. Attendance boundaries, programs, transfers and space all matter. Confirm the school for your address, grade and program with the district.
Where do these results come from?
The test results are from California’s state tests (CAASPP). They are from spring 2026 for elementary and middle schools. The results are from spring 2025 for high schools. Chronic-absence rates are for 2025–26. The California Department of Education publishes both. Percentiles, bands and Scope Scores are SchoolScope’s calculations. How we score schools.
Next
Which places nearby can you look at next?
Schools in Santa Clarita
Every public school with a Santa Clarita address.
Compare schoolsSee the same numbers for each school.
Open the mapSee these schools on the map.
Cities in the district
Sources and methodology
This page lists the public schools governed and funded by the William S. Hart Union High district, with the district’s spending and state records.
Data source: California Department of Education · CAASPP 2025–26 elementary and middle school; 2024–25 high school
Percentiles, bands and Scope Scores are SchoolScope’s own calculations from these state files.
State tests are the California Assessment of Student Performance and Progress (CAASPP), springs 2025 and 2026.
Download these schools (CSV) Free to use under CC BY 4.0 with attribution.