Average
#4791 of 9,539 schools in CA
Sierra Vista Junior High
Middle School · William S. Hart Union High · Canyon Country, CA
A William S. Hart Union High middle school where students score 13 points below what's typical for similar communities.
19425 West Stillmore St., Canyon Country, CA 91351
- Math 32% vs CA 34% (2024)
- Reading 50% vs CA 47% (2024)
- 19.5:1 student-teacher ratio
Academics
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
Students at Sierra Vista Junior High score 41% proficient, which is below what's typical for similar communities (expected: 54%).
2024 CAASPP proficiency
Most recent published year. School vs. CA average.
Trend
↓ DecliningProficiency has fallen 7 points since 2018, to 41% in 2024, across a 16-year record (2009–2024).
Show all 12 years
Multi-year averages used by the rating model: math 48% (multi-year average, 2009-2024) · reading/ELA 55% (multi-year average, 2009-2024)
Based on 28 test records from CA state assessments and EdFacts (NCES).
Equity & diversity
Shown separately, not included in the overall scoreFree/reduced lunch
35.5%
Students qualifying for federal meal assistance
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateThe neighborhood
Where Sierra Vista Junior High sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the Los Angeles map →
Getting around & local context
- Walk 77Very Walkable
- Bike 75Very Bikeable
- County Safety: Low245/100K
Powered by
FBI Uniform Crime Reporting · 2024 · county context, not school-level safety or attendance eligibility. Source details
Source period: 2024. A newer release may be available.
Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)
Median income
$112,888
Median home value
$589,400
Median rent
$2,272/mo
College educated
24.8%
Homeownership
74.3%
Poverty rate
9%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 91351; this is area context, not an attendance boundary.
Compare nearby
Nearby same-level schools
4 from a 5-mile search; district fallback available
| School | Score | Grades | Distance | Enrollment | Compare |
|---|---|---|---|---|---|
| Santa Clarita Christian SchoolPrivate · tuition | 4.8private | K–12 | 0.7 mi | 560 | Compare → |
| La Mesa Junior HighEnrollment path unverified | 5.4 | 7–8 | 0.9 mi | 1,023 | Compare → |
| Arroyo Seco Junior HighEnrollment path unverified | 7.6 | 7–8 | 3.9 mi | 1,240 | Compare → |
| Placerita Junior HighEnrollment path unverified | 7.3 | 7–8 | 4.4 mi | 920 | Compare → |
Distance is proximity only; it is not attendance eligibility.
Private · tuition: Potential private option; tuition and admission requirements have not been verified.
Enrollment path unverified: Potential public school; its attendance or application path has not been classified.
Public and private scores come from different models and are shown side by side, not blended into one ranking.
William S. Hart Union High
- Schools in district
- 16
- Rank in district
- #11 of 16
- District spending per student
- $15,278NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 7.2%Census SAIPE · 2024
Sierra Vista Junior High is listed in William S. Hart Union High; a district label does not verify attendance for an address.
About Sierra Vista Junior High
Sierra Vista Junior High is a public middle school in Canyon Country, CA, part of William S. Hart Union High, serving approximately 974 students in grades 7th-8th with a 19.5:1 student-teacher ratio. It holds a MySchoolScout rating of 6.4 out of 10 and ranks #4,791 of 9,539 schools in CA.
State assessment records show 48% math proficiency (multi-year average, 2009-2024) and 55% reading/ELA proficiency (multi-year average, 2009-2024).
Frequently asked questions
Common questions about Sierra Vista Junior High
What grades does Sierra Vista Junior High serve?
Sierra Vista Junior High serves students in grades 7th through 8th.
How many students attend Sierra Vista Junior High?
Sierra Vista Junior High has an enrollment of approximately 974 students.
What is the student-teacher ratio at Sierra Vista Junior High?
The student-teacher ratio at Sierra Vista Junior High is 19.5:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Sierra Vista Junior High rank in CA?
Sierra Vista Junior High ranks #4,791 of 9,539 schools in CA.
What is Sierra Vista Junior High's MySchoolScout rating?
Sierra Vista Junior High has a current MySchoolScout rating of 6.4 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Sierra Vista Junior High?
Based on loaded state assessment records, Sierra Vista Junior High has 48% math proficiency (multi-year average, 2009-2024) and 55% reading/ELA proficiency (multi-year average, 2009-2024).
Is Sierra Vista Junior High a charter school?
No, Sierra Vista Junior High is not a charter school. It is a traditional public school operated by the local school district.
Is Sierra Vista Junior High a Title I school?
No, Sierra Vista Junior High is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Sierra Vista Junior High?
35.5% of students at Sierra Vista Junior High qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
School factsNCES Common Core of Data (CCD) (SY 2023–24)
- Grades
- 7th – 8th
- Enrollment
- 974
- Student-Teacher Ratio
- 19.5:1
- Teachers (FTE)
- 50
- Type
- regular
- Setting
- Large Suburb
- County
- Los Angeles County
- Chronic Absenteeism (SY 2022-23)
- 22.6%
- Phone
- (661) 252-3113
- Area population (ZIP 91351)
- 33,553
- Area average commute
- 39.4 min
- Area median age
- 38
Official sources & links
About this school's data
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.
- School directory (enrollment, grades, staff, contact)
- NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
- Source period: SY 2023–24. A newer release may be available.
- MySchoolScout rating and rank
- MySchoolScout ranking model · Low confidence
- Vintage not available. Do not use this measure alone.
- Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
- Math proficiency
- State department of education · 2024 CAASPP · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2024 CAASPP. A newer release may be available.
- Derived from source records rather than read directly from one field.
- Reading/ELA proficiency
- State department of education · 2024 CAASPP · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2024 CAASPP. A newer release may be available.
- Derived from source records rather than read directly from one field.
- Student progress (growth)
- NCES EdFacts · Mixed source periods · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
- Neighborhood (income, housing, education)
- U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
- Older source: ACS 2019–2023 5-year estimates. Use as historical context.
- Reported for the ZCTA for ZIP 91351; this does not measure the attendance area.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2024; directory SY 2023–24
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