Needs Improvement
#9270 of 9,539 schools in CA
Del Sur Senior Elementary
Elementary School · Westside Union Elementary · Lancaster, CA
A Westside Union Elementary elementary school where students score 16 points below what's typical for similar communities.
9023 West Ave. H, Lancaster, CA 93536
- Math 22% vs CA 37% (2024)
- Reading 31% vs CA 46% (2024)
- 27.1:1 student-teacher ratio
Academics
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
Students at Del Sur Senior Elementary score 26% proficient, which is below what's typical for similar communities (expected: 43%).
2024 CAASPP proficiency
Most recent published year. School vs. CA average.
Trend
↓ DecliningProficiency has fallen 11 points since 2018, to 26% in 2024, across a 16-year record (2009–2024).
Show all 12 years
Multi-year averages used by the rating model: math 32% (multi-year average, 2009-2024) · reading/ELA 41% (multi-year average, 2009-2024)
Based on 36 test records from CA state assessments and EdFacts (NCES).
Equity & diversity
Shown separately, not included in the overall scoreFree/reduced lunch
56.1%
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 Del Sur Senior Elementary 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 3Car-Dependent
- Bike 26Somewhat Bikeable
- City Safety: High2,788/100K
Powered by
FBI Uniform Crime Reporting · 2024 · city context (Lancaster), not school-level safety or attendance eligibility. Source details
Source period: 2024. Freshness not available.
Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)
Median income
$102,927
Median home value
$484,900
Median rent
$1,946/mo
College educated
26.5%
Homeownership
69.3%
Poverty rate
12.4%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 93536; this is area context, not an attendance boundary.
Programs & students
Programs & Offerings
Compare nearby
Nearby same-level schools
4 from a 5-mile search; district fallback available
| School | Score | Grades | Distance | Enrollment | Compare |
|---|---|---|---|---|---|
| Sundown ElementaryEnrollment path unverified | 2.7 | K–6 | 3.8 mi | 889 | Compare → |
| Noah's Ark - Hope Chapel Christian AcademyPrivate · tuition | 6.9private | K–5 | 3.9 mi | 66 | Compare → |
| Anaverde HillsEnrollment path unverified | 3.6 | K–8 | Not available | 576 | Compare → |
| Cottonwood ElementaryEnrollment path unverified | 6.8 | K–6 | Not available | 615 | Compare → |
Distance is proximity only; it is not attendance eligibility.
Enrollment path unverified: Potential public school; its attendance or application path has not been classified.
Private · tuition: Potential private option; tuition and admission requirements have not been verified.
Public and private scores come from different models and are shown side by side, not blended into one ranking.
Westside Union Elementary
- Schools in district
- 12
- Rank in district
- #11 of 12
- District spending per student
- $13,325NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 9.6%Census SAIPE · 2024
Del Sur Senior Elementary is listed in Westside Union Elementary; a district label does not verify attendance for an address.
About Del Sur Senior Elementary
Del Sur Senior Elementary is a public elementary school in Lancaster, CA, part of Westside Union Elementary, serving approximately 758 students in grades Kindergarten-8th with a 27.1:1 student-teacher ratio. It holds a MySchoolScout rating of 3.1 out of 10 and ranks #9,270 of 9,539 schools in CA. State assessment records show 32% math proficiency (multi-year average, 2009-2024) and 41% reading/ELA proficiency (multi-year average, 2009-2024).
Frequently asked questions
Common questions about Del Sur Senior Elementary
What grades does Del Sur Senior Elementary serve?
Del Sur Senior Elementary serves students in grades Kindergarten through 8th.
How many students attend Del Sur Senior Elementary?
Del Sur Senior Elementary has an enrollment of approximately 758 students.
What is the student-teacher ratio at Del Sur Senior Elementary?
The student-teacher ratio at Del Sur Senior Elementary is 27.1:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Del Sur Senior Elementary rank in CA?
Del Sur Senior Elementary ranks #9,270 of 9,539 schools in CA.
What is Del Sur Senior Elementary's MySchoolScout rating?
Del Sur Senior Elementary has a current MySchoolScout rating of 3.1 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 Del Sur Senior Elementary?
Based on loaded state assessment records, Del Sur Senior Elementary has 32% math proficiency (multi-year average, 2009-2024) and 41% reading/ELA proficiency (multi-year average, 2009-2024).
Is Del Sur Senior Elementary a charter school?
No, Del Sur Senior Elementary is not a charter school. It is a traditional public school operated by the local school district.
Is Del Sur Senior Elementary a Title I school?
No, Del Sur Senior Elementary is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Del Sur Senior Elementary?
56.1% of students at Del Sur Senior Elementary 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
- Kindergarten – 8th
- Enrollment
- 758
- Student-Teacher Ratio
- 27.1:1
- Teachers (FTE)
- 28
- Type
- regular
- Setting
- Fringe Rural
- County
- Los Angeles County
- Chronic Absenteeism (SY 2022-23)
- 29.8%
- Phone
- (661) 942-0488
- Area population (ZIP 93536)
- 72,013
- Area average commute
- 32.7 min
- Area median age
- 36.8
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 93536; this does not measure the attendance area.
- Programs (AP/IB, athletics, gifted)
- CRDC via Urban Institute · SY 2021–22 · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: SY 2021–22. A newer release may be available.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2024; directory SY 2023–24
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