Needs Improvement
#8940 of 9,539 schools in CA
Mariano Castro Elementary
Elementary School · Mountain View Whisman · Mountain View, CA
A Mountain View Whisman elementary school where students score 15 points below what's typical for similar communities.
500 Toft St., Mountain View, CA 94040
- Math 14% vs CA 39% (2024)
- Reading 21% vs CA 45% (2024)
- 18.4:1 student-teacher ratio
Academics
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
Students at Mariano Castro Elementary score 17% proficient, which is below what's typical for similar communities (expected: 33%).
2024 CAASPP proficiency
Most recent published year. School vs. CA average.
Trend
↓ DecliningProficiency has fallen 22 points since 2018, to 17% in 2024, across a 16-year record (2009–2024).
Show all 12 years
Multi-year averages used by the rating model: math 38% (multi-year average, 2009-2024) · reading/ELA 40% (multi-year average, 2009-2024)
Based on 30 test records from CA state assessments and EdFacts (NCES).
Equity & diversity
Shown separately, not included in the overall scoreFree/reduced lunch
74.3%
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 Mariano Castro 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 San Jose map →
Getting around & local context
- Walk 75Very Walkable
- Transit 42Some Transit
- Bike 94Biker’s Paradise
- City Safety: High3,103/100K
Powered by
FBI Uniform Crime Reporting · 2024 · city context (Mountain View), 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
$184,494
Median home value
$2,000,001
Median rent
$3,017/mo
College educated
77.9%
Homeownership
36.2%
Poverty rate
5.1%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 94040; 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 |
|---|---|---|---|---|---|
| Gabriela Mistral ElementaryEnrollment path unverified | 6.8 | K–5 | 0.1 mi | 380 | Compare → |
| St Paul Lutheran Child Development CenterPrivate · tuition | Not rated | PK–K | 0.4 mi | 11 | Compare → |
| Khan Lab SchoolPrivate · tuition | 6.6private | K–6 | 0.5 mi | 40 | Compare → |
| Mountain View-los Altos Montessori Childrens CtrPrivate · tuition | Not rated | PK–K | 0.6 mi | 5 | 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.
Mountain View Whisman
- Schools in district
- 12
- Rank in district
- #11 of 11
- District spending per student
- $22,536NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 5.3%Census SAIPE · 2024
Mariano Castro Elementary is listed in Mountain View Whisman; a district label does not verify attendance for an address.
About Mariano Castro Elementary
Mariano Castro Elementary is a public elementary school in Mountain View, CA, part of Mountain View Whisman, serving approximately 257 students in grades Kindergarten-5th with a 18.4:1 student-teacher ratio. It holds a MySchoolScout rating of 3.6 out of 10 and ranks #8,940 of 9,539 schools in CA. State assessment records show 38% math proficiency (multi-year average, 2009-2024) and 40% reading/ELA proficiency (multi-year average, 2009-2024).
Frequently asked questions
Common questions about Mariano Castro Elementary
What grades does Mariano Castro Elementary serve?
Mariano Castro Elementary serves students in grades Kindergarten through 5th.
How many students attend Mariano Castro Elementary?
Mariano Castro Elementary has an enrollment of approximately 257 students.
What is the student-teacher ratio at Mariano Castro Elementary?
The student-teacher ratio at Mariano Castro Elementary is 18.4:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Mariano Castro Elementary rank in CA?
Mariano Castro Elementary ranks #8,940 of 9,539 schools in CA.
What is Mariano Castro Elementary's MySchoolScout rating?
Mariano Castro Elementary has a current MySchoolScout rating of 3.6 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 Mariano Castro Elementary?
Based on loaded state assessment records, Mariano Castro Elementary has 38% math proficiency (multi-year average, 2009-2024) and 40% reading/ELA proficiency (multi-year average, 2009-2024).
Is Mariano Castro Elementary a charter school?
No, Mariano Castro Elementary is not a charter school. It is a traditional public school operated by the local school district.
Is Mariano Castro Elementary a Title I school?
No, Mariano Castro Elementary is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Mariano Castro Elementary?
74.3% of students at Mariano Castro 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 – 5th
- Enrollment
- 257
- Student-Teacher Ratio
- 18.4:1
- Teachers (FTE)
- 14
- Type
- regular
- Setting
- Small City
- County
- Santa Clara County
- Chronic Absenteeism (SY 2022-23)
- 31.9%
- Phone
- (650) 526-3590
- Area population (ZIP 94040)
- 35,581
- Area average commute
- 24.5 min
- Area median age
- 34.9
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 94040; this does not measure the attendance area.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2024; directory SY 2023–24
Related reading
- Best Elementary Schools in America: 2026 Rankingsbest schools
- Best Public Schools in California 2026: Top-Ranked Elementary, Middle & High Schoolsbest schools
- Best School Districts to Move To in 2026: A Data-Driven Guidebest schools
- Best Schools in Los Angeles, CA — 2026 Rankingsbest schools
- Best Schools in San Diego, CA — 2026 Rankingsbest schools
Get school insights in your inbox
New rankings, best-schools lists, and parent guides — delivered free. No spam, unsubscribe anytime.
We respect your privacy. Unsubscribe at any time.