Very Good
#228 of 1,787 private schools in CA
Top 13% of private schools
St Catherine of Siena School
Elementary School · Martinez, CA
A private elementary school in Martinez, CA serving grades Pre-K – 8th.
604 MELLUS ST, Martinez, CA 94553
- 10.8:1 student-teacher ratio
Academics
PreliminaryWhat this rating measures
This rating reflects classroom size, instructional time, student diversity, community resources, and school characteristics. Private schools are ranked against other private schools in CA.
Data not available
View data sources
Score basis: Private school model
Data coverage: 80% of scoring components had data
Components scored: 4 of 5
Ranking pool: Private schools in CA
Test scores
Most recent published year. School vs. CA average.
Test score data not yet available for this school.
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 St Catherine of Siena School 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 Francisco Bay Area map →
Getting around & local context
- Walk 90Walker's Paradise
- Bike 79Very Bikeable
- City Safety: High1,539/100K
Powered by
FBI Uniform Crime Reporting · 2024 · city context (Martinez), 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
$121,023
Median home value
$781,400
Median rent
$2,247/mo
College educated
41.9%
Homeownership
71.8%
Poverty rate
7.6%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 94553; this is area context, not an attendance boundary.
Programs & students
Student demographicsNCES Private School Universe Survey (PSS) (SY 2021–22)
Source: NCES Private School Universe Survey (PSS)
Compare nearby
Nearby same-level schools
4 from a 5-mile search
| School | Score | Grades | Distance | Enrollment | Compare |
|---|---|---|---|---|---|
| St. Catherine of SienaPrivate · tuition | Not rated | K–8 | 0.0 mi | 133 | Compare → |
| Briones (alternative)Enrollment path unverified | 4.9 | K–12 | 0.2 mi | 44 | Compare → |
| Building Connections Academy MartinezPrivate · tuition | Not rated | K–8 | 0.2 mi | 6 | Compare → |
| John Muir ElementaryEnrollment path unverified | 6.9 | K–5 | 1.3 mi | 415 | 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.
St Catherine of Siena School is listed in Martinez, CA; verify the current enrollment path directly.
About St Catherine of Siena School
St Catherine of Siena School is a private elementary school in Martinez, CA, serving approximately 119 students in grades Pre-K-8th with a 10.8:1 student-teacher ratio. It holds a MySchoolScout rating of 7.5 out of 10 and ranks #228 of 1,787 private schools in CA.
Frequently asked questions
Common questions about St Catherine of Siena School
What grades does St Catherine of Siena School serve?
St Catherine of Siena School serves students in grades Pre-K through 8th.
How many students attend St Catherine of Siena School?
St Catherine of Siena School has an enrollment of approximately 119 students.
What is the student-teacher ratio at St Catherine of Siena School?
The student-teacher ratio at St Catherine of Siena School is 10.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.
How does St Catherine of Siena School rank in CA?
St Catherine of Siena School ranks #228 of 1,787 private schools in CA.
What is St Catherine of Siena School's MySchoolScout rating?
St Catherine of Siena School has a current MySchoolScout rating of 7.5 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
Is St Catherine of Siena School a private school?
Yes, St Catherine of Siena School is a private coeducational school with a Roman Catholic affiliation. Private schools are not required to participate in state standardized testing, so academic performance data may be limited compared to public schools.
Is St Catherine of Siena School a religious school?
St Catherine of Siena School has a Roman Catholic religious affiliation.
School factsNCES Private School Universe Survey (PSS) (SY 2021–22)
- Grades
- Pre-K – 8th
- Enrollment
- 119
- Gender Split
- 58% M / 42% F
- Student-Teacher Ratio
- 10.8:1
- Teachers (FTE)
- 11
- Type
- private
- Coed Status
- coed
- Affiliation
- Roman Catholic
- School Day
- 7 hours
- Days Per Year
- 180 days
- Setting
- Large Suburb
- County
- Contra Costa County
- Phone
- (925) 228-4140
- Area population (ZIP 94553)
- 48,600
- Area average commute
- 30.5 min
- Area median age
- 42.3
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 Private School Universe Survey (PSS) · SY 2021–22 · Low confidence
- Vintage not available. Do not use this measure alone.
- MySchoolScout rating and rank
- MySchoolScout ranking model · 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 a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource 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 94553; this does not measure the attendance area.
Evidence periods: Rating mixed/unknown input periods; assessments vintage unavailable; directory SY 2021–22
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.