Average

#1227 of 1,787 private schools in CA

St Mary Elementary School

Elementary School

1158 BONT LN, Walnut Creek, CA 94596

Last updated: July 2026

Private

Enrollment

308

Student-Teacher

18.8:1

Score

5.7

Grades

Kindergarten – 8th

Enrollment

308

Student-Teacher

18.8:1

Score

5.7

Grades

Kindergarten – 8th

Data vintage
2021-22

Data vintage2021-22

How this school compares

California private schools

#1,227 of 1,787

In Walnut Creek

#8 of 9

public schools

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About St Mary Elementary School

St Mary Elementary School is a private elementary school in Walnut Creek, CA. St Mary Elementary School serves approximately 308 students, and covers grades Kindergarten-8th, and has a 18.8:1 student-teacher ratio. St Mary Elementary School has a current MySchoolScout rating of 5.7 out of 10 and ranks #1,227 of 1,787 private schools in CA.

How it compares0.5 pts below CA schools

5.7

This school 5.7 · Average
CA avg 6.2

What Parents Should Know

St Mary Elementary School is private, so it runs independently of the local district and sets its own curriculum. That freedom cuts both ways depending on what you want for your child. If you're considering it, start with the practical questions: tuition, financial aid, and how admissions work.

Compare to Public Schools

Beta

How St Mary Elementary School compares to 13 public schools serving similar grades in Walnut Creek, CA

Student-Teacher Ratio

18.8:1

This School

25.5:1

Public Avg

Avg School Size

308

This School

538

Public Avg

Avg School Scout Rating

5.7

This School

6.9

Public Avg

Student Demographics

White 57.1% vs 0%

Hispanic 24.7% vs 0%

Asian 10.4% vs 0%

Black 1.6% vs 0%

St Mary Elementary School Walnut Creek Public Avg

Nearby Elementary Schools

School	Distance	Enrollment	STR	Rating
St Mary Elementary School (this school)	—	308	18.8:1	5.7
Tice Creek	0.5 mi	437	23:1	8.8
Parkmead Elementary	0.6 mi	444	23.4:1	7.4
Walnut Creek Intermediate	1.1 mi	993	23.6:1	7.0
Buena Vista Elementary	1.2 mi	494	23.5:1	8.1
Murwood Elementary	1.4 mi	413	21.7:1	7.8
Walnut Heights Elementary	1.7 mi	402	23.6:1	7.6
Indian Valley Elementary	1.9 mi	363	22.7:1	6.7
Bancroft Elementary	2.8 mi	686	27.4:1	6.6
Walnut Acres Elementary	3.0 mi	678	32.3:1	6.7
Eagle Peak Montessori	3.3 mi	292	26.5:1	5.2
Foothill Middle	3.3 mi	947	26.3:1	7.2
Contra Costa School of Performing Arts	3.4 mi	361	25.8:1	4.2
Valle Verde Elementary	3.9 mi	485	32.3:1	5.9

Demographics sourced from NCES Private School Survey (PSS) and Common Core of Data (CCD). Comparisons are based on enrollment-weighted averages.

Score Breakdown

Preliminary

What 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.

Classroom Attention

C 2.9 / 10

View breakdown

Student-Teacher Ratio 18.8:1

Instructional Commitment

B+ 7.3 / 10

View breakdown

School Day Length 7 hours

Annual Instructional Hours 1,260

Diversity & Inclusion

B+ 7.0 / 10

View breakdown

Diversity Index 60%

Community Context

Data Unavailable

School Profile

A- 8.1 / 10

View breakdown

Enrollment 308

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

Test score data not yet available for this school.

Student Demographics NCES PSS (SY 2021-22)

White 57.1%

Hispanic 24.7%

Asian 10.4%

Two or More 5.2%

Black 1.6%

Pacific Islander 0.6%

Native American 0.3%

Source: NCES Private School Survey (PSS)

Location

1158 BONT LN, Walnut Creek, CA 94596

Nearby Alternatives

Families considering St Mary Elementary School may also want to explore other elementary schools in the area. Tice Creek (rated 8.8/10, 0.5 miles away), which scores notably higher. Another option is Buena Vista Elementary (rated 8.1/10, 1.2 miles away), which scores notably higher. Additionally, Murwood Elementary (rated 7.8/10, 1.4 miles away), which scores notably higher. For more schools in Walnut Creek, see our Walnut Creek schools guide .

Nearby Schools

20 within 1.9 mi

School	Distance	Enrollment	Rating
St. Mary of the Immaculate Conception Walnut Creek	0.0 mi	300	—
Tice Creek Walnut Creek	0.5 mi	437	8.8
FUSION ACADEMY WALNUT CREEK DOWNTOWN Walnut Creek	0.6 mi	80	7.9
Fusion Academy Walnut Creek Downtown Walnut Creek	0.6 mi	26	—
Parkmead Elementary Walnut Creek	0.6 mi	444	7.4
LINDAMOOD-BELL LEARNING PROCESSES WALNUT CREEK Walnut Creek	0.5 mi	3	—
Building Connections Behavioral Health Walnut Creek	0.6 mi	7	—
Las Lomas High Walnut Creek	0.8 mi	1,568	8.1
Cedar Life Academy Walnut Creek	0.9 mi	320	—
Walnut Creek Christian Academy Walnut Creek	1.0 mi	148	—
WALNUT CREEK CHRISTIAN ACADEMY Walnut Creek	1.1 mi	199	6.2
Buena Vista Elementary Walnut Creek	1.2 mi	494	8.1
Walnut Creek Intermediate Walnut Creek	1.1 mi	993	7.0
Al Judiy Academy Walnut Creek	1.3 mi	52	—
Acalanes Center for Independent Study Walnut Creek	1.4 mi	51	7.5
Meher Schools, The Lafayette	1.1 mi	178	—
MEHER SCHOOLS Lafayette	1.1 mi	185	6.7
Murwood Elementary Walnut Creek	1.4 mi	413	7.8
Contra Costa Christian Schools Walnut Creek	1.9 mi	295	—
CONTRA COSTA CHRISTIAN SCHOOL Walnut Creek	1.9 mi	350	7.3

Neighborhood Census ACS (2019-2023)

Census data for ZIP 94596 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$137,660

Median Home Value

$1,245,000

Median Rent

$2,471/mo

Population

23,592

College Educated

69.5%

Homeownership

44.9%

Avg Commute

32 min

Poverty Rate

6.2%

Median Age

37.5

Similar Schools

Schools in the same state with comparable level, size, and ratings

School	Enrollment	Rating
ALISO VIEJO CHRISTIAN SCHOOL Aliso Viejo, CA	396	5.7
Alta Loma Elementary Los Angeles, CA	367	5.7
Alvarado Elementary Signal Hill, CA	394	5.7
Aragon Avenue Elementary Los Angeles, CA	216	5.7
Bandini Street Elementary San Pedro, CA	241	5.7
Bell Avenue Elementary Sacramento, CA	381	5.7

Frequently Asked Questions

Common questions about St Mary Elementary School

What grades does St Mary Elementary School serve?

St Mary Elementary School serves students in grades Kindergarten through 8th.

How many students attend St Mary Elementary School?

St Mary Elementary School has an enrollment of approximately 308 students.

What is the student-teacher ratio at St Mary Elementary School?

The student-teacher ratio at St Mary Elementary School is 18.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.

How does St Mary Elementary School rank in CA?

St Mary Elementary School ranks #1,227 of 1,787 private schools in CA.

What is St Mary Elementary School's MySchoolScout rating?

St Mary Elementary School has a current MySchoolScout rating of 5.7 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

Is St Mary Elementary School a private school?

Yes, St Mary Elementary 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 Mary Elementary School a religious school?

St Mary Elementary School has a Roman Catholic religious affiliation.

Explore More Schools

All schools in Walnut Creek, CA Schools in CA 20 nearby schools Explore San Francisco Bay Area school quality map

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Neighborhood Context

Walk Score: 82 Very Walkable
Transit Score: 33 Some Transit
Bike Score: 65 Bikeable

Quick Facts NCES PSS (SY 2021-22)

Grades: Kindergarten – 8th
Enrollment: 308
Gender Split: 49% M / 51% F
Student-Teacher Ratio: 18.8:1
Teachers (FTE): 16
Type: private
Coed Status: coed
Affiliation: Roman Catholic
School Day: 7 hours
Days Per Year: 180 days
Setting: Small City
County: Contra Costa County
Phone: (925) 935-5054

Resources & Links

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Data sources

NCES PSSSY 2021-22 Census ACS2019-2023 MySchoolScout Rankings2024 Full details →

St Mary Elementary School

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