Below Average

#1562 of 1,787 private schools in CA

St Catherine of Siena School

Elementary School

335 N SYCAMORE AVE, Rialto, CA 92376

Last updated: July 2026

Private

Enrollment

156

Student-Teacher

17.3:1

Score

4.9

Grades

Pre-K – 8th

Enrollment

156

Student-Teacher

17.3:1

Score

4.9

Grades

Pre-K – 8th

Data vintage
2021-22

Data vintage2021-22

How this school compares

California private schools

#1,562 of 1,787

In Rialto

#2 of 2

public schools

School shortlistprofile + nearby

Shortlisting around St Catherine of Siena School?

Use this profile as one decision point, then compare nearby options, source confidence, and commute fit before picking a neighborhood around it.

Read rating Nearby schools

Shortlist starter

Start with these real page-level signals, then use the full table and map below.

Elementary School in Rialto · grades Pre-K – 8th. Start here, then compare fit against nearby and district options.

0.5 mi away. Use as a geographic alternative in the same move search.

0.6 mi away. Use as a geographic alternative in the same move search.

About St Catherine of Siena School

St Catherine of Siena School is a private elementary school in Rialto, CA. St Catherine of Siena School serves approximately 156 students, and covers grades Pre-K-8th, and has a 17.3:1 student-teacher ratio. St Catherine of Siena School has a current MySchoolScout rating of 4.9 out of 10 and ranks #1,562 of 1,787 private schools in CA.

How it compares1.3 pts below CA schools

4.9

This school 4.9 · Below Average
CA avg 6.2

What Parents Should Know

At 156 students, St Catherine of Siena School is on the smaller side. That usually buys more individual attention and teachers who know every kid by name, with the trade-off of fewer electives and extracurriculars than a larger school can staff. Ask what activities it actually offers.

St Catherine of Siena 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 Catherine of Siena School compares to 22 public schools serving similar grades in Rialto, CA

Student-Teacher Ratio

17.3:1

This School

23.3:1

Public Avg

Avg School Size

156

This School

615

Public Avg

Avg School Scout Rating

4.9

This School

5.2

Public Avg

Student Demographics

Hispanic 89.7% vs 0%

Black 4.5% vs 0%

Asian 3.8% vs 0%

White 1.9% vs 0%

St Catherine of Siena School Rialto Public Avg

Nearby Elementary Schools

School	Distance	Enrollment	STR	Rating
St Catherine of Siena School (this school)	—	156	17.3:1	4.9
Merle S. Casey Elementary	0.5 mi	570	22.8:1	4.2
Lida M. Henry Elementary	0.6 mi	403	23.7:1	4.5
Levi Bemis Elementary	0.8 mi	555	23.1:1	4.7
J. Calvin Boyd Elementary	0.9 mi	575	24:1	4.2
George H. Dunn Elementary	1.0 mi	610	21.8:1	4.9
Sam V. Curtis Elementary	1.1 mi	671	23.1:1	6.9
J.P. Kelley Elementary	1.2 mi	666	24.7:1	4.6
Vista Norte Public Charter	1.2 mi	631	27.4:1	4.1
Winn A. Myers Elementary	1.3 mi	463	23.1:1	5.6
Warren F. Frisbie Middle	1.4 mi	936	23.4:1	4.1
Zupanic Virtual Academy	1.5 mi	214	14.3:1	7.9
A. H. Morgan Elementary	1.5 mi	466	23.3:1	5.3
Charlotte N. Werner Elementary	1.5 mi	680	21.9:1	3.5
Helen L. Dollahan Elementary	1.6 mi	623	23.1:1	5.0
Rialto Middle	1.7 mi	1,085	23.6:1	5.7
Samuel W. Simpson Elementary	1.8 mi	635	23.5:1	7.1
Lena M. Preston Elementary	1.9 mi	506	24.1:1	3.7
Elizabeth T. Hughbanks Elementary	2.6 mi	434	24.1:1	4.2
Ben F. Kolb Middle	2.8 mi	898	24.3:1	6.8
W.J.C. Trapp Elementary	3.3 mi	543	25.9:1	7.3

Showing 20 of 22 schools. View all schools in Rialto

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+ 3.5 / 10

View breakdown

Student-Teacher Ratio 17.3:1

Instructional Commitment

B+ 6.7 / 10

View breakdown

School Day Length 7 hours

Annual Instructional Hours 1,246

Diversity & Inclusion

C 3.2 / 10

View breakdown

Diversity Index 19%

Community Context

Data Unavailable

School Profile

A- 8.1 / 10

View breakdown

Enrollment 156

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)

Hispanic 89.7%

Black 4.5%

Asian 3.8%

White 1.9%

Source: NCES Private School Survey (PSS)

Location

335 N SYCAMORE AVE, Rialto, CA 92376

Nearby Alternatives

Families considering St Catherine of Siena School may also want to explore other elementary schools in the area. Sam V. Curtis Elementary (rated 6.9/10, 1.1 miles away), which scores notably higher. Another option is Georgia F. Morris Elementary (rated 5.7/10, 1.5 miles away, in nearby Colton), which scores slightly higher. Additionally, Winn A. Myers Elementary (rated 5.6/10, 1.3 miles away), which scores slightly higher. For more schools in Rialto, see our Rialto schools guide .

Nearby Schools

20 within 1.9 mi

School	Distance	Enrollment	Rating
Merle S. Casey Elementary Rialto	0.5 mi	570	4.2
Lida M. Henry Elementary Rialto	0.6 mi	403	4.5
J. Calvin Boyd Elementary Rialto	0.9 mi	575	4.2
Levi Bemis Elementary Rialto	0.8 mi	555	4.7
Vista Norte Public Charter Rialto	1.2 mi	631	4.1
George H. Dunn Elementary Rialto	1.0 mi	610	4.9
Sam V. Curtis Elementary Rialto	1.1 mi	671	6.9
Rialto High Rialto	1.2 mi	2,747	6.4
J.P. Kelley Elementary Rialto	1.2 mi	666	4.6
Winn A. Myers Elementary Rialto	1.3 mi	463	5.6
Warren F. Frisbie Middle Rialto	1.4 mi	936	4.1
Zupanic Virtual Academy Rialto	1.5 mi	214	7.9
Dr. John H. Milor High Continuation Rialto	1.5 mi	252	5.4
A. H. Morgan Elementary Rialto	1.5 mi	466	5.3
Eisenhower High Rialto	1.5 mi	2,152	7.1
Georgia F. Morris Elementary Colton	1.5 mi	609	5.7
William G. Jehue Middle Colton	1.5 mi	1,460	5.9
Charlotte N. Werner Elementary Rialto	1.5 mi	680	3.5
Dr. Ernest Garcia Elementary Colton	1.8 mi	622	4.6
Lena M. Preston Elementary Rialto	1.9 mi	506	3.7

Neighborhood Census ACS (2019-2023)

Census data for ZIP 92376 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$76,914

Median Home Value

$433,100

Median Rent

$1,613/mo

Population

84,161

College Educated

10.4%

Homeownership

60%

Avg Commute

32.4 min

Poverty Rate

14.5%

Median Age

31.2

Similar Schools

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

School	Enrollment	Rating
Browns Elementary Rio Oso, CA	132	4.9
Chester Elementary Chester, CA	155	4.9
GRANITE BAY MONTESSORI Roseville, CA	96	4.9
Inyokern Elementary Inyokern, CA	153	4.9
Landers Elementary Twentynine Palms, CA	126	4.9
Mayberry Street Elementary Los Angeles, CA	142	4.9

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 156 students.

What is the student-teacher ratio at St Catherine of Siena School?

The student-teacher ratio at St Catherine of Siena School is 17.3:1. 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 #1,562 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 4.9 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.

Explore More Schools

All schools in Rialto, CA Schools in CA 20 nearby schools

11 schools nearby View map →

Neighborhood Context

Walk Score: 72 Very Walkable
Transit Score: 40 Some Transit
Bike Score: 51 Bikeable

Quick Facts NCES PSS (SY 2021-22)

Grades: Pre-K – 8th
Enrollment: 156
Gender Split: 44% M / 56% F
Student-Teacher Ratio: 17.3:1
Teachers (FTE): 9
Type: private
Coed Status: coed
Affiliation: Roman Catholic
School Day: 7 hours
Days Per Year: 178 days
Setting: Large Suburb
County: San Bernardino County
Phone: (909) 875-7821

Resources & Links

Search for School Website ↗ Google Maps & Reviews ↗ GreatSchools Profile ↗ Niche Reviews ↗ Official NCES Data ↗

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 rate

Data sources

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

St Catherine of Siena School

How this school compares

Shortlisting around St Catherine of Siena School?