Average

#1233 of 1,787 private schools in CA

St Thomas the Apostle School

Elementary School

9136 MAGNOLIA AVE, Riverside, CA 92503

Last updated: July 2026

Private

Enrollment

102

Student-Teacher

12.9:1

Score

5.7

Grades

Pre-K – 8th

Enrollment

102

Student-Teacher

12.9:1

Score

5.7

Grades

Pre-K – 8th

Data vintage
2021-22

Data vintage2021-22

How this school compares

California private schools

#1,233 of 1,787

In Riverside

#9 of 14

public schools

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About St Thomas the Apostle School

St Thomas the Apostle School is a private elementary school in Riverside, CA. St Thomas the Apostle School serves approximately 102 students, and covers grades Pre-K-8th, and has a 12.9:1 student-teacher ratio. St Thomas the Apostle School has a current MySchoolScout rating of 5.7 out of 10 and ranks #1,233 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

At 102 students, St Thomas the Apostle 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 Thomas the Apostle 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 Thomas the Apostle School compares to 64 public schools serving similar grades in Riverside, CA

Student-Teacher Ratio

12.9:1

This School

22.1:1

Public Avg

Avg School Size

102

This School

622

Public Avg

Avg School Scout Rating

5.7

This School

5.4

Public Avg

Student Demographics

White 78.4% vs 0%

Hispanic 8.8% vs 0%

Black 7.8% vs 0%

Asian 2.9% vs 0%

St Thomas the Apostle School Riverside Public Avg

Nearby Elementary Schools

School	Distance	Enrollment	STR	Rating
St Thomas the Apostle School (this school)	—	102	12.9:1	5.7
Chemawa Middle	0.4 mi	861	22.1:1	4.8
Sunshine Special Education	0.6 mi	74	14.8:1	5.2
Liberty Elementary	0.7 mi	630	25.2:1	5.2
Monroe Elementary	0.9 mi	578	21.4:1	5.3
Jackson Elementary	1.0 mi	691	23:1	3.8
Hawthorne Elementary	1.2 mi	644	23:1	5.3
Harrison Elementary	1.3 mi	547	20.3:1	6.2
Foothill Elementary	1.5 mi	459	20.9:1	5.0
Adams Elementary	1.5 mi	478	22.8:1	4.6
Jefferson Elementary	1.8 mi	916	24.8:1	4.2
Wells Middle	1.8 mi	783	23:1	4.9
Myra Linn Elementary	1.9 mi	438	20.9:1	4.5
Arlanza Elementary	2.0 mi	450	25:1	4.6
Madison Elementary	2.2 mi	626	24.1:1	5.0
Collett Elementary	2.4 mi	439	23.1:1	4.4
La Granada Elementary	2.4 mi	539	21.6:1	4.8
Terrace Elementary	2.5 mi	728	22.8:1	6.1
Sierra Middle	2.6 mi	835	22.6:1	4.6
Arizona Middle	2.6 mi	872	22.4:1	5.8
Mountain View Elementary	2.8 mi	827	23:1	5.5

Showing 20 of 64 schools. View all schools in Riverside

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

B 5.5 / 10

View breakdown

Student-Teacher Ratio 12.9:1

Instructional Commitment

B 5.8 / 10

View breakdown

School Day Length 6.8 hours

Annual Instructional Hours 1,210.4

Diversity & Inclusion

C+ 4.2 / 10

View breakdown

Diversity Index 36%

Community Context

Data Unavailable

School Profile

A- 8.1 / 10

View breakdown

Enrollment 102

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 78.4%

Hispanic 8.8%

Black 7.8%

Asian 2.9%

Native American 1.0%

Two or More 1.0%

Source: NCES Private School Survey (PSS)

Location

9136 MAGNOLIA AVE, Riverside, CA 92503

Nearby Alternatives

Families considering St Thomas the Apostle School may also want to explore other elementary schools in the area. Harrison Elementary (rated 6.2/10, 1.3 miles away), which scores slightly higher. Another option is Monroe Elementary (rated 5.3/10, 0.9 miles away), with a comparable rating. Additionally, Hawthorne Elementary (rated 5.3/10, 1.2 miles away), with a comparable rating. For more schools in Riverside, see our Riverside schools guide .

Nearby Schools

20 within 2.0 mi

School	Distance	Enrollment	Rating
Sherman Indian High School Riverside	0.2 mi	340	—
Chemawa Middle Riverside	0.4 mi	861	4.8
Sunshine Special Education Riverside	0.6 mi	74	5.2
Liberty Elementary Riverside	0.7 mi	630	5.2
Monroe Elementary Riverside	0.9 mi	578	5.3
Arlington High Riverside	1.0 mi	1,967	5.6
Jackson Elementary Riverside	1.0 mi	691	3.8
BRIGHT FUTURES ACADEMY RIVERSIDE Riverside	1.1 mi	70	6.4
Dynamic Hope Schools - Riverside Riverside	1.1 mi	29	—
Harrison Elementary Riverside	1.3 mi	547	6.2
Hawthorne Elementary Riverside	1.2 mi	644	5.3
Adams Elementary Riverside	1.5 mi	478	4.6
Foothill Elementary Riverside	1.5 mi	459	5.0
BETHEL CHRISTIAN SCHOOLS Riverside	1.7 mi	510	5.8
Jefferson Elementary Riverside	1.8 mi	916	4.2
Ramona High Riverside	1.8 mi	2,190	5.7
Wells Middle Riverside	1.8 mi	783	4.9
COTTONWOOD MONTESSORI Riverside	1.9 mi	5	—
Myra Linn Elementary Riverside	1.9 mi	438	4.5
Arlanza Elementary Riverside	2.0 mi	450	4.6

Neighborhood Census ACS (2019-2023)

Census data for ZIP 92503 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$91,523

Median Home Value

$556,300

Median Rent

$1,801/mo

Population

88,242

College Educated

20.7%

Homeownership

65.9%

Avg Commute

35.3 min

Poverty Rate

11.8%

Median Age

34.7

Similar Schools

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

School	Enrollment	Rating
NEIGHBORHOOD CHRISTIAN SCHOOL Dixon, CA	88	5.7
ST BRIDGET OF SWEDEN Lake Balboa, CA	88	5.7
TRINITY LUTHERAN SCHOOL Hawthorne, CA	71	5.7
BETH HILLEL DAY SCHOOL Valley Village, CA	85	5.8
INTERNATIONAL SCHOOL OF LOS ANGELES - WEST VALLEY Tarzana, CA	98	5.8
MONTESSORI GREENHOUSE SCHOOL Garden Grove, CA	64	5.8

Frequently Asked Questions

Common questions about St Thomas the Apostle School

What grades does St Thomas the Apostle School serve?

St Thomas the Apostle School serves students in grades Pre-K through 8th.

How many students attend St Thomas the Apostle School?

St Thomas the Apostle School has an enrollment of approximately 102 students.

What is the student-teacher ratio at St Thomas the Apostle School?

The student-teacher ratio at St Thomas the Apostle School is 12.9:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.

How does St Thomas the Apostle School rank in CA?

St Thomas the Apostle School ranks #1,233 of 1,787 private schools in CA.

What is St Thomas the Apostle School's MySchoolScout rating?

St Thomas the Apostle 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 Thomas the Apostle School a private school?

Yes, St Thomas the Apostle 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 Thomas the Apostle School a religious school?

St Thomas the Apostle School has a Roman Catholic religious affiliation.

Explore More Schools

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

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Neighborhood Context

Walk Score: 80 Very Walkable
Transit Score: 37 Some Transit
Bike Score: 67 Bikeable

Quick Facts NCES PSS (SY 2021-22)

Grades: Pre-K – 8th
Enrollment: 102
Gender Split: 61% M / 39% F
Student-Teacher Ratio: 12.9:1
Teachers (FTE): 8
Type: private
Coed Status: coed
Affiliation: Roman Catholic
School Day: 6.8 hours
Days Per Year: 178 days
Setting: Large City
County: Riverside County
Phone: (951) 689-1981

Resources & Links

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Data sources

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

St Thomas the Apostle School

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