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St Catherine Of Siena School

Private, Roman Catholic Grades PK, KG-8

155

Students ?

17.0

Student/teacher ratio ?

≥ 95%

Kindergartners with all required immunizations (2024-25)

604 Mellus St
Martinez, CA 94553-1639

(925) 228-4140

Racial breakdown:

White:

37.4%

Hispanic:

29.0%

Two or more races:

19.4%

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Schools Near St Catherine Of Siena School

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Ranking:

E Elementary M Middle H High A Alternative P Private

School	Students/Teachers	Vaccination (2024-25)	Per Pupil Expenditures (2025)
St Catherine Of Siena School	Private, Roman Catholic	PK, KG-8	604 Mellus St	Martinez	94553	Contra Costa County	(925) 228-4140	155	8	17.0	58 (37.4%)	1 (0.6%)	45 (29.0%)	8 (5.2%)	1 (0.6%)	0 (0.0%)	30 (19.4%)	≥ 95%
Woodbridge Children's Center - John Muir	Private, Nonsectarian	PK, KG-4	205 Vista Way	Martinez	94553	Contra Costa County	(925) 387-5110	31	3	10.8	21 (67.7%)	0 (0.0%)	4 (12.9%)	2 (6.5%)	0 (0.0%)	0 (0.0%)	0 (0.0%)
St Dominic Elementary School	Private, Roman Catholic	K-8	935 E 5th St	Benicia	94510	Solano County	(707) 745-1266	304	15	20.9	86 (28.3%)	3 (1.0%)	97 (31.9%)	50 (16.4%)	0 (0.0%)	15 (4.9%)	53 (17.4%)
Jesus Our Restorer Christian School	Private, Christian (no specific denomination)	5-7	96 Blackwood Dr	Pacheco	94553	Contra Costa County	(707) 373-1144
Anova Center For Education	Private, Nonsectarian	1-12	1140 Galaxy Way # 100	Concord	94520	Contra Costa County	(707) 570-9841	71	8	8.8	36 (50.7%)	7 (9.9%)	18 (25.4%)	6 (8.5%)	0 (0.0%)	1 (1.4%)	3 (4.2%)
New Hope Academy	Private, Pentecostal	PK, KG-5	2120 Olivera Ct	Concord	94520	Contra Costa County	(925) 682-5918
Pleasant Hill Adventist Academy	Private, Seventh-Day Adventist	K-12	796 Grayson Rd	Pleasant Hill	94523	Contra Costa County	(925) 934-9261	114	11	10.0	16 (14.0%)	19 (16.7%)	39 (34.2%)	22 (19.3%)	0 (0.0%)	0 (0.0%)	18 (15.8%)
De La Salle Academy	Private, Roman Catholic, Boys	5-8	1380 Galaxy Way	Concord	94520	Contra Costa County	(925) 471-8153	68	5	12.8	0 (0.0%)	1 (1.5%)	56 (82.4%)	3 (4.4%)	0 (0.0%)	1 (1.5%)	7 (10.3%)
Christ The King Catholic School	Private, Roman Catholic	K-8	195b Brandon Rd	Pleasant Hill	94523	Contra Costa County	(925) 685-1109	322	19	17.1	168 (52.2%)	5 (1.6%)	72 (22.4%)	17 (5.3%)	1 (0.3%)	0 (0.0%)	59 (18.3%)
Queen Of All Saints School	Private, Roman Catholic	PK, KG-8	2391 Grant St	Concord	94520	Contra Costa County	(925) 685-8700	322	14	20.7	76 (23.6%)	9 (2.8%)	109 (33.9%)	40 (12.4%)	2 (0.6%)	5 (1.6%)	46 (14.3%)	≥ 95%

Frequently Asked Questions about St Catherine Of Siena School

What is the racial makeup of St Catherine Of Siena School?

Students at St Catherine Of Siena School are 37% White, 29% Hispanic, 19% Two or more races, 8% Not Specified, 5% Asian.

How many students attend St Catherine Of Siena School?

In the 2023-24 school year, 155 students attended St Catherine Of Siena School.

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Latest California data All new data »

2013–14 through 2024–25 immunization rates (updated)NewOct 19, 2026

2025–26 attendance data, dropout rates & graduation ratesNewOct 15, 2026

2025–26 CAST, CSA Spanish & Smarter Balanced Assessments scoresNewOct 15, 2026

2024–25 school spending dataJul 1, 2026

SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the California Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.

School								Students/Teachers											Vaccination (2024-25)		Per Pupil Expenditures (2025)
Name	Type	Grades	Address	City	Zip	County	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/reduced lunch	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Vaccination: Kindergartners with all required immunizations	Vaccination: Exemption rate	Total
St Catherine Of Siena School	Private, Roman Catholic	PK, KG-8	604 Mellus St	Martinez	94553	Contra Costa County	(925) 228-4140	155	8	17.0		58 (37.4%)	1 (0.6%)	45 (29.0%)	8 (5.2%)	1 (0.6%)	0 (0.0%)	30 (19.4%)	≥ 95%
Woodbridge Children's Center - John Muir	Private, Nonsectarian	PK, KG-4	205 Vista Way	Martinez	94553	Contra Costa County	(925) 387-5110	31	3	10.8		21 (67.7%)	0 (0.0%)	4 (12.9%)	2 (6.5%)	0 (0.0%)	0 (0.0%)	0 (0.0%)
St Dominic Elementary School	Private, Roman Catholic	K-8	935 E 5th St	Benicia	94510	Solano County	(707) 745-1266	304	15	20.9		86 (28.3%)	3 (1.0%)	97 (31.9%)	50 (16.4%)	0 (0.0%)	15 (4.9%)	53 (17.4%)
Jesus Our Restorer Christian School	Private, Christian (no specific denomination)	5-7	96 Blackwood Dr	Pacheco	94553	Contra Costa County	(707) 373-1144
Anova Center For Education	Private, Nonsectarian	1-12	1140 Galaxy Way # 100	Concord	94520	Contra Costa County	(707) 570-9841	71	8	8.8		36 (50.7%)	7 (9.9%)	18 (25.4%)	6 (8.5%)	0 (0.0%)	1 (1.4%)	3 (4.2%)
New Hope Academy	Private, Pentecostal	PK, KG-5	2120 Olivera Ct	Concord	94520	Contra Costa County	(925) 682-5918
Pleasant Hill Adventist Academy	Private, Seventh-Day Adventist	K-12	796 Grayson Rd	Pleasant Hill	94523	Contra Costa County	(925) 934-9261	114	11	10.0		16 (14.0%)	19 (16.7%)	39 (34.2%)	22 (19.3%)	0 (0.0%)	0 (0.0%)	18 (15.8%)
De La Salle Academy	Private, Roman Catholic, Boys	5-8	1380 Galaxy Way	Concord	94520	Contra Costa County	(925) 471-8153	68	5	12.8		0 (0.0%)	1 (1.5%)	56 (82.4%)	3 (4.4%)	0 (0.0%)	1 (1.5%)	7 (10.3%)
Christ The King Catholic School	Private, Roman Catholic	K-8	195b Brandon Rd	Pleasant Hill	94523	Contra Costa County	(925) 685-1109	322	19	17.1		168 (52.2%)	5 (1.6%)	72 (22.4%)	17 (5.3%)	1 (0.3%)	0 (0.0%)	59 (18.3%)
Queen Of All Saints School	Private, Roman Catholic	PK, KG-8	2391 Grant St	Concord	94520	Contra Costa County	(925) 685-8700	322	14	20.7		76 (23.6%)	9 (2.8%)	109 (33.9%)	40 (12.4%)	2 (0.6%)	5 (1.6%)	46 (14.3%)	≥ 95%