Private School Review - Established 2003

Millbrae Private Schools (2026-27)

For the 2026-27 school year, there are 3 private schools serving 306 students in Millbrae, CA, 9% of all K-12 students in Millbrae, CA are educated in private schools versus public schools (compared to the CA state average of 10%).
The average acceptance rate is 50%, which is lower than the California private school average acceptance rate of 80%.
33% of private schools in Millbrae, CA are religiously affiliated (most commonly Catholic).

Quick Facts (2026-27)

Quick Facts (2026-27)

Top Ranked Millbrae Private Schools (2026-27)

Map of Millbrae Montessori School
Millbrae Montessori School
Gr: NS-PK | 50 students
Avg. class size: 22 students
Sports: 2
Montessori School
797B Santa Margarita Ave
Millbrae, CA 94030
(650) 588-2229
(1)
View Profile
Map of Glen Oaks Montessori School
Glen Oaks Montessori School
Gr: PK-K | 31 students
Montessori School
797 Santa Margarita Ave Ste A
Millbrae, CA 94030
(650) 872-1112
View Profile
Map of St. Dunstan Catholic School
St. Dunstan Catholic School
Gr: K-8 | 225 students
Catholic
1150 Magnolia Ave
Millbrae, CA 94030
(650) 697-8119
View Profile
[+] Show Closed Private Schools in Millbrae, California

Millbrae, California Private Schools (Closed)

Map of A Childs Way
A Childs Way
Gr: K | 21 students
Daycare / Preschool
817 Murchison Dr
Millbrae, CA 94030
(650) 697-4760
View Profile

Millbrae, CA Private School Trends (10-Year)

3
Private Schools
306
Students
-19.9% (-76 students) 10-yr
$4,933
Avg. Tuition
+334.6% (+$3,798) 10-yr
22
Avg. Class Size
+4.8% (+1 student) 10-yr
56%
Students of Color
-13.8% (-9.0 pp) 10-yr
9:1
Student-Teacher Ratio
-18.2% (-2.0) 10-yr
Download town snapshot: CSV | XML | JSON Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission.
Enrollment & Diversity
Category
This Town (Millbrae)
This State (CA)
# Schools
3 Schools
3,910 Schools
# Students
306 Students
659,293 Students

Trends in the Average Number of Students Per Private School

YearMillbrae, CA AvgCalifornia (CA)National
2025102180179
2024102175172
202393181174
202287189185
202187185180
202087179171
2019104179175
2018104173172
2017104179180
2016104173178
2015127162167
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

% Students of Color
56%
52%

Percentage of Students of Color Trends (2015-2025)

YearMillbrae, CA AvgCalifornia (CA)National
202556%51%34%
202456%51%34%
202357%50%33%
202257%48%33%
202157%48%32%
202057%48%32%
201964%48%31%
201864%47%31%
201765%50%32%
201665%49%32%
201565%49%32%
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

0.75
0.74

Diversity Score Trends

YearMillbrae, CA AvgCalifornia (CA)National
20250.750.740.65
20240.750.740.65
20230.720.740.65
20220.750.730.64
20210.750.730.64
20200.750.730.64
20190.680.730.63
20180.680.730.63
20170.680.720.61
20160.680.720.61
20150.680.720.61
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Show more data/charts: racial breakdown
# American Indian Students
n/a
3,575 Students
% American Indian Students
n/a
1%

Percentage of Private School Students of American Indian Trends

YearMillbrae, CA AvgCalifornia (CA)National
20221%1%2%
20211%1%1%
20201%1%1%
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

# Asian Students
65 Students
71,780 Students
% Asian Students
21%
11%

Asian Student Percentage Trends

YearMillbrae, CA AvgCalifornia (CA)National
202521%11%5%
202421%11%5%
202324%11%5%
202221%10%4%
202121%10%4%
202021%10%4%
201921%10%4%
201821%10%4%
201721%10%4%
201621%10%4%
201521%10%4%
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

# Hispanic Students
36 Students
104,409 Students
% Hispanic Students
12%
16%

Hispanic Student Percentage Trends

YearMillbrae, CA AvgCalifornia (CA)National
202512%16%9%
202412%16%9%
202313%16%9%
202211%16%8%
202111%16%9%
202011%16%9%
20199%16%8%
20189%17%8%
20179%17%8%
20169%17%8%
20159%17%8%
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

# Black Students
13 Students
30,223 Students
% Black Students
4%
5%

Black Student Percentage Trends

YearMillbrae, CA AvgCalifornia (CA)National
20254%5%7%
20244%5%7%
20234%5%8%
20224%4%7%
20214%5%7%
20204%5%8%
20193%4%7%
20183%4%7%
20173%5%7%
20163%5%7%
20153%5%8%
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

# White Students
103 Students
235,771 Students
% White Students
34%
37%

White Student Percentage Trends

YearMillbrae, CA AvgCalifornia (CA)National
202534%37%52%
202434%37%52%
202344%38%52%
202233%40%54%
202133%40%54%
202033%40%54%
201918%41%56%
201818%41%56%
201718%43%58%
201618%43%58%
201518%43%58%
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

# Hawaiian Students
2 Students
5,499 Students
% Hawaiian Students
1%
1%
# Two or more races Students
n/a
n/a
% of Two or more races Students
n/a
n/a
# Others Students
87 Students
188,336 Students
% of Others Students
28%
29%

Other Races Student Percentage Trends

YearMillbrae, CA AvgCalifornia (CA)National
202528%29%26%
202428%29%26%
202314%28%25%
202229%28%25%
202129%27%25%
202029%27%24%
201949%26%24%
201849%26%23%
201749%24%22%
201649%24%22%
201549%23%21%
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

All Ethnic Groups
Academics
# Teachers
35 Teachers
55,641 Teachers
Average Student-Teacher Ratio
9:1
12:1

Student-Teacher Ratio Trends (2015-2025)

YearMillbrae, CA AvgCalifornia (CA)National
20259:112:111:1
20249:112:111:1
202310:112:111:1
202212:112:111:1
202112:113:111:1
202012:113:112:1
201912:112:112:1
201812:112:112:1
201712:113:112:1
201612:113:112:1
201511:113:112:1
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Average Class Size
22 students
17 students

Class Size Trends (2015-2025)

YearMillbrae, CA AvgCalifornia (CA)National
2025221715
2024221715
2023221715
2022211715
2021211715
2020211715
2019211715
2018211715
2017211715
2016211715
2015211715
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Tuition & Aid
Average Yearly Tuition Cost
$4,933
$18,350

Tuition Cost Trends (2015-2025)

YearMillbrae, CA AvgCalifornia (CA)National
2025$4,933$18,076$15,012
2024$1,135$17,195$13,254
2023$1,135$16,660$12,626
2022$1,135$15,979$12,187
2021$1,135$15,298$11,800
2020$1,135$14,748$11,512
2019$1,135$14,369$11,293
2018$1,135$13,813$11,017
2017$1,135$13,422$10,708
2016$1,135$12,852$10,356
2015$1,135$11,932$9,939
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Admissions & Athletics
Average Acceptance Rate
50%
80%

Acceptance Rate Trends (2015-2025)

YearMillbrae, CA AvgCalifornia (CA)National
202550%80%81%
202450%84%85%
202350%84%85%
202250%84%85%
202150%84%85%
202050%84%85%
201950%84%85%
201850%84%85%
201750%85%85%
201650%84%85%
201550%84%85%
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Average Number of Sports
2 sports
7 sports

Frequently Asked Questions

What are the top ranked private schools in Millbrae, CA?
The top ranked private schools in Millbrae, CA is Millbrae Montessori School.
How many private schools are located in Millbrae?
3 private schools are located in Millbrae.
What percentage of students in Millbrae go to private school?
9% of all K-12 students in Millbrae are educated in private schools (compared to the CA state average of 10%).
What percentage of private schools are religiously affiliated in Millbrae?
33% of private schools in Millbrae are religiously affiliated (most commonly Catholic).

Recent Articles

How Much Homework Is Too Much?
How Much Homework Is Too Much?
Learn how to compare private school homework expectations, recognize excessive workloads, evaluate assignment quality, and ask better questions about academic balance before choosing a school for your child.
Learning Support Without a Formal Program
Learning Support Without a Formal Program
Learn what private schools mean by informal learning support, how services differ from formal programs, and which questions families should ask before choosing the right school today.
Beyond AP vs. IB: How to Judge Academic Rigor
Beyond AP vs. IB: How to Judge Academic Rigor
Learn how to judge academic rigor at private schools without AP or IB by examining curriculum depth, assessments, faculty expectations, advanced coursework, student work, and college preparation outcomes.
Area schools map

Filter Schools

School Level
Must Offer Grade
Show more
Gender
School Focus
Religious Affiliation
ADD/ADHD Support
Summer Program

Quick Links

SCHOOL SEARCH TOOLS:
SCHOOL BY TYPE (CA):
OPEN-HOUSES & JOBS:
PUBLIC & BOARDING SCHOOLS:
PRIVATE SCHOOL DATA: