Quick Facts (2026-27)
- School Type: Montessori School
- Grades: Prekindergarten-1
- Enrollment: 14 students
- Application Deadline: None / Rolling
- Source: National Center for Education Statistics (NCES)
Ontario Progressive Montessori School
About the School
- Ontario Progressive Montessori School in Ontario, CA, enrolls 14 students in a nonsectarian Montessori program serving preschool through first grade in a midsize city community.
- The school maintains a student–teacher ratio of 14:1 with one full–time teacher supporting early childhood education.
- Founded with a focus on Montessori methods, the school holds membership in the American Montessori Society and other religious school associations while maintaining a nonsectarian orientation.
- The student body is composed of 80% students of color, reflecting local community diversity in its early learning environment.
- As a California K–1 private school, Ontario Progressive Montessori School provides education in a city setting, offering a small enrollment size suited for focused early childhood instruction.
Quick Facts (2026-27)
- School Type: Montessori School
- Grades: Prekindergarten-1
- Enrollment: 14 students
- Application Deadline: None / Rolling
- Source: National Center for Education Statistics (NCES)
School Facts
School Type
Religious Affiliation
Grades Offered
Grades Prekindergarten-1
Students By Grade
Student Body
Total Students
14 students
Student Body Type
Co-ed
% Students of Color
80%
State avg.: 52%
Academic Profile
Total Classroom Teachers
1 teacher
Student-Teacher Ratio
14:1
National avg.:
School Membership(s)School Assoc.
Tuition & Financial Aid
Admission Deadline
None / Rolling
Frequently Asked Questions
When is the application deadline for Ontario Progressive Montessori School?
The application deadline for Ontario Progressive Montessori School is rolling (applications are reviewed as they are received year-round).
Related Schools
Show me:
People that viewed Ontario Progressive Montessori School also viewed these schools: International Montessori School, Carden Arbor View School, Kiddie Academy, Foothill Country Day School and Western Christian School.
The nearest high school and elementary school to Ontario Progressive Montessori School is Ontario Christian School (0.8 miles away)
The nearest preschool is Mount Zion Christian School (0.4 miles away)
Show me:
Show me:
Distance: 3.6 mi
Gr: 1-7 | 35 students
Avg. class size: 21 students
Montessori School
9185 Monte Vista Ave
Montclair, CA 91763
(909) 684-8272
Distance: 4.8 mi
Gr: K-8 | 175 students
Avg. class size: 20 students
Sports: 5 | Extracurriculars: 10
1530 North San Antonio Ave
Upland, CA 91786
(909) 982-9919
Distance: 4.9 mi
Gr: PK-1 | 160 students
Daycare / Preschool
663 E Foothill Blvd
Claremont, CA 91711
(909) 621-5112
Distance: 5.5 mi
Gr: NS-8 | 438 students
Avg. class size: 20 students
Sports: 7 | Extracurriculars: 10
1035 Harrison Ave
Claremont, CA 91711
(909) 626-5681
Distance: 5.8 mi
Gr: K-8 | 570 students
Avg. class size: 24 students
Sports: 11
Christian
3105 Padua Ave
Claremont, CA 91711
(909) 624-8291
Distance: 6.0 mi
Gr: K-12 | 922 students
Avg. class size: 20 students
Sports: 12 | Extracurriculars: 15
Christian
10900 Civic Center Drive
Rancho Cucamonga, CA 91730
(909) 758-8747
Distance: 6.6 mi
Gr: NS-12 | 82 students
Alternative School
8780 19th St # 214 Alta Loma
Rancho Cucamonga, CA 91701
(909) 429-9484
Distance: 3.6 mi
Gr: 1-7 | 35 students
Avg. class size: 21 students
Montessori School
9185 Monte Vista Ave
Montclair, CA 91763
(909) 684-8272
Distance: 4.8 mi
Gr: K-8 | 175 students
Avg. class size: 20 students
Sports: 5 | Extracurriculars: 10
1530 North San Antonio Ave
Upland, CA 91786
(909) 982-9919
Distance: 4.9 mi
Gr: PK-1 | 160 students
Daycare / Preschool
663 E Foothill Blvd
Claremont, CA 91711
(909) 621-5112
Distance: 5.5 mi
Gr: NS-8 | 438 students
Avg. class size: 20 students
Sports: 7 | Extracurriculars: 10
1035 Harrison Ave
Claremont, CA 91711
(909) 626-5681
Distance: 5.8 mi
Gr: K-8 | 570 students
Avg. class size: 24 students
Sports: 11
Christian
3105 Padua Ave
Claremont, CA 91711
(909) 624-8291
Distance: 4.9 mi
Gr: PK-1 | 160 students
Daycare / Preschool
663 E Foothill Blvd
Claremont, CA 91711
(909) 621-5112
Distance: 5.5 mi
Gr: NS-8 | 438 students
Avg. class size: 20 students
Sports: 7 | Extracurriculars: 10
1035 Harrison Ave
Claremont, CA 91711
(909) 626-5681
Distance: 6.6 mi
Gr: NS-12 | 82 students
Alternative School
8780 19th St # 214 Alta Loma
Rancho Cucamonga, CA 91701
(909) 429-9484
Distance: 6.9 mi
Gr: PK-8 | 305 students
Avg. class size: 18 students
Sports: 7 | Extracurriculars: 15
Brethren
9974 19th Street
Rancho Cucamonga, CA 91737
(909) 989-2804
Distance: 2327.3 mi
Gr: PK-K | 91 students
Daycare / Preschool
407 Lloyd Ave
Downingtown, PA 19335
(610) 269-4423
Distance: 0.4 mi
Gr: PK-K | 12 students
Daycare / Preschool (Christian)
224 W California St
Ontario, CA 91762
(909) 988-2280
Distance: 0.8 mi
Gr: PK-12 | 1,428 students
Christian
1907 S Euclid Ave
Ontario, CA 91762
(909) 984-1756
Distance: 1.1 mi
Gr: PK-12 | 54 students
Specialized Curriculum
104 W C St
Ontario, CA 91762
(800) 419-5216
Distance: 1.1 mi
Gr: NS-PK
Daycare / Preschool
2140 S Euclid Ave
Ontario, CA 91762
(909) 983-5007
Distance: 1.2 mi
Gr: K-8 | 304 students
Avg. class size: 26 students
Sports: 4 | Extracurriculars: 7
Catholic
322 W D St
Ontario, CA 91762
(909) 984-9123
Distance: 0.8 mi
Gr: PK-12 | 1,428 students
Christian
1907 S Euclid Ave
Ontario, CA 91762
(909) 984-1756
Distance: 1.1 mi
Gr: PK-12 | 54 students
Specialized Curriculum
104 W C St
Ontario, CA 91762
(800) 419-5216
Distance: 2.0 mi
Gr: PK-12 | 236 students
Avg. class size: 12 students
Sports: 12 | Extracurriculars: 5
11255 Central Ave.
Ontario, CA 91762
(909) 999-0025
Distance: 2.6 mi
Gr: K-12 | 113 students
Special Education School
20 W 7th St
Upland, CA 91786
(909) 581-8568
Distance: 3.2 mi
Gr: 9-12 | 620 students
Avg. class size: 20 students
Sports: 15 | Extracurriculars: 20
Christian
100 West 9th Street
Upland, CA 91786
(909) 920-5858
Distance: 0.8 mi
Gr: PK-12 | 1,428 students
Christian
1907 S Euclid Ave
Ontario, CA 91762
(909) 984-1756
Distance: 1.1 mi
Gr: PK-12 | 54 students
Specialized Curriculum
104 W C St
Ontario, CA 91762
(800) 419-5216
Distance: 1.2 mi
Gr: K-8 | 304 students
Avg. class size: 26 students
Sports: 4 | Extracurriculars: 7
Catholic
322 W D St
Ontario, CA 91762
(909) 984-9123
Distance: 2.0 mi
Gr: PK-12 | 236 students
Avg. class size: 12 students
Sports: 12 | Extracurriculars: 5
11255 Central Ave.
Ontario, CA 91762
(909) 999-0025
Distance: 2.4 mi
Gr: PK-8 | 236 students
Catholic
5303 Orchard St
Montclair, CA 91763
(909) 621-4418
Distance: 0.4 mi
Gr: PK-K | 12 students
Daycare / Preschool (Christian)
224 W California St
Ontario, CA 91762
(909) 988-2280
Distance: 0.8 mi
Gr: PK-12 | 1,428 students
Christian
1907 S Euclid Ave
Ontario, CA 91762
(909) 984-1756
Distance: 1.1 mi
Gr: PK-12 | 54 students
Specialized Curriculum
104 W C St
Ontario, CA 91762
(800) 419-5216
Distance: 1.1 mi
Gr: NS-PK
Daycare / Preschool
2140 S Euclid Ave
Ontario, CA 91762
(909) 983-5007
Distance: 1.9 mi
Gr: PK-K | 28 students
Daycare / Preschool (Other Lutheran)
5500 Francis Ave
Chino, CA 91710
(909) 627-1433
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Miles
Quick Facts
(Math: 21% | Reading: 34%)
Rank:
Rank:
4/
Bottom 50%10
1120 South Euclid Ave.
Ontario, CA 91762
(909) 984-5119
Ontario, CA 91762
(909) 984-5119
0.2 miles
Gr: K-6 | 572 students Student-Teacher Ratio: 21:1 Minority enrollment: 99%
(Math: 33% | Reading: 42%)
Rank:
Rank:
6/
Top 50%10
1450 South Sultana Ave.
Ontario, CA 91761
(909) 986-8577
Ontario, CA 91761
(909) 986-8577
0.5 miles
Gr: 7-8 | 510 students Student-Teacher Ratio: 16:1 Minority enrollment: 98%
(Math: 34% | Reading: 33%)
Rank:
Rank:
5/
Bottom 50%10
715 West Francis St.
Ontario, CA 91762
(909) 984-1759
Ontario, CA 91762
(909) 984-1759
0.8 miles
Gr: K-6 | 641 students Student-Teacher Ratio: 24:1 Minority enrollment: 97%
(Math: 21% | Reading: 60%)
Rank:
Rank:
6/
Top 50%10
901 West Francis St.
Ontario, CA 91762
(909) 988-7411
Ontario, CA 91762
(909) 988-7411
0.9 miles
Gr: 9-12 | 1,994 students Student-Teacher Ratio: 22:1 Minority enrollment: 98%
(Math: 25% | Reading: 40%)
Rank:
Rank:
5/
Bottom 50%10
1845 South Sultana Ave.
Ontario, CA 91761
(909) 986-1215
Ontario, CA 91761
(909) 986-1215
0.9 miles
Gr: K-6 | 589 students Student-Teacher Ratio: 20:1 Minority enrollment: 96%
School Reviews
Endorse Ontario Progressive Montessori School. Endorsements should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
- Academic or athletic awards
Recent Articles
When Your Child Outpaces the ²ÝÁñÉçÇø School Curriculum
Learn what parents can do when a child finishes private school coursework early, including acceleration, curriculum compacting, advanced classes, enrichment, and signs the school needs a new plan.
How Much Teacher Access Does Your Child Get?
Learn how to evaluate teacher access at private schools, including extra-help time, advising, communication, academic support, and the questions families should ask before choosing a school today.
When a ²ÝÁñÉçÇø School Teacher Leaves Midyear
When a private school teacher leaves midyear, parents need clear answers. Learn what schools should do, what children may experience, and when a departure signals deeper concerns.
Request Info
Did You Know?
The average private school tuition in San Bernardino County, CA is $13,723 for elementary schools and $14,717 for high schools (read more about average private school tuition across the country).
The average acceptance rate in San Bernardino County, CA is 88% (read more about average acceptance rates across the country).
Most Popular Articles
Quick Links
SCHOOL SEARCH TOOLS:
SCHOOL BY TYPE (CA):
- Blue Ribbon (82)
- All-girls (56)
- All-boys (47)
- Montessori (485)
- Daycare / Preschools (2,260)
- Summer School Programs (1,121)
- Dual Language Immersion Programs (58)
- Special Education (223)
- Alternative (177)
- ADD/ADHD Support (497)
- Online Schools (17)
- Religiously Affiliated (1,862)
- School Membership Associations (2,394)
- Schools with famous alumni (314)
OPEN-HOUSES & JOBS:
PUBLIC & BOARDING SCHOOLS:
PRIVATE SCHOOL DATA: