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Stockton Accelerated Institute

116 W Willow St Stockton, CA 95202

Quick Facts (2026-27)

  • Top Ranked CA School
  • School Type: Montessori School
  • Grades: Kindergarten-12
  • Enrollment: 60 students
  • Average class size: 6 students
  • Application Deadline: None / Rolling
  • Source: ✓Verified school update
Stockton Accelerated Institute Photo #1 - Work hard, play hard. #PElife
Stockton Accelerated Institute Photo #2
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About the School

  • Stockton Accelerated Institute in Stockton, CA, serves 60 students from kindergarten through 12th grade in a city–based Montessori program.
  • Founded in 1998, the school maintains a student–teacher ratio of 5:1 with an average class size of 6 students.
  • The faculty includes 90% of teachers with advanced degrees, supporting instructional quality across all grades.
  • The student body is diverse, with 82.7% students of color enrolled in this co–educational private school.
  • Stockton Accelerated Institute offers a formal dress code and provides summer school options for continued learning.

Quick Facts (2026-27)

  • Top Ranked CA School
  • School Type: Montessori School
  • Grades: Kindergarten-12
  • Enrollment: 60 students
  • Average class size: 6 students
  • Application Deadline: None / Rolling
  • Source: ✓Verified school update

School Rankings

Stockton Accelerated Institute ranks among the top 20% of private schools in California for:

Category
Attribute

School Facts

School Type
Religious Affiliation
Grades Offered
Grades Kindergarten-12
Students By Grade
Year Founded
1998
Summer School Offered
Yes
School Calendar

Student Body

Total Students
60 students
Student Body Type
Co-ed
% Students of Color
83%
State avg.: 52%

Academic Profile

Total Classroom Teachers
11 teachers
Student-Teacher Ratio
5:1
National avg.:
% Faculty w/Advanced Degree
90%
Average Class Size
6 students
Classroom Dress Code
Formal
School Membership(s)School Assoc.

Tuition & Financial Aid

Admission Deadline
None / Rolling
Application URL

Extracurriculars

Total ExtracurricularsTotal Extra-curric.
2 extracurriculars
ExtracurricularsExtra-curric.
Recreational Athletic Programs:
International Student OrganizationRegional Student Conventions

Frequently Asked Questions

What is Stockton Accelerated Institute's ranking?
Stockton Accelerated Institute ranks among the top 20% of private schools in California for: Highest percentage of faculty with advanced degrees.
When is the application deadline for Stockton Accelerated Institute?
The application deadline for Stockton Accelerated Institute is rolling (applications are reviewed as they are received year-round).
In what neighborhood is Stockton Accelerated Institute located?
Stockton Accelerated Institute is located in the Civic Center neighborhood of Stockton, CA. There are 2 other private schools located in Civic Center.

School Reviews

  5.00 out of 5  (2 reviews)
5  
My grandson is in his third year here. The academic approach is excellent. In the areas of kindness, love of the children, helpfulness, safety, adult role modeling, student interaction, fellowship, etc., that I have observed, are above and beyond excellent. I am happy to endorse this school.
- Posted by
5  
I have my children here and very happy. Not every school is perfect but SAIL is as close to it as possible. Love the fellow parents, staff and friendly family attitude.
- Posted by

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Did You Know?

The average acceptance rate in Stockton, CA is 77% (read more about average acceptance rates across the country).

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