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River Montessori Elementary Charter School District (2026) - Petaluma, CA

River Montessori Elementary Charter School District

3880 Cypress Dr. Ste. B
Petaluma, CA 94954-5613
9/
10
Top 20%

Top Rankings

River Montessori Elementary Charter School District ranks among the top 20% of public school district in California for:

Category
Attribute
Overall Rank
Highest overall rank (Top 20%)
Reading/Language Arts Proficiency
Highest reading/language arts proficiency (Top 20%)
Science Proficiency
Highest science proficiency (Top 20%)
For the 2026 school year, there is 1 public school serving 144 students in River Montessori Elementary Charter School District. This district's average testing ranking is 9/10, which is in the top 20% of public schools in California.
Public School in River Montessori Elementary Charter School District have an average math proficiency score of 42% (versus the California public school average of 34%), and reading proficiency score of 65% (versus the 47% statewide average).
Minority enrollment is 44% of the student body (majority Hispanic), which is less than the California public school average of 80% (majority Hispanic).

Overview

This School District
This State (CA)
# Schools
1 School
10,347 Schools
# Students
144 Students
5,790,405 Students
# Teachers
6 Teachers
267,593 Teachers
Student-Teacher Ratio
24:1
24:1

Student By Grade

District Rank

River Montessori Elementary Charter School District, which is ranked #338 of all 1,904 school districts in California (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
This School District
State Average (CA)
#348 out of 1932 school districts
(Top 20%)
42%
34%
60-69%
47%
≥50%
29%

Students by Ethnicity:

0.62
0.63
% American Indian
n/a
1%
% Asian
6%
12%
% Hispanic
20%
56%
% Black
2%
5%
% White
56%
20%
% Hawaiian
n/a
n/a
% Two or more races
16%
6%
All Ethnic Groups

District Revenue and Spending

The revenue/student of $13,125 in this school district is less than the state median of $20,100. The school district revenue/student has grown by 20% over four school years.
The school district's spending/student of $11,674 is less than the state median of $18,511. The school district spending/student has grown by 15% over four school years.
This School District
This State (CA)
Total Revenue
$2 MM
$116,387 MM
Spending
$2 MM
$107,188 MM
Revenue / Student
$13,125
$20,100
Spending / Student
$11,674
$18,511

Best River Montessori Elementary Charter School District Public Schools (2026)

School
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
River Montessori Elementary Charter
Charter School
(Math: 40-44% | Reading: 60-69%)
Rank:
8/
10
Top 30%
3880 Cypress Dr. Ste. B
Petaluma, CA 94954
(707) 778-6414
Gr: K-6 | 144 students Student-teacher ratio: 24:1 Minority enrollment: 44%

Frequently Asked Questions

How many schools belong to River Montessori Elementary Charter School District?
River Montessori Elementary Charter School District manages 1 public schools serving 144 students.
What is the rank of River Montessori Elementary Charter School District?
River Montessori Elementary Charter School District is ranked #338 out of 1,904 school districts in California (top 20%) based off of combined math and reading proficiency testing data for the 2022-2023 school year. This district ranks in the top 20% of California school districts for: Highest overall rank (Top 20%), Highest reading/language arts proficiency (Top 20%) and Highest science proficiency (Top 20%)
What is the racial composition of students in River Montessori Elementary Charter School District?
56% of River Montessori Elementary Charter School District students are White, 20% of students are Hispanic, 16% of students are Two or more races, 6% of students are Asian, and 2% of students are Black.
What is the student/teacher ratio of River Montessori Elementary Charter School District?
River Montessori Elementary Charter School District has a student/teacher ratio of 24:1, which is higher than the California state average of 22:1.
What is River Montessori Elementary Charter School District's spending/student ratio?
The school district's spending/student of $11,674 is less than the state median of $18,511. The school district spending/student has grown by 15% over four school years.

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Quick Facts (2026)

  • District size: 1 school
  • Grades: K-06
  • Enrollment: 144 students
  • Student-Teacher Ratio: 24:1
  • Minority Enrollment: 44%
  • : Top 20% in CA
  • : 42% (Top 30%)
  • : 60-69% (Top 20%)
  • : ≥50% (Top 20%)
  • Source: National Center for Education Statistics (NCES), CA Dept. of Education

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