The brief
A charter elementary school in Petaluma, CA serving grades Kindergarten – 6th.
Students at River Montessori Elementary Charter score 59% proficient, which is below what's typical for similar communities (expected: 62%).
It ranks 4,009 of 9,557 schools in California and 1 of 1 in River Montessori Elementary Charter District.
- 202558%
- 202455%
- 2023: no results on file
- 202260%
- 2020–2021: no results on file
- 201932%
- 201832%
About this school's data1 correction under review · rating: low confidence · 6 sources, 2019–2025
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, an estimate, or describes a surrounding area rather than the school, that limitation is named here.
Attendance data is under correction. This existing Resources & Environment score and overall rating may still reflect an unverified attendance input.
Full Profile · 3/3 metrics
Multi-year averages used by the rating model: math 45% (multi-year average, 2018-2025) · reading/ELA 60% (multi-year average, 2018-2025).
- School directory (enrollment, grades, staff, contact)
- NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
- Source period: SY 2023–24. A newer release may be available.
- MySchoolScout rating and rank
- MySchoolScout ranking model · Low confidence
- Vintage not available. Do not use this measure alone.
- Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
- Math proficiency
- State department of education · 2025 CAASPP · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2025 CAASPP. A newer release may be available.
- Derived from source records rather than read directly from one field.
- Reading/ELA proficiency
- State department of education · 2025 CAASPP · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2025 CAASPP. A newer release may be available.
- Derived from source records rather than read directly from one field.
- Student progress (growth)
- State assessments · Mixed source periods · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
- Neighborhood (income, housing, education)
- U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
- Older source: ACS 2019–2023 5-year estimates. Use as historical context.
- Reported for the ZCTA for ZIP 94954; this does not measure the attendance area.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2018-2025; directory SY 2023–24
The neighborhood
Where it sits, and what the area looks like.The area
- Median income
- $107,564
- Median home value
- $790,100
- Median rent
- $2,405/mo
- College educated
- 36.9%
- Homeownership
- 66.7%
- Poverty rate
- 5.9%
U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 94954; this is area context, not an attendance boundary.
Getting around
- Walk Score
- 35
- Car-Dependent
- Transit Score
- 21
- Minimal Transit
- Bike Score
- 45
- Somewhat Bikeable
- City reported crime
- 1,430/100K
- Reported Part-1 offenses (violent + property + arson) per 100,000 residents, from the FBI Uniform Crime Reporting program for Petaluma. This is a city-level reported-crime measure, not a school safety rating.
Walk, transit and bike scores by
FBI Uniform Crime Reporting · 2025 · city context (Petaluma), not school-level safety or attendance eligibility. Source details
Source period: 2025. Freshness not available.
Programs and who goes here
What the campus offers, and who it enrolls.Who goes here
- Free or reduced lunch
- 25.6%
- Students qualifying for federal meal assistance. Shown separately, never in the score.
NCES Common Core of Data (CCD).
Compare nearby
Grade-compatible schools using the same rating model.- 8.1Compare →
- 7.2Compare →
- River Montessori Elementary Charter6.7
- 5.8Compare →
- 5.6Compare →
- 5.5Compare →
- 5.3Compare →
- 3.7Compare →
- 3.6Compare →
Distance is proximity only; it is not attendance eligibility.
Charter · enrollment unverified: Potential charter option; enrollment requirements have not been verified.
Enrollment path unverified: Potential public school; its attendance or application path has not been classified.
The record
What is on file, and where each number came from.The public record
What's said publicly about River Montessori Elementary Charter
Synthesized from public, attributable sources. Updated May 2026.Reviewed for accuracy.
Sources (1)
Questions families ask
What grades does River Montessori Elementary Charter serve?
River Montessori Elementary Charter serves students in grades Kindergarten through 6th.
How many students attend River Montessori Elementary Charter?
River Montessori Elementary Charter has an enrollment of approximately 133 students.
What is the student-teacher ratio at River Montessori Elementary Charter?
The student-teacher ratio at River Montessori Elementary Charter is 22.2:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does River Montessori Elementary Charter rank in CA?
River Montessori Elementary Charter ranks #4,009 of 9,557 schools in CA.
What is River Montessori Elementary Charter's MySchoolScout rating?
River Montessori Elementary Charter has a current MySchoolScout rating of 6.7 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at River Montessori Elementary Charter?
Based on loaded state assessment records, River Montessori Elementary Charter has 45% math proficiency (multi-year average, 2018-2025) and 60% reading/ELA proficiency (multi-year average, 2018-2025).
Is River Montessori Elementary Charter a charter school?
Yes, River Montessori Elementary Charter is a charter school. Charter schools are publicly funded but independently operated, often with more flexibility in curriculum and teaching methods.
Is River Montessori Elementary Charter a Title I school?
No, River Montessori Elementary Charter is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for River Montessori Elementary Charter?
25.6% of students at River Montessori Elementary Charter qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
School facts
- Grades
- Kindergarten – 6th
- Enrollment
- 133
- Student-teacher ratio
- 22.2:1
- Teachers (FTE)
- 6
- Type
- Regular
- Title I
- No
- Setting
- Small City
- County
- Sonoma County
- Phone
- (707) 778-6414
- Rank in district
- #1 of 1
- Schools in district
- 1
- District spending per student
- $16,467
- NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- Not available
- The source release did not match this district identifier.
- Area population (ZIP 94954)
- 38,000
- Area average commute
- 31 min
- Area median age
- 44.8
NCES Common Core of Data (CCD) (SY 2023–24).
Sources and official links
Keep exploring
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Data from NCES Common Core of Data, California Dept. of Education, and U.S. Census ACS for the 2023–24 school year. Rankings computed by MySchoolScout. See all data sources.