Needs Improvement
#1736 of 1,815 schools in CO
Ross Montessori School
Elementary School · State Charter School Institute · Carbondale, CO
A State Charter School Institute charter elementary school where students score 25 points below what's typical for similar communities.
109 LEWIES LANE, Carbondale, CO 81623
- Math 28% vs CO 38% (2025)
- Reading 40% vs CO 45% (2025)
- 21.3:1 student-teacher ratio
Academics
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
Students at Ross Montessori School score 38% proficient, which is below what's typical for similar communities (expected: 62%).
2025 CMAS proficiency
Most recent published year. School vs. CO average.
Trend
→ SteadyProficiency is down 61 points across the 17-year record (2009–2025) and has held near 34% recently.
Show all 15 years
Multi-year averages used by the rating model: math 40% (multi-year average, 2009-2025) · reading/ELA 57% (multi-year average, 2009-2025)
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Based on 37 test records from CO state assessments and EdFacts (NCES).
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateThe neighborhood
Where Ross Montessori School sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries.
Getting around & local context
- Walk 82Very Walkable
- Bike 93Biker’s Paradise
- City Safety: Elevated780/100K
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FBI Uniform Crime Reporting · 2024 · city context (Carbondale), not school-level safety or attendance eligibility. Source details
Source period: 2024. Freshness not available.
Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)
Median income
$98,549
Median home value
$835,000
Median rent
$2,094/mo
College educated
50.4%
Homeownership
68.1%
Poverty rate
11.3%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 81623; this is area context, not an attendance boundary.
Programs & students
Programs & Offerings
Compare nearby
Nearby same-level schools
4 from a 5-mile search; district fallback available
| School | Score | Grades | Distance | Enrollment | Compare |
|---|---|---|---|---|---|
| Crystal River Elementary SchoolEnrollment path unverified | 5.0 | PK–4 | 0.4 mi | 447 | Compare → |
| Carbondale Community Charter SchoolCharter · enrollment unverified | 4.8 | K–8 | 1.4 mi | 140 | Compare → |
| Waldorf School on the Roaring ForkPrivate · tuition | 6.6private | PK–8 | 3.9 mi | 159 | Compare → |
| Axis International AcademyCharter · enrollment unverified | 8.7 | PK–6 | Not available | 261 | Compare → |
Distance is proximity only; it is not attendance eligibility.
Enrollment path unverified: Potential public school; its attendance or application path has not been classified.
Charter · enrollment unverified: Potential charter option; enrollment requirements have not been verified.
Private · tuition: Potential private option; tuition and admission requirements have not been verified.
Public and private scores come from different models and are shown side by side, not blended into one ranking.
State Charter School Institute
- Schools in district
- 44
- Rank in district
- #36 of 39
- District spending per student
- $12,197NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- The source release did not match this district identifier.
Ross Montessori School is listed in State Charter School Institute; a district label does not verify attendance for an address.
About Ross Montessori School
Ross Montessori School is a public elementary school in Carbondale, CO, part of State Charter School Institute, serving approximately 213 students in grades Kindergarten-8th with a 21.3:1 student-teacher ratio. It holds a MySchoolScout rating of 3.3 out of 10 and ranks #1,736 of 1,815 schools in CO. State assessment records show 40% math proficiency (multi-year average, 2009-2025) and 57% reading/ELA proficiency (multi-year average, 2009-2025).
Frequently asked questions
Common questions about Ross Montessori School
What grades does Ross Montessori School serve?
Ross Montessori School serves students in grades Kindergarten through 8th.
How many students attend Ross Montessori School?
Ross Montessori School has an enrollment of approximately 213 students.
What is the student-teacher ratio at Ross Montessori School?
The student-teacher ratio at Ross Montessori School is 21.3:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Ross Montessori School rank in CO?
Ross Montessori School ranks #1,736 of 1,815 schools in CO.
What is Ross Montessori School's MySchoolScout rating?
Ross Montessori School has a current MySchoolScout rating of 3.3 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 Ross Montessori School?
Based on loaded state assessment records, Ross Montessori School has 40% math proficiency (multi-year average, 2009-2025) and 57% reading/ELA proficiency (multi-year average, 2009-2025).
Is Ross Montessori School a charter school?
Yes, Ross Montessori School is a charter school. Charter schools are publicly funded but independently operated, often with more flexibility in curriculum and teaching methods.
Is Ross Montessori School a Title I school?
No, Ross Montessori School is not currently a Title I school.
School factsNCES Common Core of Data (CCD) (SY 2023–24)
- Grades
- Kindergarten – 8th
- Enrollment
- 213
- Student-Teacher Ratio
- 21.3:1
- Teachers (FTE)
- 10
- Type
- regular
- Setting
- Remote Town
- County
- Garfield County
- Chronic Absenteeism (SY 2022-23)
- 57.3%
- Phone
- (970) 963-7199
- Area population (ZIP 81623)
- 16,349
- Area average commute
- 28.8 min
- Area median age
- 40.6
About this school's data
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.
- 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 CMAS · 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 from source records rather than read directly from one field.
- Reading/ELA proficiency
- State department of education · 2025 CMAS · 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 from source records rather than read directly from one field.
- Student progress (growth)
- NCES EdFacts · 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 81623; this does not measure the attendance area.
- Programs (AP/IB, athletics, gifted)
- CRDC via Urban Institute · SY 2021–22 · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: SY 2021–22. A newer release may be available.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2025; directory SY 2023–24
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