Average
#1335 of 1,815 schools in CO
Marble Charter School
School · Gunnison Watershed School District Re1j · Marble, CO
A Gunnison Watershed School District Re1j charter school where students score 10 points below what's typical for similar communities.
412 WEST MAIN STREET, Marble, CO 81623
- Math 37% vs CO 36% (2025)
- Reading 68% vs CO 45% (2025)
- 15:1 student-teacher ratio
Academics
Full Profile · 4/4 metricsView breakdown
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Students at Marble Charter School score 53% proficient, which is below what's typical for similar communities (expected: 62%).
2025 CMAS proficiency
Most recent published year. School vs. CO average.
Trend
↑ RecoveringProficiency declined earlier in the 17-year record (2009–2025), then recovered 25 points since 2020, reaching 53% in 2025.
Show all 15 years
Multi-year averages used by the rating model: math 52% (multi-year average, 2009-2025) · reading/ELA 63% (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 29 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 Marble Charter 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 18Car-Dependent
- Bike 13Somewhat Bikeable
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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.
Compare nearby
Nearby same-level schools
0 in Gunnison Watershed School District Re1J
No verified same-level alternatives
The available nearby set has no same-level school with a verified grade span.
Gunnison Watershed School District Re1j
- Schools in district
- 7
- Rank in district
- #6 of 7
- District spending per student
- $14,480NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 7.0%Census SAIPE · 2024
Marble Charter School is listed in Gunnison Watershed School District Re1J; a district label does not verify attendance for an address.
About Marble Charter School
Marble Charter School is a public school in Marble, CO, part of Gunnison Watershed School District Re1j, serving approximately 45 students in grades Kindergarten-10th with a 15:1 student-teacher ratio. It holds a MySchoolScout rating of 5.0 out of 10 and ranks #1,335 of 1,815 schools in CO. State assessment records show 52% math proficiency (multi-year average, 2009-2025) and 63% reading/ELA proficiency (multi-year average, 2009-2025).
Frequently asked questions
Common questions about Marble Charter School
What grades does Marble Charter School serve?
Marble Charter School serves students in grades Kindergarten through 10th.
How many students attend Marble Charter School?
Marble Charter School has an enrollment of approximately 45 students.
What is the student-teacher ratio at Marble Charter School?
The student-teacher ratio at Marble Charter School is 15:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Marble Charter School rank in CO?
Marble Charter School ranks #1,335 of 1,815 schools in CO.
What is Marble Charter School's MySchoolScout rating?
Marble Charter School has a current MySchoolScout rating of 5.0 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 Marble Charter School?
Based on loaded state assessment records, Marble Charter School has 52% math proficiency (multi-year average, 2009-2025) and 63% reading/ELA proficiency (multi-year average, 2009-2025).
Is Marble Charter School a charter school?
Yes, Marble Charter School is a charter school. Charter schools are publicly funded but independently operated, often with more flexibility in curriculum and teaching methods.
Is Marble Charter School a Title I school?
No, Marble Charter School is not currently a Title I school.
School factsNCES Common Core of Data (CCD) (SY 2023–24)
- Grades
- Kindergarten – 10th
- Enrollment
- 45
- Student-Teacher Ratio
- 15:1
- Teachers (FTE)
- 3
- Type
- regular
- Setting
- Remote Rural
- County
- Gunnison County
- Chronic Absenteeism (SY 2022-23)
- 66.7%
- Phone
- (970) 963-9550
- 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.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2025; directory SY 2023–24
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