C
Below Average
54/100

Ross Montessori School

📚 K – 08 🏫 School Charter School
📍 109 LEWIES LANE, Carbondale, CO 81623
Overall
C
54/100 · the blend of everything below
Achievement
C
Reading 42% · Math 22% proficient · 36th percentile in Colorado
Resources
C+
Class size, funding, school size and type

Each score is graded separately against Colorado schools. A school can be strong at moving students forward (growth) without having the highest test scores, or the reverse. How we score schools

54
Repit Score
out of 100
213
Students
enrolled
20.8:1
Student:Teacher
ratio
$13K
Per Student
spending

What Goes Into This Rating

FactorWeightScoreBasis
📚 Academics (reading & math)75%36/100reading 41st percentile, math 30th percentile among Colorado middle schools (2018–19 state tests)
🏫 Resources (class size, funding, size, type)25%64/100Inputs from NCES school and district data

Students served: 38% students eligible for free or reduced-price lunch. Compared with Colorado schools serving a similar share of low-income students, this school’s reading and math results are −22 points worse than expected. (Context only; not part of the score.)

The overall Repit Score ranks this blend against every rated school in Colorado. Schools are compared within their state because each state sets its own tests and proficiency bar. How we rate schools

Test Scores & Graduation

📖 Reading proficiency42% (−4 pts vs. state avg 46%)
Students scoring proficient on the state test, 2018–19
➗ Math proficiency22% (−11 pts vs. state avg 33%)
Students scoring proficient on the state test, 2018–19

Source: U.S. Department of Education EDFacts via the Urban Institute Education Data Portal. Federal reporting rounds small schools to ranges; we show the midpoint. Proficiency standards differ by state, so compare schools within the same state.

How Student Groups Do Here

Share of each group of students scoring proficient on the Colorado state test (2018–19), compared with the same group of students across the state. Differences between groups are shown as reported; they reflect many factors inside and outside school.

StudentsReadingMathvs. same group statewideRank in state for this group
White52%27%reading -5 pts, math -18 pts30th percentile (list)
Hispanic15%5%reading -15 pts, math -13 pts3rd percentile (list)
Low-income30%10%reading +1 pts, math -7 pts35th percentile (list)

Source: U.S. Department of Education EDFacts via the Urban Institute. Groups with fewer than 20 tested students are not shown. Results are achievement (proficiency), not growth; growth by group is not published for individual schools.

School Information

Address 109 LEWIES LANE
City Carbondale
ZIP Code 81623
District 0800020
NCES School ID 080002001913
Data Year 2024-25

Community Context for 81623

Understanding the community around Ross Montessori School helps evaluate the school environment and neighborhood.

💰 Income & Economy

Median Household Income $98,549
Per Capita Income $57,635
Poverty Rate 6.4%
Households Earning $100K+ 49.1%

🎓 Education Level

Bachelor's Degree or Higher 50.4%
High School or Higher 90.2%

🏠 Housing

Median Home Value $733,900
Median Rent $2,075
Owner-Occupied 68.0%
Renter-Occupied 32.0%
View full data for ZIP 81623 →

Thinking about moving into this school’s area? See what homes and rents actually cost in ZIP 81623 — values, rent, and how it compares to nearby ZIPs. Free, no signup. See 81623 housing costs →

Student Demographics

Enrollment and demographic breakdown for Ross Montessori School.

👫 Gender Distribution

Male 47.9%
Female 52.1%

🌎 Race & Ethnicity

White 59.2%
Hispanic/Latino 35.2%
Two or More Races 2.8%
Black 0.9%
Asian 1.4%
Pacific Islander 0.5%

📋 Enrollment Summary

Total Enrollment 213
Teachers (FTE) 10.3
Student:Teacher Ratio 20.8:1

Frequently Asked Questions

What is the Repit School Score for Ross Montessori School?
Ross Montessori School has a Repit School Score of 54 out of 100, earning a grade of C. The score is based mainly on reading and math proficiency compared with other schools in the state, with class size and funding counting for a smaller share.
How many students attend Ross Montessori School?
Ross Montessori School has 213 students enrolled for the 2024-25 school year. The student-to-teacher ratio is 20.8:1.
What grades does Ross Montessori School serve?
Ross Montessori School serves grades K – 08 and is classified as a School. This is a charter school.
How much funding does Ross Montessori School receive per student?
Ross Montessori School receives $12,972 in per-pupil spending from its district. This is around the national average.
🏠 Rental Market Around Ross Montessori School in 81623 ▼
Avg Home Value
$1,373,354
Avg Monthly Rent
$3,640
1-Year Change
+4.8%
% Renters
32.0%

Other Schools in 81623

View all schools and real estate data for 81623 →

About Repit School Scores

Parents choosing a school deserve to see what it actually delivers. Since October 2026 the Repit School Score is built mainly on results:

  • Academics (largest share) — the share of students scoring proficient in reading and math on the state test, ranked against schools of the same level in the same state.
  • Graduation (high schools) — the four-year adjusted cohort graduation rate. Only regular diplomas count; GEDs and certificates of attendance do not.
  • Resources (smaller share) — class size, per-pupil funding, school size and type.

Scores compare schools within their own state, because every state writes its own tests and sets its own proficiency bar. Full methodology

Data sources: NCES CCD 2024-25, U.S. Dept. of Education EDFacts (test results & graduation) | Last updated: October 2026