Mountain Middle School
🇺🇸 Official data · 2025Durango, Colorado 81301 · State Charter School Institute
#59 of 262 middle schools in Colorado
#5105 of 15,369 nationally
About Mountain Middle School
Mountain Middle School is a charter middle located in Durango, in the State Charter School Institute school district of Colorado, United States. It caters for Grades 4–8. In 2025 it enrolled 302 students. Publicly funded charter schools operating under a performance contract; free to attend.
Its Success Index (US) is 61.7 out of 100, placing it in the top 50% of middle schools in United States and 59th of 262 ranked middle schools in Colorado. Its strongest component is reading proficiency (89th percentile), and its weakest is students per teacher (19th percentile).
Other published figures: enrollment 302.
There are 12 schools in Durango; Mountain Middle School ranks 3rd of 12 scored schools there.
Success Index (US) breakdown
Each component is a percentile against middle schools across United States.
- Math proficiency (30%)46%
- Reading proficiency (30%)73%
- Community advantage (fewer free/reduced-price lunch) (25%)–
- Students per teacher (15%)18.9
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Mountain Middle School by the official sources.
- Enrollment
- 302
- Students enrolled in the latest NCES directory year.
- Students per teacher
- 18.9
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 73%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 46%
- Share of tested students proficient or above (all students, all grades).
Free academic assessment
Is your child on grade level in reading and math?
Success Tutoring offers personalised English and math tutoring from Kindergarten to Grade 12. Start with a free online assessment and a clear plan for the year ahead.
- Personalised learning plan mapped to the Australian Curriculum
- English & Maths from Kindergarten to Year 12
- Flexible memberships, no lock-in contracts
- Centres across NSW, VIC, QLD, WA, SA and ACT
Schools near Mountain Middle School
Closest schools by straight-line distance, with their Success Index (US).
Miller Middle School
Durango · Public middle · Grades 6–8
360 students · 685 m away
Riverview Elementary School
Durango · Public elementary · Grades PK–5
374 students · 889 m away
Needham Elementary School
Durango · Public elementary · Grades PK–5
367 students · 1.1 km away
Durango High School
Durango · Public high · Grades 9–12
1,352 students · 1.1 km away
Animas High School
Durango · Charter high · Grades 9–12
249 students · 3.0 km away
Park Elementary School
Durango · Public elementary · Grades PK–5
452 students · 3.5 km away
The Juniper School
Durango · Charter elementary · Grades K–8
171 students · 6.4 km away
Escalante Middle School
Durango · Public middle · Grades 6–8
461 students · 8.1 km away
Florida Mesa Elementary School
Durango · Public elementary · Grades PK–5
293 students · 11 km away
Animas Valley Elementary School
Durango · Public elementary · Grades PK–5
185 students · 12 km away
Similar schools
Charter middle schools in Colorado with a comparable Enrollment.
KIPP Sunshine Peak Academy
Denver · Charter middle · Grades 5–8
301 students
Rocky Mountain Prep Noel
Denver · Charter middle · Grades 6–8
287 students
DSST: Cole Middle School
Denver · Charter middle · Grades 6–8
282 students
The Connect Charter School
Pueblo · Charter middle · Grades 6–8
252 students
The Vanguard School (Middle)
Colorado Springs · Charter middle · Grades 7–8
243 students
Summit Middle Charter School
Boulder · Charter middle · Grades 6–8
366 students
Frequently asked questions
Is Mountain Middle School a good school?
Mountain Middle School has a Success Index (US) of 61.7 out of 100 (Top 50% of middle schools in United States) and ranks #59 of 262 in Colorado. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Mountain Middle School rank in Colorado?
Mountain Middle School ranks #59 of 262 middle schools in Colorado and #5105 of 15,369 nationally on the Success Index (US) (2025 data).
How many students attend Mountain Middle School?
Mountain Middle School had 302 students in 2025.
Is Mountain Middle School a elementary school or a high school?
Mountain Middle School is classified as a middle covering Grades 4–8. It is a charter school.
What other schools are near Mountain Middle School?
There are 10 schools within 15 km of Mountain Middle School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.