The top reported proficiency rate is 74% in English language arts. The lowest is 52% in Science.
Original Research by School Decision on Mountain Middle School
Mountain Middle School is a charter school in Durango serving fourth through eighth grade. It operates under the State Charter School Institute, the state-level authorizer for Colorado charter schools, rather than under Durango School District 9-R. For a family considering this school, the most important fact is its academic performance, which sits well above typical results in La Plata County.
On state assessments, the school posts a proficiency rate in English language arts that is strong, and its math proficiency rate is also solid. In science, the fifth-grade results are decent, while the eighth-grade science figure is lower. A parent should note that the eighth-grade science cohort is small, but the drop from the fifth-grade science result is noticeable enough to ask the school how science instruction progresses in the upper grades. Overall, when combining tested subjects, the school’s proficiency index places it in the top quarter of districts in La Plata County. That is a meaningful distinction, and it gives a clear signal that this school’s academic outcomes are a headline strength.
The student body is predominantly white, with a modest share of Hispanic students and very small numbers from other racial and ethnic groups. Data on the share of students eligible for free or reduced-price lunch was not reported, so the income profile of the school is not directly visible from state records. Special education and English learner counts also were not available. Given that the school is a charter, any parent requiring these services should confirm directly with the school how they are staffed and delivered.
Mountain Middle School is a regular school in its type, meaning it is not an alternative or special-population campus. Its grade band covers the full middle school years plus fourth grade. Enrollment across grades four through eight is fairly even, with each grade carrying the same load. The school has no reported graduation rate because it does not serve high school grades, so that is expected rather than a gap.
Durango itself functions as the economic and cultural hub of southwestern Colorado. The city combines a historic downtown, a major railroad tourism draw, a college presence through Fort Lewis College, and outdoor recreation in the surrounding mountains and national forest. Housing values in the area are high relative to the state and national benchmarks, and rents follow a similar pattern. A family moving here for a job in health care, education, government, or tourism should expect a competitive housing market. The school’s location on West 31st Street places it within the town, not far from the downtown core.
The district, the State Charter School Institute, oversees multiple charter schools across Colorado. Searches for recent parent-relevant changes at the district level did not turn up specific curriculum updates, property-tax referenda, or policy shifts. The school itself appears to be stable, with no reported leadership turnover or boundary changes in the available data.
For a parent looking for a middle school with proven academic results in a mountain-town setting, Mountain Middle School brings a clear track record of strong proficiency. The primary open questions are about the support services available, given the missing demographic and special-program data, and about the science pathway through the upper grades. A visit and a conversation with the front office would resolve both.
See more original research from School Decision →