Mt Desert Island High School
Bar Harbor, ME · High School · Grades 9-12
Mt Desert Island High School is a high school in Bar Harbor, ME with 495 students enrolled and a 74% proficiency rate. Part of Mt Desert CSD. NCES data from the U.S. Department of Education.
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About This School
Mt Desert Island High School is a high school located in Bar Harbor, Maine. The school serves 495 students in grades 9-12. The student-to-teacher ratio is 9.3:1.
According to EDFacts assessment data, 74% of students meet grade-level proficiency standards in combined math and reading. The school reports a 87% graduation rate.
11% of students qualify for free or reduced-price lunch.
Mt Desert Island High School is part of the Mt Desert CSD in Maine.
How This School Compares
Mt Desert Island High School has 495 students enrolled, making it smaller than the average school in Mt Desert CSD (495 students). Its 74% proficiency rate is 0 percentage points above the district average of 74%. Compared to the Maine state average of 54%, the school performs 20 points higher. With a 9.3:1 student-teacher ratio, it offers smaller class sizes than the national average.
Frequently Asked Questions
Mt Desert Island High School has 495 students enrolled in grades 9-12. The student-to-teacher ratio is 9.3:1.
According to EDFacts data, 74% of students at Mt Desert Island High School meet grade-level proficiency standards in combined math and reading assessments.
Mt Desert Island High School has a 87% graduation rate, measuring the percentage of students who graduate within four years.
Mt Desert Island High School is part of the Mt Desert CSD in Bar Harbor, Maine. You can view all schools in this district on the district page.
All data on this page comes from the National Center for Education Statistics (NCES) Common Core of Data and EDFacts assessment results. These are official federal datasets published by the U.S. Department of Education.
School profiles are built from NCES directory data and EDFacts assessment results. Proficiency rates reflect combined math and reading performance. Graduation rates are reported for high schools with available data.
this entity is one of the data points covered by this site’s U.S. K-12 school outcomes and enrollment dataset. The detail above comes directly from NCES Common Core of Data and EDFacts; the context that follows situates the headline numbers against the broader distribution across U.S. public schools and districts.
Every number on this page links back to NCES Common Core of Data and EDFacts; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for this entity’s peers within U.S. public schools and districts. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.
Source: NCES Common Core of Data, 2026.