Mabel I Wilson School
Cumberland, ME · Elementary School · Grades -1-3
Mabel I Wilson School is a elementary school in Cumberland, ME with 762 students enrolled and a 62% proficiency rate. Part of Rsu 51/Msad 51. NCES data from the U.S. Department of Education.
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About This School
Mabel I Wilson School is a elementary school located in Cumberland, Maine. The school serves 762 students in grades -1-3. The student-to-teacher ratio is 12.7:1.
According to EDFacts assessment data, 62% of students meet grade-level proficiency standards in combined math and reading.
4% of students qualify for free or reduced-price lunch.
Mabel I Wilson School is part of the Rsu 51/Msad 51 in Maine.
How This School Compares
Mabel I Wilson School has 762 students enrolled, making it larger than the average school in Rsu 51/Msad 51 (538 students). Its 62% proficiency rate is 7 percentage points below the district average of 69%. Compared to the Maine state average of 54%, the school performs 8 points higher. With a 12.7:1 student-teacher ratio, it offers smaller class sizes than the national average.
Frequently Asked Questions
Mabel I Wilson School has 762 students enrolled in grades -1-3. The student-to-teacher ratio is 12.7:1.
According to EDFacts data, 62% of students at Mabel I Wilson School meet grade-level proficiency standards in combined math and reading assessments.
Mabel I Wilson School is part of the Rsu 51/Msad 51 in Cumberland, 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.
The methodology behind every numeric value on this page is publicly documented on the NCES Common Core of Data and EDFacts portal and described in detail on this site’s methodology page. Refresh cadence varies by underlying series; the page surfaces the as-of date for each number so readers can trace any figure back to the source release.
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.