Original Research by School Decision on Edith M. Decker Elementary School
Edith M. Decker Elementary School is a regular public school serving prekindergarten through second grade in Mount Arlington, a small suburban borough on the southeast shore of Lake Hopatcong in Morris County. Because the school serves only the earliest grades, the measures that typically inform a family’s academic picture of a school are absent here. There are no state assessment results, because the tested grades begin in third. There is no graduation rate, because the school does not serve high school students. There is no chronic absenteeism metric available for this grade band. A parent looking for test-score data will find nothing to evaluate, and that is a function of the school’s grade span rather than a statement about its performance.
The school is one of two public schools in the Mount Arlington Public School District. Students move from Decker to Mount Arlington Public School for grades three through eight, and then attend Roxbury High School in neighboring Roxbury Township through a sending-receiving relationship. Families considering this school should understand that the elementary experience here is a short one, and the middle and high school years will take place in different buildings, one within the district and one in a separate district altogether.
The student body is small for a public school, and the building serves only a narrow age band. The student population is diverse. Children of white background make up the largest share, followed by a substantial Hispanic presence, a smaller Asian representation, and a modest Black enrollment. A small number of American Indian or Alaska Native students are also enrolled. Just under a sixth of students qualify for free or reduced-price lunch, a share that is low relative to national averages. The school did not report counts for students with disabilities or English learners, so a family seeking information on special education services or language support programs would need to ask the school directly.
Mount Arlington itself is a primarily residential community that was once a summer resort destination. It sits on New Jersey’s largest lake, and the school building is located along the lake’s eastern bank. The borough is compact, with a low population density and a car-oriented layout. Interstate 80 runs through town, and NJ Transit rail service from the Mount Arlington station connects to Newark, Hoboken, and New York Penn Station, making the area a commuter option for families who work in the region. The housing market reflects the broader Morris County pattern of high home values. The area’s median listing price is well above the national median, and the market has been active with a relatively low inventory of homes for sale. Rents are also above the national typical range. The borough saw notable population growth in the decades leading up to 2020, though the most recent estimate suggests the pace has leveled off.
The district itself did not have any recent changes of lasting impact that surfaced in public records, so the picture of the school system is a stable one with no major restructuring or program overhauls to report.
For a parent, Edith M. Decker Elementary School fits a family looking for a small early-grades environment in a suburban, lake-adjacent community with strong commuter access. The lack of test data and outcome measures is inherent to the grade band, not a gap in school quality, but it does mean that a family will need to rely on other sources of information classroom visits, conversations with staff, and feedback from current parents to form a picture of the academic experience. The school feeds into a middle school within the same district and then a high school in a neighboring district, so the full K-12 pathway involves multiple transitions. The community is established, with elevated housing costs and a commute-oriented character, and the school population is more diverse than the borough’s overall demographic profile might suggest.
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