Hartshorn School
Short Hills, NJ · Elementary School
Hartshorn School is a elementary school in Short Hills, NJ with 437 students enrolled and a 75% proficiency rate. Part of Millburn Township School District. NCES data from the U.S. Department of Education.
Hartshorn School is a elementary school in Short Hills, NJ with 437 students enrolled. It is part of the Millburn Township School District. That headcount is below the 594-student average for schools in the district.
On the latest EDFacts assessments, 75% of students reached grade-level proficiency in combined math and reading — a rate near the top of the national distribution. That tracks the 72% district average closely, within a few points either way. Against the 56% New Jersey statewide average, the school sits 18 points higher.
Over the last three reported years the district proficiency rate this school inherits has risen by about 13 points.
The student-teacher ratio is 12.9 to 1, below the U.S. average of roughly 16 to 1, which generally allows more adult attention per student. A relatively low 1% of students qualify for free or reduced-price lunch.
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About This School
Hartshorn School is a elementary school located in Short Hills, New Jersey. The school serves 437 students. The student-to-teacher ratio is 12.9:1.
According to EDFacts assessment data, 75% of students meet grade-level proficiency standards in combined math and reading.
1% of students qualify for free or reduced-price lunch.
Hartshorn School is part of the Millburn Township School District in New Jersey.
How This School Compares
Hartshorn School has 437 students enrolled, making it smaller than the average school in Millburn Township School District (594 students). Its 75% proficiency rate is 2 percentage points above the district average of 72%. Compared to the New Jersey state average of 56%, the school performs 18 points higher. With a 12.9:1 student-teacher ratio, it offers smaller class sizes than the national average.
Other Schools in Millburn Township School District
Frequently Asked Questions
Hartshorn School has 437 students enrolled. The student-to-teacher ratio is 12.9:1.
According to EDFacts data, 75% of students at Hartshorn School meet grade-level proficiency standards in combined math and reading assessments.
Hartshorn School is part of the Millburn Township School District in Short Hills, New Jersey. 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.
Source: NCES Common Core of Data, 2026.