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.
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.
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.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. public schools and districts with similar size, similar exposure, or similar geography — not the national-level summary alone.
Source: NCES Common Core of Data, 2026.