Excellent
#118 of 2,466 schools in NJ
Top 5% in state
Hartshorn School
Elementary School · Millburn Township School District · Short Hills, NJ
A Millburn Township School District elementary school where students score 18 points above what's typical for similar communities.
400 HARTSHORN DRIVE, Short Hills, NJ 07078
- Math 91% vs NJ 48% (2025)
- Reading 81% vs NJ 49% (2025)
- 12.6:1 student-teacher ratio
Academics
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
Students at Hartshorn School score 86% proficient, which is above what's typical for similar communities (expected: 68%).
2025 NJSLA proficiency
Most recent published year. School vs. NJ average.
Trend
↑ RecoveringProficiency declined earlier in the 17-year record (2009–2025), then recovered 12 points since 2021, reaching 86% in 2025.
Show all 16 years
Multi-year averages used by the rating model: math 88% (multi-year average, 2009-2025) · reading/ELA 84% (multi-year average, 2009-2025)
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Based on 36 test records from NJ state assessments and EdFacts (NCES).
Equity & diversity
Shown separately, not included in the overall scoreFree/reduced lunch
0.7%
Students qualifying for federal meal assistance
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateThe neighborhood
Where Hartshorn School sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the New York map →
Getting around & local context
- Walk 14Car-Dependent
- Bike 25Somewhat Bikeable
- County Safety: Low18/100K
Powered by
FBI Uniform Crime Reporting · 2024 · county context, not school-level safety or attendance eligibility. Source details
Source period: 2024. A newer release may be available.
Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)
Median income
$250,001
Median home value
$1,627,300
Median rent
$3,363/mo
College educated
90.1%
Homeownership
88.4%
Poverty rate
3.3%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 07078; this is area context, not an attendance boundary.
Programs & students
Programs & Offerings
Compare nearby
Nearby same-level schools
4 from a 5-mile search; district fallback available
| School | Score | Grades | Distance | Enrollment | Compare |
|---|---|---|---|---|---|
| Glenwood SchoolEnrollment path unverified | 7.5 | K–4 | 0.7 mi | 349 | Compare → |
| The Montessori Childrens AcademyPrivate · tuition | 7.5private | PK–5 | 1.0 mi | 35 | Compare → |
| Lincoln-hubbard Elementary SchoolEnrollment path unverified | 8.7 | 1–5 | 1.3 mi | 360 | Compare → |
| Kent Place SchoolPrivate · tuition | 6.9private | PK–12 | 1.5 mi | 636 | Compare → |
Distance is proximity only; it is not attendance eligibility.
Enrollment path unverified: Potential public school; its attendance or application path has not been classified.
Private · tuition: Potential private option; tuition and admission requirements have not been verified.
Public and private scores come from different models and are shown side by side, not blended into one ranking.
Millburn Township School District
- Schools in district
- 8
- Rank in district
- #2 of 8
- District spending per student
- $25,654NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 2.1%Census SAIPE · 2024
Hartshorn School is listed in Millburn Township School District; a district label does not verify attendance for an address.
About Hartshorn School
Hartshorn School is a public elementary school in Short Hills, NJ, part of Millburn Township School District, serving approximately 428 students in grades Kindergarten-4th with a 12.6:1 student-teacher ratio. It holds a MySchoolScout rating of 8.7 out of 10 and ranks #118 of 2,466 schools in NJ. State assessment records show 88% math proficiency (multi-year average, 2009-2025) and 84% reading/ELA proficiency (multi-year average, 2009-2025).
Frequently asked questions
Common questions about Hartshorn School
What grades does Hartshorn School serve?
Hartshorn School serves students in grades Kindergarten through 4th.
How many students attend Hartshorn School?
Hartshorn School has an enrollment of approximately 428 students.
What is the student-teacher ratio at Hartshorn School?
The student-teacher ratio at Hartshorn School is 12.6:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Hartshorn School rank in NJ?
Hartshorn School ranks #118 of 2,466 schools in NJ.
What is Hartshorn School's MySchoolScout rating?
Hartshorn School has a current MySchoolScout rating of 8.7 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Hartshorn School?
Based on loaded state assessment records, Hartshorn School has 88% math proficiency (multi-year average, 2009-2025) and 84% reading/ELA proficiency (multi-year average, 2009-2025).
Is Hartshorn School a charter school?
No, Hartshorn School is not a charter school. It is a traditional public school operated by the local school district.
Is Hartshorn School a Title I school?
No, Hartshorn School is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Hartshorn School?
0.7% of students at Hartshorn School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
School factsNCES Common Core of Data (CCD) (SY 2023–24)
- Grades
- Kindergarten – 4th
- Enrollment
- 428
- Student-Teacher Ratio
- 12.6:1
- Teachers (FTE)
- 34
- Type
- regular
- Setting
- Large Suburb
- County
- Essex County
- Chronic Absenteeism (SY 2022-23)
- 11.9%
- Phone
- (973) 379-7550
- Area population (ZIP 07078)
- 14,183
- Area average commute
- 44.9 min
- Area median age
- 41
Official sources & links
About this school's data
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.
- School directory (enrollment, grades, staff, contact)
- NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
- Source period: SY 2023–24. A newer release may be available.
- MySchoolScout rating and rank
- MySchoolScout ranking model · Low confidence
- Vintage not available. Do not use this measure alone.
- Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
- Math proficiency
- State department of education · 2025 NJSLA · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2025 NJSLA. A newer release may be available.
- Derived from source records rather than read directly from one field.
- Reading/ELA proficiency
- State department of education · 2025 NJSLA · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2025 NJSLA. A newer release may be available.
- Derived from source records rather than read directly from one field.
- Student progress (growth)
- State assessments · Mixed source periods · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
- Neighborhood (income, housing, education)
- U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
- Older source: ACS 2019–2023 5-year estimates. Use as historical context.
- Reported for the ZCTA for ZIP 07078; this does not measure the attendance area.
- Programs (AP/IB, athletics, gifted)
- CRDC via Urban Institute · SY 2021–22 · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: SY 2021–22. A newer release may be available.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2025; directory SY 2023–24
Related reading
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