Enrollment
392
New Jersey · 2024-25 NCES data
Elementary school (grades K-5) · Short Hills, NJ
Hartshorn School
Federal NCES profile for Hartshorn School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 69/100.
2024-25 NCES dataElementary school (grades K-5)NCES 341020002156
👥 S:T ratio 54
🌟 Gifted program 70
📋 Attendance 84
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Hartshorn School earns 69/100 on the Resource Investment Index, with class sizes near the New Jersey median.
- #2 of 3
- elementary schools in Short Hills · Resource Index
- 69
- Resource Index · Higher
- 11.5:1
- students per teacher
- 1.1%
- free-lunch eligible
Hartshorn School has class sizes near the New Jersey median. Computed live against every New Jersey school reporting to NCES.
By Resource Investment Index, Hartshorn School ranks #2 of 3 elementary schools in Short Hills, NJ.
School address
District: Millburn Township School District · New Jersey
NCES ID 341020002156 Verify on NCES CCD record →
Teachers (FTE)
34.0
Federal CCD staff survey
Students per teacher
11.5:1
vs 11.8:1 New Jersey avg
-3% vs state
Free-lunch eligible
1.1%
vs 29.6% New Jersey avg
-96% vs state
Student-teacher ratio in context
How Hartshorn School compares with New Jersey and U.S. medians
What stands out at Hartshorn School
Hartshorn School is a lower-poverty, mid-sized elementary school in Short Hills, New Jersey, enrolling 392 students.
At 11.5:1, its student-teacher ratio sits close to the New Jersey median, within a few percentage points of the 11.8:1 state norm, neither notably crowded nor notably small.
Comparatively few students face economic hardship here, 1.1% free-meal eligibility runs 96% below the New Jersey average.
With 392 students, its enrollment sits close to the New Jersey median campus size.
Its Resource Investment Index outscores 95% of the 2,501 New Jersey schools with a score on record, a top-tier result on this measure.
Among 569 similarly sized, similarly resourced-need New Jersey schools statewide, it ranks #31, a top-tier result once campus size and economic need are matched.
Its student body is led by Asian (48%) and White (38%) (diversity index 62/100).
Attendance holds up well here: only 6.6% of students were chronically absent, below the typical post-pandemic national figure.
Millburn Township School District also operates Millburn High School (1,380 students) and Millburn Middle School (1,106 students) alongside Hartshorn School.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Hartshorn School compares
Hartshorn School on the metrics families compare, against New Jersey and U.S. means.
| Metric | This school | vs New Jersey | New Jersey avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 11.5:1 | ▼ 3% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 1.1% | ▼ 96% | 29.6% | 51.7% |
| Enrollment | 392 | top 56% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
11.5:1
Leaner classes than 79% of US schools, among the more generously staffed nationally.
392
Bigger than 46% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
1.1%
free-lunch eligible
- 96% below the New Jersey average of 29.6%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
11.5:1
students per teacher
- 3% below state mean
Top 53% in New Jersey - lower ratio than 47% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
6.6%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$23,688
per pupil, district-wide
- below New Jersey avg of $24,984
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
Asian 48.0%
White 38.0%
Two or More 8.4%
Hispanic or Latino 3.3%
African American 2.0%
American Indian / Alaska Native 0.3%
Largest group: Asian at 48.0% of enrollment.
Student-body diversity index 61.7/100
Simpson diversity index - at 61.7, Hartshorn School is more mixed than the New Jersey school average of 51.2.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Millburn Township School District, which includes Hartshorn School.
$23,688
Per student
-5%
vs New Jersey
Avg $24,984
+43%
vs U.S.
Avg $16,593
Revenue mix
Local 73.9%
State 24.3%
Federal 1.8%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Hartshorn School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Millburn High School | Larger | Similar economic need | Similar S:T ratio |
| Millburn Middle School | Larger | Similar economic need | Similar S:T ratio |
| Washington School | Similar size | Similar economic need | Similar S:T ratio |
| Deerfield School | Similar size | No free-lunch data | Similar S:T ratio |
| Wyoming School | Similar size | Similar economic need | Higher S:T ratio |
Comparisons are relative to Hartshorn School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,380
- Students per teacher
- 10.7:1
- Resource Index
- 64/100
- Enrollment
- 1,106
- Students per teacher
- 10.6:1
- Resource Index
- 59/100
- Enrollment
- 363
- Students per teacher
- 11.3:1
- Resource Index
- 59/100
- Enrollment
- 358
- Students per teacher
- 11.9:1
- Resource Index
- 56/100
- Enrollment
- 346
- Students per teacher
- 13.3:1
- Resource Index
- 69/100
Similar elementary schools statewide
Matched by enrollment size and by staffing ratio across all of New Jersey, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~392 students)
Next steps
Verify locally before acting on Hartshorn School's federal record.
- Compare Hartshorn School against another school. Compare schools
- Millburn Township School District's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Hartshorn School
How many students attend Hartshorn School?
Hartshorn School has 392 students enrolled. It is an elementary school in Short Hills, NJ.
What is the student-teacher ratio at Hartshorn School?
The student-teacher ratio at Hartshorn School is 11.5:1, which is 3% lower than the New Jersey average of 11.8:1 and 27% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Hartshorn School?
1.1% of students at Hartshorn School are eligible for free lunch, compared to the New Jersey average of 29.6%.
What is the racial and ethnic makeup of Hartshorn School?
The largest demographic group at Hartshorn School is Asian at 48.0% of enrollment, in Short Hills, NJ. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 61.7/100.
What is the Resource Investment Index for Hartshorn School?
Hartshorn School has a Resource Investment Index of 69/100 (higher reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Hartshorn School rank among elementary schools in Short Hills?
By Resource Investment Index, Hartshorn School ranks #2 of 3 elementary schools in Short Hills, NJ. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Short Hills on the city page.
Is Hartshorn School a good school?
Hartshorn School earns 69/100 on the Resource Investment Index, with class sizes near the New Jersey median. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Millburn Township School District?
Besides Hartshorn School, Millburn Township School District also operates Millburn High School (1,380 students), Millburn Middle School (1,106 students), and Washington School (363 students). See the Millburn Township School District district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.