Enrollment
739
New Jersey · 2024-25 NCES data
Elementary school (grades K-5) · Perth Amboy, NJ
Middlesex County Stem Charter School
Federal NCES profile for Middlesex County Stem Charter School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 53/100.
2024-25 NCES dataElementary school (grades K-5)NCES 340079503451Charter school
👥 S:T ratio 0
🌟 Gifted program 70
🎓 Counselors 63
📋 Attendance 79
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Middlesex County Stem Charter School earns 53/100 on the Resource Investment Index, with class sizes larger than 99% of New Jersey schools.
- #2 of 3
- public schools in Perth Amboy · Resource Index
- 53
- Resource Index · Higher
- 25.5:1
- large classes for New Jersey
- 49.1%
- free-lunch eligible
Middlesex County Stem Charter School has class sizes larger than 99% of New Jersey schools. Computed live against every New Jersey school reporting to NCES.
By Resource Investment Index, Middlesex County Stem Charter School ranks #2 of 3 public schools in Perth Amboy, NJ.
School address
District: Middlesex County Stem Charter School · New Jersey
NCES ID 340079503451 Verify on NCES CCD record →
Teachers (FTE)
29.0
Federal CCD staff survey
Students per teacher
25.5:1
vs 11.8:1 New Jersey avg
+116% vs state
Free-lunch eligible
49.1%
vs 29.6% New Jersey avg
+66% vs state
Student-teacher ratio in context
How Middlesex County Stem Charter School compares with New Jersey and U.S. medians
What stands out at Middlesex County Stem Charter School
Middlesex County Stem Charter School is a mid-sized charter elementary school in Perth Amboy, New Jersey, enrolling 739 students.
Class loads run heavy: 25.5:1 is larger than about 99% of New Jersey schools and 116% above the 11.8:1 state mean, so each teacher carries more students than is typical.
Economic need runs somewhat above the state's typical profile, with 49.1% of students eligible for free meals.
Enrollment of 739 puts it in the larger third of New Jersey schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 2,501 scored New Jersey schools.
Against 255 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #65.
Its student body is led by Hispanic or Latino (76%) and African American (15%) (diversity index 40/100).
Counselor coverage is strong, about 185 students per counselor, inside the American School Counselor Association's recommended 250:1.
Attendance holds up well here: only 8.4% of students were chronically absent, below the typical post-pandemic national figure.
The surrounding Middlesex County Stem Charter School spends $15,305 per pupil, 39% below the New Jersey average, a leaner-resourced district than most.
Among Perth Amboy's elementary schools, it stands alongside Rose M. Lopez Elementary School (793 students): Middlesex County Stem Charter School is smaller than that campus by headcount and runs heavier classes (25.5:1 vs 14.7:1).
Middlesex County Stem Charter School is a single-school charter district, so Middlesex County Stem Charter School operates independently rather than alongside district-mates.
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 Middlesex County Stem Charter School compares
Middlesex County Stem Charter 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 | 25.5:1 | ▲ 116% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 49.1% | ▲ 66% | 29.6% | 51.7% |
| Enrollment | 739 | top 19% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
25.5:1
Leaner classes than 4% of US schools, heavier class loads than most.
739
Bigger than 82% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
49.1%
free-lunch eligible
- 66% above the New Jersey average of 29.6%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
25.5:1
students per teacher
- 116% above state mean
Top 99% in New Jersey - lower ratio than 1% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
8.4%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$15,305
per pupil, district-wide
- below New Jersey avg of $24,984
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors4.0 FTE
Per 185 students, the combined health-and-guidance staffing load for this school.
Discipline context
12
in-school suspensions + 3 out-of-school
Suspension rate: 1.6 per 100 students. Combined in-school and out-of-school rate: 2.0 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
Hispanic or Latino 76.0%
African American 15.0%
White 3.8%
Asian 3.5%
Two or More 0.8%
American Indian / Alaska Native 0.7%
Native Hawaiian / Pacific Islander 0.1%
Largest group: Hispanic or Latino at 76.0% of enrollment.
Student-body diversity index 39.7/100
Simpson diversity index - at 39.7, Middlesex County Stem Charter School is less mixed than the New Jersey school average of 51.2.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Middlesex County Stem Charter School, which includes Middlesex County Stem Charter School.
$15,305
Per student
-39%
vs New Jersey
Avg $24,984
-8%
vs U.S.
Avg $16,593
Revenue mix
Local 87.7%
State 1.6%
Federal 10.7%
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.
Similar elementary schools in Perth Amboy
1 comparable elementary schools (grades K-5) serving the same city.
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 (~739 students)
Next steps
Verify locally before acting on Middlesex County Stem Charter School's federal record.
- Compare Middlesex County Stem Charter School against another school. Compare schools
- Middlesex County Stem Charter School'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 Middlesex County Stem Charter School
How many students attend Middlesex County Stem Charter School?
Middlesex County Stem Charter School has 739 students enrolled. It is an elementary school in Perth Amboy, NJ.
What is the student-teacher ratio at Middlesex County Stem Charter School?
The student-teacher ratio at Middlesex County Stem Charter School is 25.5:1, which is 116% higher than the New Jersey average of 11.8:1 and 62% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Middlesex County Stem Charter School?
49.1% of students at Middlesex County Stem Charter School are eligible for free lunch, compared to the New Jersey average of 29.6%.
What is the racial and ethnic makeup of Middlesex County Stem Charter School?
The largest demographic group at Middlesex County Stem Charter School is Hispanic or Latino at 76.0% of enrollment, in Perth Amboy, NJ.
What is the Resource Investment Index for Middlesex County Stem Charter School?
Middlesex County Stem Charter School has a Resource Investment Index of 53/100 (higher reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Middlesex County Stem Charter School rank among public schools in Perth Amboy?
By Resource Investment Index, Middlesex County Stem Charter School ranks #2 of 3 public schools in Perth Amboy, NJ. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Perth Amboy on the city page.
Is Middlesex County Stem Charter School a good school?
Middlesex County Stem Charter School earns 53/100 on the Resource Investment Index, with class sizes larger than 99% of New Jersey schools. 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 Middlesex County Stem Charter School?
None; Middlesex County Stem Charter School is a single-school charter district, and Middlesex County Stem Charter School is its only campus.
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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.