Enrollment
1,686
New Hampshire · 2024-25 NCES data
High school (grades 9-12) · Nashua, NH
Federal NCES profile for Nashua High School South, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 51/100.
The verdict
Nashua High School South earns 51/100 on the Resource Investment Index, with class sizes larger than 76% of New Hampshire schools. It is also one of the largest schools in New Hampshire.
Nashua High School South has class sizes larger than 76% of New Hampshire schools. Computed live against every New Hampshire school reporting to NCES.
By Resource Investment Index, Nashua High School South ranks #2 of 3 high schools in Nashua, NH.
NCES ID 330498000323 Verify on NCES CCD record →
Enrollment
1,686
New Hampshire · 2024-25 NCES data
Teachers (FTE)
134.0
Federal CCD staff survey
Students per teacher
12.6:1
vs 11.3:1 New Hampshire avg
+12% vs state
Free-lunch eligible
22.8%
vs 21.5% New Hampshire avg
+6% vs state
How Nashua High School South compares with New Hampshire and U.S. medians
Slightly above state median
12.6:1 - 1.3 above the New Hampshire state median of 11.3:1, indicating larger average class loads than typical schools in the state.
Nashua High School South is a large high school in Nashua, New Hampshire, enrolling 1,686 students.
Class loads run somewhat heavier than typical: 12.6:1 puts it in the larger third of New Hampshire schools by student-teacher ratio.
Its free-meal eligibility rate of 22.8% lands close to the New Hampshire typical range, neither a high- nor low-need campus by this measure.
By headcount it is one of the larger campuses in New Hampshire, bigger than 99% of state schools at 1,686 students.
Its Resource Investment Index lands in the lower third of 500 scored New Hampshire schools.
Its student body is led by White (49%) and Hispanic or Latino (29%), more mixed than most schools in the state (diversity index 66/100).
On the academic-pipeline side it reports 20 Advanced Placement courses.
Counselor coverage is strong, about 130 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 46.6% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Nashua School District spends $17,617 per pupil, 38% below the New Hampshire average, a leaner-resourced district than most.
Discipline events run high: 379 in- and out-of-school suspensions were reported for 1,686 students in the 2021-22 Civil Rights Data Collection.
Among Nashua's high schools, it stands alongside Nashua High School North (1,543 students): Nashua High School South is larger than that campus by headcount and runs heavier classes (12.6:1 vs 12:1).
Nashua School District also operates Nashua High School North (1,543 students) and Elm Street Middle School (874 students) alongside Nashua High School South.
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
Nashua High School South on the metrics families compare, against New Hampshire and U.S. means.
| Metric | This school | vs New Hampshire | New Hampshire avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 12.6:1 | ▲ 12% | 11.3:1 | 15.7:1 |
| Free-lunch eligible | 22.8% | ▲ 6% | 21.5% | 51.7% |
| Enrollment | 1,686 | top 1% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
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.
Largest group: White at 48.9% of enrollment.
Simpson diversity index - at 65.6, Nashua High School South is more mixed than the New Hampshire school average of 24.3.
District-wide per-pupil expenditure for Nashua School District, which includes Nashua High School South.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Nashua High School North | Similar size | Similar economic need | Similar S:T ratio |
| Elm Street Middle School | Smaller | Higher economic need | Lower S:T ratio |
| Pennichuck Middle School | Smaller | Higher economic need | Similar S:T ratio |
| Fairgrounds Middle School | Smaller | Similar economic need | Lower S:T ratio |
| Bicentennial Elementary School | Smaller | Lower economic need | Similar S:T ratio |
Comparisons are relative to Nashua High School South's own figures; each column derives from NCES Common Core of Data.
2 comparable high schools (grades 9-12) serving the same city.
Matched by enrollment size and by staffing ratio across all of New Hampshire, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Nashua High School South's federal record.
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.
Nashua High School South has 1,686 students enrolled. It is a high school in Nashua, NH.
The student-teacher ratio at Nashua High School South is 12.6:1, which is 12% higher than the New Hampshire average of 11.3:1 and 20% lower than the national average of 15.7:1.
22.8% of students at Nashua High School South are eligible for free lunch, compared to the New Hampshire average of 21.5%.
The largest demographic group at Nashua High School South is White at 48.9% of enrollment, in Nashua, NH. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 65.6/100.
Nashua High School South has a Resource Investment Index of 51/100 (higher reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Nashua High School South ranks #2 of 3 high schools in Nashua, NH. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Nashua on the city page.
Nashua High School South earns 51/100 on the Resource Investment Index, with class sizes larger than 76% of New Hampshire schools. It is also one of the largest schools in New Hampshire. 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.
Besides Nashua High School South, Nashua School District also operates Nashua High School North (1,543 students), Elm Street Middle School (874 students), and Pennichuck Middle School (768 students). See the Nashua School District district page for the complete list.
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.
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PlainSchools, “Nashua High School South, Nashua NH.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/nashua-high-school-south-nh
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