Enrollment
328
New Hampshire · 2024-25 NCES data
Elementary school (grades K-5) · Portsmouth, NH
Federal NCES profile for Mary C. Dondero Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 41/100.
The verdict
Mary C. Dondero Elementary School earns 41/100 on the Resource Investment Index, with class sizes near the New Hampshire median. It is also more racially and ethnically mixed than most New Hampshire schools.
Mary C. Dondero Elementary School has class sizes near the New Hampshire median. Computed live against every New Hampshire school reporting to NCES.
By Resource Investment Index, Mary C. Dondero Elementary School ranks #3 of 3 elementary schools in Portsmouth, NH.
NCES ID 330582000373 Verify on NCES CCD record →
Enrollment
328
New Hampshire · 2024-25 NCES data
Teachers (FTE)
32.0
Federal CCD staff survey
Students per teacher
10.3:1
vs 11.3:1 New Hampshire avg
-9% vs state
Free-lunch eligible
15.2%
vs 21.5% New Hampshire avg
-29% vs state
How Mary C. Dondero Elementary School compares with New Hampshire and U.S. medians
At or below state median
10.3:1 - 1.0 below the New Hampshire state median of 11.3:1, indicating smaller average class loads than typical schools in the state.
Mary C. Dondero Elementary School is a lower-poverty, mid-sized elementary school in Portsmouth, New Hampshire, enrolling 328 students.
Class sizes run a bit leaner than typical: 10.3:1 puts it in the smaller third of New Hampshire schools by student-teacher ratio.
Its free-meal eligibility rate of 15.2% lands close to the New Hampshire typical range, neither a high- nor low-need campus by this measure.
With 328 students, its enrollment sits close to the New Hampshire median campus size.
Its Resource Investment Index sits near the middle of the pack among 500 scored New Hampshire schools.
Against 159 statewide peers matched on enrollment and economic need, it ranks mid-pack at #77.
Its student body is led by White (71%) and Asian (12%), more mixed than most schools in the state (diversity index 47/100).
Counselor availability sits well past the ASCA benchmark, roughly 328 students sharing each counselor, though short of the most stretched campuses.
Attendance runs somewhat below the norm, with 24.4% of students chronically absent per the 2021-22 civil-rights collection.
Among Portsmouth's elementary schools, it stands alongside Little Harbour School (325 students): Mary C. Dondero Elementary School is larger than that campus by headcount and runs heavier classes (10.3:1 vs 9.8:1).
Portsmouth School District also operates Portsmouth High School (1,017 students) and Portsmouth Middle School (486 students) alongside Mary C. Dondero Elementary 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
Mary C. Dondero Elementary School 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 | 10.3:1 | ▼ 9% | 11.3:1 | 15.7:1 |
| Free-lunch eligible | 15.2% | ▼ 29% | 21.5% | 51.7% |
| Enrollment | 328 | top 39% | - | - |
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 71.0% of enrollment.
Simpson diversity index - at 47.2, Mary C. Dondero Elementary School is more mixed than the New Hampshire school average of 24.3.
District-wide per-pupil expenditure for Portsmouth School District, which includes Mary C. Dondero Elementary School.
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 |
|---|---|---|---|
| Portsmouth High School | Larger | Similar economic need | Similar S:T ratio |
| Portsmouth Middle School | Larger | Similar economic need | Similar S:T ratio |
| Little Harbour School | Similar size | Similar economic need | Similar S:T ratio |
| New Franklin School | Similar size | Similar economic need | Similar S:T ratio |
| Peep School - Pre School Program | Smaller | Higher economic need | Higher S:T ratio |
Comparisons are relative to Mary C. Dondero Elementary School's own figures; each column derives from NCES Common Core of Data.
2 comparable elementary schools (grades K-5) 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 Mary C. Dondero Elementary School'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.
Mary C. Dondero Elementary School has 328 students enrolled. It is an elementary school in Portsmouth, NH.
The student-teacher ratio at Mary C. Dondero Elementary School is 10.3:1, which is 9% lower than the New Hampshire average of 11.3:1 and 34% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
15.2% of students at Mary C. Dondero Elementary School are eligible for free lunch, compared to the New Hampshire average of 21.5%.
The largest demographic group at Mary C. Dondero Elementary School is White at 71.0% of enrollment, in Portsmouth, NH.
Mary C. Dondero Elementary School has a Resource Investment Index of 41/100 (typical 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).
By Resource Investment Index, Mary C. Dondero Elementary School ranks #3 of 3 elementary schools in Portsmouth, NH. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Portsmouth on the city page.
Mary C. Dondero Elementary School earns 41/100 on the Resource Investment Index, with class sizes near the New Hampshire median. It is also more racially and ethnically mixed than most New Hampshire 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.
Besides Mary C. Dondero Elementary School, Portsmouth School District also operates Portsmouth High School (1,017 students), Portsmouth Middle School (486 students), and Little Harbour School (325 students). See the Portsmouth 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, “Mary C. Dondero Elementary School, Portsmouth 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/mary-c-dondero-elementary-school-nh
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