Enrollment
401
Massachusetts · 2024-25 NCES data
Elementary school (grades K-5) · Billerica, MA
Federal NCES profile for Hajjar Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 39/100.
The verdict
Hajjar Elementary earns 39/100 on the Resource Investment Index, with class sizes larger than 90% of Massachusetts schools.
Hajjar Elementary has class sizes larger than 90% of Massachusetts schools. Computed live against every Massachusetts school reporting to NCES.
By Resource Investment Index, Hajjar Elementary ranks #6 of 6 elementary schools in Billerica, MA.
NCES ID 250267000180 Verify on NCES CCD record →
Enrollment
401
Massachusetts · 2024-25 NCES data
Teachers (FTE)
26.0
Federal CCD staff survey
Students per teacher
15.4:1
vs 12.3:1 Massachusetts avg
+25% vs state
How Hajjar Elementary compares with Massachusetts and U.S. medians
Larger classes than state median
15.4:1 - 3.1 above the Massachusetts state median of 12.3:1, indicating larger average class loads than typical schools in the state.
Hajjar Elementary is a mid-sized elementary school in Billerica, Massachusetts, enrolling 401 students.
Class loads run heavy: 15.4:1 is larger than about 90% of Massachusetts schools and 25% above the 12.3:1 state mean, so each teacher carries more students than is typical.
With 401 students, its enrollment sits close to the Massachusetts median campus size.
Its Resource Investment Index lands in the lower third of 1,831 scored Massachusetts schools.
Its student body is led by White (59%) and Hispanic or Latino (19%) (diversity index 60/100).
Attendance runs somewhat below the norm, with 20.9% of students chronically absent per the 2021-22 civil-rights collection.
Among Billerica's elementary schools, it stands alongside Marshall Middle School (596 students): Hajjar Elementary is smaller than that campus by headcount and runs heavier classes (15.4:1 vs 12.2:1).
Billerica also operates Billerica Memorial High School (1,816 students) and Marshall Middle School (596 students) alongside Hajjar Elementary.
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
Hajjar Elementary on the metrics families compare, against Massachusetts and U.S. means.
| Metric | This school | vs Massachusetts | Massachusetts avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 15.4:1 | ▲ 25% | 12.3:1 | 15.7:1 |
| Enrollment | 401 | top 52% | - | - |
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 59.3% of enrollment.
Simpson diversity index - at 59.5, Hajjar Elementary is more mixed than the Massachusetts school average of 47.3.
District-wide per-pupil expenditure for Billerica, which includes Hajjar Elementary.
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 |
|---|---|---|---|
| Billerica Memorial High School | Larger | No free-lunch data | Similar S:T ratio |
| Marshall Middle School | Larger | No free-lunch data | Lower S:T ratio |
| Thomas Ditson | Larger | No free-lunch data | Similar S:T ratio |
| Locke Middle | Larger | No free-lunch data | Lower S:T ratio |
| Parker | Similar size | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Hajjar Elementary's own figures; each column derives from NCES Common Core of Data.
5 comparable elementary schools (grades K-5) serving the same city.
Matched by enrollment size and by staffing ratio across all of Massachusetts, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Hajjar Elementary'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.
Hajjar Elementary has 401 students enrolled. It is an elementary school in Billerica, MA.
The student-teacher ratio at Hajjar Elementary is 15.4:1, which is 25% higher than the Massachusetts average of 12.3:1 and 2% lower than the national average of 15.7:1.
The largest demographic group at Hajjar Elementary is White at 59.3% of enrollment, in Billerica, MA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 59.5/100.
Hajjar Elementary has a Resource Investment Index of 39/100 (typical 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).
By Resource Investment Index, Hajjar Elementary ranks #6 of 6 elementary schools in Billerica, MA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Billerica on the city page.
Hajjar Elementary earns 39/100 on the Resource Investment Index, with class sizes larger than 90% of Massachusetts 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 Hajjar Elementary, Billerica also operates Billerica Memorial High School (1,816 students), Marshall Middle School (596 students), and Thomas Ditson (542 students). See the Billerica 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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Last updated:
PlainSchools, “Hajjar Elementary, Billerica MA.” 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/hajjar-elementary-ma
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