Enrollment
340
Maine · 2024-25 NCES data
Other / mixed grade configuration · Dyer Brook, ME
Federal NCES profile for So Aroostook School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 44/100.
The verdict
So Aroostook School earns 44/100 on the Resource Investment Index, with class sizes near the Maine median.
So Aroostook School has class sizes near the Maine median. Computed live against every Maine school reporting to NCES.
Enrollment
340
Maine · 2024-25 NCES data
Teachers (FTE)
30.0
Federal CCD staff survey
Students per teacher
11.3:1
vs 11.1:1 Maine avg
+2% vs state
Free-lunch eligible
48.5%
vs 34.0% Maine avg
+43% vs state
How So Aroostook School compares with Maine and U.S. medians
So Aroostook School is a mid-sized combined-grade school in Dyer Brook, Maine, enrolling 340 students.
At 11.3:1, its student-teacher ratio sits close to the Maine median, within a few percentage points of the 11.1:1 state norm, neither notably crowded nor notably small.
Economic need runs somewhat above the state's typical profile, with 48.5% of students eligible for free meals.
Enrollment of 340 puts it in the larger third of Maine schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 569 scored Maine schools.
Against 105 statewide peers matched on enrollment and economic need, it ranks mid-pack at #48.
Its student body is predominantly White (93% of enrollment) (diversity index 14/100).
Counselor coverage is strong, about 170 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 29.4% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Rsu 50 operates only this one school, so So Aroostook School has no district-mates to compare against locally.
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
So Aroostook School on the metrics families compare, against Maine and U.S. means.
| Metric | This school | vs Maine | Maine avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 11.3:1 | ▲ 2% | 11.1:1 | 15.7:1 |
| Free-lunch eligible | 48.5% | ▲ 43% | 34.0% | 51.7% |
| Enrollment | 340 | top 31% | - | - |
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 92.9% of enrollment.
Simpson diversity index - at 13.5, So Aroostook School is less mixed than the Maine school average of 20.6.
District-wide per-pupil expenditure for Rsu 50, which includes So Aroostook 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.
Matched by enrollment size and by staffing ratio across all of Maine, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on So Aroostook 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.
So Aroostook School has 340 students enrolled. It is a public school in Dyer Brook, ME.
The student-teacher ratio at So Aroostook School is 11.3:1, which is 2% higher than the Maine average of 11.1:1 and 28% lower than the national average of 15.7:1.
48.5% of students at So Aroostook School are eligible for free lunch, compared to the Maine average of 34.0%.
The largest demographic group at So Aroostook School is White at 92.9% of enrollment, in Dyer Brook, ME.
So Aroostook School has a Resource Investment Index of 44/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
So Aroostook School earns 44/100 on the Resource Investment Index, with class sizes near the Maine 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.
None reported; Rsu 50 operates only So Aroostook School as a public school district in NCES's records.
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.