Enrollment
289
Maine · 2024-25 NCES data
Other / mixed grade configuration · Calais, ME
Federal NCES profile for Calais Middle/High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 32/100.
The verdict
Calais Middle/High School earns 32/100 on the Resource Investment Index, with class sizes near the Maine median. It is also more racially and ethnically mixed than most Maine schools.
Calais Middle/High School has class sizes near the Maine median. Computed live against every Maine school reporting to NCES.
NCES ID 230387000106 Verify on NCES CCD record →
Enrollment
289
Maine · 2024-25 NCES data
Teachers (FTE)
26.0
Federal CCD staff survey
Students per teacher
11.1:1
vs 11.1:1 Maine avg
+0% vs state
Free-lunch eligible
34.5%
vs 34.0% Maine avg
+1% vs state
How Calais Middle/High School compares with Maine and U.S. medians
At or below state median
11.1:1 - 0.0 below the Maine state median of 11.1:1, indicating smaller average class loads than typical schools in the state.
Calais Middle/High School is a mid-sized combined-grade school in Calais, Maine, enrolling 289 students.
At 11.1:1, 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.
Its free-meal eligibility rate of 34.5% lands close to the Maine typical range, neither a high- nor low-need campus by this measure.
With 289 students, its enrollment sits close to the Maine median campus size.
Its Resource Investment Index trails 92% of the 569 Maine schools with a score on record, one of the lower results on this measure.
Among 154 similarly sized, similarly resourced-need Maine schools statewide, it ranks #143, in the lower tier once campus size and economic need are matched.
Its student body is led by White (75%) and American Indian / Alaska Native (16%), more mixed than most schools in the state (diversity index 41/100).
Counselor coverage runs a bit thin, about 289 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 66.1% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 18.5% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Discipline events run high: 62 in- and out-of-school suspensions were reported for 289 students in the 2021-22 Civil Rights Data Collection.
Among Calais's public schools, it stands alongside Calais Elementary School (250 students): Calais Middle/High School is larger than that campus by headcount and runs heavier classes (11.1:1 vs 9.6:1).
Its district, Calais Public Schools, also runs Calais Elementary School (250 students).
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
Calais Middle/High 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 | 11.1:1 | ▼ 0% | 11.1:1 | 15.7:1 |
| Free-lunch eligible | 34.5% | ▲ 1% | 34.0% | 51.7% |
| Enrollment | 289 | top 41% | - | - |
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 74.7% of enrollment.
Simpson diversity index - at 41.4, Calais Middle/High School is more mixed than the Maine school average of 20.6.
District-wide per-pupil expenditure for Calais Public Schools, which includes Calais Middle/High 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 |
|---|---|---|---|
| Calais Elementary School | Similar size | Higher economic need | Lower S:T ratio |
Comparisons are relative to Calais Middle/High School's own figures; each column derives from NCES Common Core of Data.
1 comparable other schools (grades Mixed) serving the same city.
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 Calais Middle/High 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.
Calais Middle/High School has 289 students enrolled. It is a public school in Calais, ME.
The student-teacher ratio at Calais Middle/High School is 11.1:1, which is 0% higher than the Maine average of 11.1:1 and 29% lower than the national average of 15.7:1.
34.5% of students at Calais Middle/High School are eligible for free lunch, compared to the Maine average of 34.0%.
The largest demographic group at Calais Middle/High School is White at 74.7% of enrollment, in Calais, ME.
Calais Middle/High School has a Resource Investment Index of 32/100 (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).
Calais Middle/High School earns 32/100 on the Resource Investment Index, with class sizes near the Maine median. It is also more racially and ethnically mixed than most Maine 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 Calais Middle/High School, Calais Public Schools also operates Calais Elementary School (250 students). See the Calais Public Schools 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, “Calais Middle/High School, Calais ME.” 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/calais-middlehigh-school-me
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