Enrollment
376
Maine · 2024-25 NCES data
Elementary school (grades K-5) · Mexico, ME
Mountain Valley Middle School
Federal NCES profile for Mountain Valley Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 37/100.
2024-25 NCES dataElementary school (grades K-5)NCES 231479500502
👥 S:T ratio 52
🌟 Gifted program 70
🎓 Counselors 25
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Mountain Valley Middle School earns 37/100 on the Resource Investment Index, with class sizes larger than 72% of Maine schools.
- 37
- Resource Index · Typical
- 12.1:1
- large classes for Maine
- 72.3%
- free-lunch eligible
- 376
- students enrolled
Mountain Valley Middle School has class sizes larger than 72% of Maine schools. Computed live against every Maine school reporting to NCES.
School address
Teachers (FTE)
31.0
Federal CCD staff survey
Students per teacher
12.1:1
vs 11.1:1 Maine avg
+9% vs state
Free-lunch eligible
72.3%
vs 34.0% Maine avg
+113% vs state
Student-teacher ratio in context
How Mountain Valley Middle School compares with Maine and U.S. medians
What stands out at Mountain Valley Middle School
Mountain Valley Middle School is a higher-need, mid-sized elementary school in Mexico, Maine, enrolling 376 students.
Class loads run somewhat heavier than typical: 12.1:1 puts it in the larger third of Maine schools by student-teacher ratio.
Economic need is high: 72.3% of students qualify for free meals, 113% above the Maine average, a Title I-weighted population that federal funding formulas prioritise.
Enrollment of 376 puts it in the larger third of Maine schools by headcount.
Its Resource Investment Index lands in the lower third of 569 scored Maine schools.
Against 18 statewide peers matched on enrollment and economic need, it ranks mid-pack at #12.
Its student body is predominantly White (89% of enrollment) (diversity index 20/100).
Counselor availability sits well past the ASCA benchmark, roughly 376 students sharing each counselor, though short of the most stretched campuses.
Chronic absenteeism is elevated: 56.6% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 25.0% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Discipline events run high: 100 in- and out-of-school suspensions were reported for 376 students in the 2021-22 Civil Rights Data Collection.
The federal civil-rights collection also records 2 expulsions at this campus for 2021-22.
Rsu 10 also operates Mountain Valley High School (369 students) and Hartford-Sumner Elementary School (297 students) alongside Mountain Valley Middle 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
How Mountain Valley Middle School compares
Mountain Valley Middle 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 | 12.1:1 | ▲ 9% | 11.1:1 | 15.7:1 |
| Free-lunch eligible | 72.3% | ▲ 113% | 34.0% | 51.7% |
| Enrollment | 376 | top 27% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
12.1:1
Leaner classes than 75% of US schools, among the more generously staffed nationally.
376
Bigger than 44% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
72.3%
free-lunch eligible
- 113% above the Maine average of 34.0%
Well above the 40% Title I schoolwide threshold, among the highest-need profiles in the state; federal funds support the whole school, not individual students.
Staffing depth
12.1:1
students per teacher
- 9% above state mean
Top 72% in Maine - lower ratio than 28% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
56.6%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$21,221
per pupil, district-wide
- above Maine avg of $20,083
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors1.0 FTE
Per 376 students, the combined health-and-guidance staffing load for this school.
Discipline context
60
in-school suspensions + 40 out-of-school
Suspension rate: 16.0 per 100 students. Combined in-school and out-of-school rate: 26.6 per 100 students. Reported via the Civil Rights Data Collection. Includes 2 expulsions.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
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.
Student demographics
White 89.4%
Hispanic or Latino 4.5%
Two or More 3.2%
African American 2.1%
Asian 0.5%
American Indian / Alaska Native 0.3%
Largest group: White at 89.4% of enrollment.
Student-body diversity index 19.7/100
Simpson diversity index - at 19.7, Mountain Valley Middle School is about as mixed as the Maine school average of 20.6.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Rsu 10, which includes Mountain Valley Middle School.
$21,221
Per student
+6%
vs Maine
Avg $20,083
+28%
vs U.S.
Avg $16,593
Revenue mix
Local 32.5%
State 42.5%
Federal 25.0%
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.
How Mountain Valley Middle School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Mountain Valley High School | Similar size | Similar economic need | Similar S:T ratio |
| Hartford-Sumner Elementary School | Similar size | Lower economic need | Lower S:T ratio |
| Meroby Elementary School | Smaller | Similar economic need | Lower S:T ratio |
| Buckfield Jr-Sr High School | Smaller | Lower economic need | Lower S:T ratio |
| Rumford Elementary | Smaller | Similar economic need | Lower S:T ratio |
Comparisons are relative to Mountain Valley Middle School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 369
- Students per teacher
- 12.3:1
- Resource Index
- 37/100
- Enrollment
- 297
- Students per teacher
- 10.6:1
- Resource Index
- 42/100
- Enrollment
- 256
- Students per teacher
- 10.2:1
- Resource Index
- 45/100
- Enrollment
- 228
- Students per teacher
- 10.4:1
- Resource Index
- 46/100
- Enrollment
- 213
- Students per teacher
- 8.9:1
- Resource Index
- 48/100
Similar elementary schools statewide
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.
Similar enrollment (~376 students)
Similar student-teacher ratio (~12.1:1)
Next steps
Verify locally before acting on Mountain Valley Middle School's federal record.
- Compare Mountain Valley Middle School against another school. Compare schools
- Rsu 10's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
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.
Frequently asked questions about Mountain Valley Middle School
How many students attend Mountain Valley Middle School?
Mountain Valley Middle School has 376 students enrolled. It is an elementary school in Mexico, ME.
What is the student-teacher ratio at Mountain Valley Middle School?
The student-teacher ratio at Mountain Valley Middle School is 12.1:1, which is 9% higher than the Maine average of 11.1:1 and 23% lower than the national average of 15.7:1.
What percentage of students receive free lunch at Mountain Valley Middle School?
72.3% of students at Mountain Valley Middle School are eligible for free lunch, compared to the Maine average of 34.0%.
What is the racial and ethnic makeup of Mountain Valley Middle School?
The largest demographic group at Mountain Valley Middle School is White at 89.4% of enrollment, in Mexico, ME.
What is the Resource Investment Index for Mountain Valley Middle School?
Mountain Valley Middle School has a Resource Investment Index of 37/100 (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).
Is Mountain Valley Middle School a good school?
Mountain Valley Middle School earns 37/100 on the Resource Investment Index, with class sizes larger than 72% of 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.
What other schools are in Rsu 10?
Besides Mountain Valley Middle School, Rsu 10 also operates Mountain Valley High School (369 students), Hartford-Sumner Elementary School (297 students), and Meroby Elementary School (256 students). See the Rsu 10 district page for the complete list.
Related tools
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.