Enrollment
147
Maine · 2024-25 NCES data
Middle school (grades 6-8) · Sullivan, ME
Sumner Middle Sch
Federal NCES profile for Sumner Middle Sch, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 63/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 231479023202
👥 S:T ratio 63
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Sumner Middle Sch earns 63/100 on the Resource Investment Index, with class sizes smaller than 79% of Maine schools.
- #1 of 3
- public schools in Sullivan · Resource Index
- 63
- Resource Index · Higher
- 9.2:1
- small classes for Maine
- 34.4%
- free-lunch eligible
Sumner Middle Sch has class sizes smaller than 79% of Maine schools. Computed live against every Maine school reporting to NCES.
By Resource Investment Index, Sumner Middle Sch ranks #1 of 3 public schools in Sullivan, ME.
School address
Teachers (FTE)
16.0
Federal CCD staff survey
Students per teacher
9.2:1
vs 11.1:1 Maine avg
-17% vs state
Free-lunch eligible
34.4%
vs 34.0% Maine avg
+1% vs state
Student-teacher ratio in context
How Sumner Middle Sch compares with Maine and U.S. medians
What stands out at Sumner Middle Sch
Sumner Middle Sch is a mid-sized middle school in Sullivan, Maine, enrolling 147 students.
Class sizes run a bit leaner than typical: 9.2:1 puts it in the smaller third of Maine schools by student-teacher ratio.
Its free-meal eligibility rate of 34.4% lands close to the Maine typical range, neither a high- nor low-need campus by this measure.
Enrollment of 147 puts it in the smaller third of Maine schools by headcount.
Its Resource Investment Index outscores 95% of the 569 Maine schools with a score on record, a top-tier result on this measure.
Among 108 similarly sized, similarly resourced-need Maine schools statewide, it ranks #7, a top-tier result once campus size and economic need are matched.
Its student body is predominantly White (91% of enrollment) (diversity index 18/100).
Rsu 24 also operates Sumner Memorial High School (214 students) and Mountain View Sch (152 students) alongside Sumner Middle Sch.
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 Sumner Middle Sch compares
Sumner Middle Sch on the metrics families compare, against Maine and U.S. means.
| Metric | This school | vs Maine | Maine avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 9.2:1 | ▼ 17% | 11.1:1 | 15.7:1 |
| Free-lunch eligible | 34.4% | ▲ 1% | 34.0% | 51.7% |
| Enrollment | 147 | top 73% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
9.2:1
Leaner classes than 92% of US schools, among the more generously staffed nationally.
147
Bigger than 14% of US schools by enrollment, a small campus.
Equity indicators (what these measure)
Economic need
34.4%
free-lunch eligible
- 1% above the Maine average of 34.0%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
9.2:1
students per teacher
- 17% below state mean
Top 21% in Maine - lower ratio than 79% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Funding equity
$21,619
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.
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 90.5%
Two or More 4.1%
Hispanic or Latino 2.7%
American Indian / Alaska Native 2.0%
African American 0.7%
Largest group: White at 90.5% of enrollment.
Student-body diversity index 17.8/100
Simpson diversity index - at 17.8, Sumner Middle Sch is less mixed than the Maine school average of 20.6.
Funding & spending
District-wide per-pupil expenditure for Rsu 24, which includes Sumner Middle Sch.
$21,619
Per student
+8%
vs Maine
Avg $20,083
+30%
vs U.S.
Avg $16,593
Revenue mix
Local 62.2%
State 22.9%
Federal 14.9%
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 Sumner Middle Sch Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Sumner Memorial High School | Larger | Similar economic need | Similar S:T ratio |
| Mountain View Sch | Similar size | Similar economic need | Similar S:T ratio |
| Ella Lewis Sch | Smaller | Higher economic need | Similar S:T ratio |
| Peninsula Sch | Smaller | Similar economic need | Lower S:T ratio |
| Cave Hill Sch | Smaller | Similar economic need | Lower S:T ratio |
Comparisons are relative to Sumner Middle Sch's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 214
- Students per teacher
- 10.2:1
- Resource Index
- 47/100
- Enrollment
- 152
- Students per teacher
- 8:1
- Resource Index
- 47/100
- Enrollment
- 79
- Students per teacher
- 9.9:1
- Resource Index
- 38/100
- Enrollment
- 65
- Students per teacher
- 5.9:1
- Resource Index
- 75/100
- Enrollment
- 61
- Students per teacher
- 7.6:1
- Resource Index
- 52/100
Similar middle 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 (~147 students)
Similar student-teacher ratio (~9.2:1)
Next steps
Verify locally before acting on Sumner Middle Sch's federal record.
- Compare Sumner Middle Sch against another school. Compare schools
- Rsu 24'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 Sumner Middle Sch
How many students attend Sumner Middle Sch?
Sumner Middle Sch has 147 students enrolled. It is a middle school in Sullivan, ME.
What is the student-teacher ratio at Sumner Middle Sch?
The student-teacher ratio at Sumner Middle Sch is 9.2:1, which is 17% lower than the Maine average of 11.1:1 and 41% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Sumner Middle Sch?
34.4% of students at Sumner Middle Sch are eligible for free lunch, compared to the Maine average of 34.0%.
What is the racial and ethnic makeup of Sumner Middle Sch?
The largest demographic group at Sumner Middle Sch is White at 90.5% of enrollment, in Sullivan, ME.
What is the Resource Investment Index for Sumner Middle Sch?
Sumner Middle Sch has a Resource Investment Index of 63/100 (higher reported resources relative to schools nationally) based on 1 factor: student-teacher ratio. Not a test-score or academic measure (national median ~41/100, see methodology). Limited indicators were available, so the index reflects partial data.
How does Sumner Middle Sch rank among public schools in Sullivan?
By Resource Investment Index, Sumner Middle Sch ranks #1 of 3 public schools in Sullivan, ME. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Sullivan on the city page.
Is Sumner Middle Sch a good school?
Sumner Middle Sch earns 63/100 on the Resource Investment Index, with class sizes smaller than 79% 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 24?
Besides Sumner Middle Sch, Rsu 24 also operates Sumner Memorial High School (214 students), Mountain View Sch (152 students), and Ella Lewis Sch (79 students). See the Rsu 24 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.