Enrollment
474
Maine · 2024-25 NCES data
Other / mixed grade configuration · Lewiston, ME
Federal NCES profile for Thomas J Mcmahon Elementary Sch, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 35/100.
The verdict
Thomas J Mcmahon Elementary Sch earns 35/100 on the Resource Investment Index, with class sizes smaller than 82% of Maine schools. It is also more racially and ethnically mixed than most Maine schools.
Thomas J Mcmahon Elementary Sch has class sizes smaller than 82% of Maine schools. Computed live against every Maine school reporting to NCES.
By Resource Investment Index, Thomas J Mcmahon Elementary Sch ranks #4 of 6 schools in Lewiston, ME.
NCES ID 230732000196 Verify on NCES CCD record →
Enrollment
474
Maine · 2024-25 NCES data
Teachers (FTE)
54.0
Federal CCD staff survey
Students per teacher
8.8:1
vs 11.1:1 Maine avg
-21% vs state
Free-lunch eligible
63.1%
vs 34.0% Maine avg
+86% vs state
How Thomas J Mcmahon Elementary Sch compares with Maine and U.S. medians
Smaller classes than state median
8.8:1 - 2.3 below the Maine state median of 11.1:1, indicating smaller average class loads than typical schools in the state.
Thomas J Mcmahon Elementary Sch is a higher-need, mid-sized combined-grade school in Lewiston, Maine, enrolling 474 students.
Class sizes run a bit leaner than typical: 8.8:1 puts it in the smaller third of Maine schools by student-teacher ratio.
Economic need is high: 63.1% of students qualify for free meals, 86% above the Maine average, a Title I-weighted population that federal funding formulas prioritise.
Enrollment of 474 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 33 statewide peers matched on enrollment and economic need, it ranks mid-pack at #24.
Its student body is led by White (53%) and African American (35%), more mixed than most schools in the state (diversity index 59/100).
Counselor access is stretched at roughly 474 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 51.3% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Lewiston's public schools, it stands alongside Robert V. Connors Elementary School (737 students): Thomas J Mcmahon Elementary Sch is smaller than that campus by headcount and runs leaner classes (8.8:1 vs 9.7:1).
Lewiston Public Schools also operates Lewiston High School (1,709 students) and Lewiston Middle School (744 students) alongside Thomas J Mcmahon Elementary 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
Thomas J Mcmahon Elementary 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 | 8.8:1 | ▼ 21% | 11.1:1 | 15.7:1 |
| Free-lunch eligible | 63.1% | ▲ 86% | 34.0% | 51.7% |
| Enrollment | 474 | top 18% | - | - |
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 53.0% of enrollment.
Simpson diversity index - at 58.7, Thomas J Mcmahon Elementary Sch is more mixed than the Maine school average of 20.6.
District-wide per-pupil expenditure for Lewiston Public Schools, which includes Thomas J Mcmahon Elementary Sch.
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 |
|---|---|---|---|
| Lewiston High School | Larger | Lower economic need | Higher S:T ratio |
| Lewiston Middle School | Larger | Similar economic need | Higher S:T ratio |
| Robert V. Connors Elementary School | Larger | Higher economic need | Similar S:T ratio |
| Montello School | Larger | Higher economic need | Higher S:T ratio |
| Raymond a. Geiger Elementary School | Similar size | Lower economic need | Higher S:T ratio |
Comparisons are relative to Thomas J Mcmahon Elementary Sch's own figures; each column derives from NCES Common Core of Data.
5 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 Thomas J Mcmahon Elementary Sch'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.
Thomas J Mcmahon Elementary Sch has 474 students enrolled. It is a public school in Lewiston, ME.
The student-teacher ratio at Thomas J Mcmahon Elementary Sch is 8.8:1, which is 21% lower than the Maine average of 11.1:1 and 44% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
63.1% of students at Thomas J Mcmahon Elementary Sch are eligible for free lunch, compared to the Maine average of 34.0%.
The largest demographic group at Thomas J Mcmahon Elementary Sch is White at 53.0% of enrollment, in Lewiston, ME. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 58.7/100.
Thomas J Mcmahon Elementary Sch has a Resource Investment Index of 35/100 (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).
By Resource Investment Index, Thomas J Mcmahon Elementary Sch ranks #4 of 6 schools in Lewiston, ME. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Lewiston on the city page.
Thomas J Mcmahon Elementary Sch earns 35/100 on the Resource Investment Index, with class sizes smaller than 82% of Maine schools. 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 Thomas J Mcmahon Elementary Sch, Lewiston Public Schools also operates Lewiston High School (1,709 students), Lewiston Middle School (744 students), and Robert V. Connors Elementary School (737 students). See the Lewiston 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, “Thomas J Mcmahon Elementary Sch, Lewiston 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/thomas-j-mcmahon-elementary-sch-me
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