Enrollment
436
Maine · 2024-25 NCES data
Other / mixed grade configuration · Springvale, ME
Carl J Lamb School
Federal NCES profile for Carl J Lamb School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 52/100.
2024-25 NCES dataOther / mixed grade configurationNCES 231050001030
👥 S:T ratio 58
🌟 Gifted program 70
🎓 Counselors 46
📋 Attendance 33
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Carl J Lamb School earns 52/100 on the Resource Investment Index, with class sizes near the Maine median.
- 52
- Resource Index · Higher
- 10.6:1
- students per teacher
- 37.6%
- free-lunch eligible
- 436
- students enrolled
Carl J Lamb School has class sizes near the Maine median. Computed live against every Maine school reporting to NCES.
School address
District: Sanford Public Schools · Maine
NCES ID 231050001030 Verify on NCES CCD record →
Teachers (FTE)
41.0
Federal CCD staff survey
Students per teacher
10.6:1
vs 11.1:1 Maine avg
-5% vs state
Free-lunch eligible
37.6%
vs 34.0% Maine avg
+11% vs state
Student-teacher ratio in context
How Carl J Lamb School compares with Maine and U.S. medians
What stands out at Carl J Lamb School
Carl J Lamb School is a mid-sized combined-grade school in Springvale, Maine, enrolling 436 students.
At 10.6:1, 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 37.6% of students eligible for free meals.
Enrollment of 436 puts it in the larger third of Maine schools by headcount.
Its Resource Investment Index lands in the upper third of 569 scored Maine schools.
Against 123 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #19.
Its student body is predominantly White (81% of enrollment) (diversity index 33/100).
Counselor coverage runs a bit thin, about 273 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 26.8% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Sanford Public Schools also operates Sanford High School (1,115 students) and Sanford Middle School (920 students) alongside Carl J Lamb 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 Carl J Lamb School compares
Carl J Lamb 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 | 10.6:1 | ▼ 5% | 11.1:1 | 15.7:1 |
| Free-lunch eligible | 37.6% | ▲ 11% | 34.0% | 51.7% |
| Enrollment | 436 | top 20% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
10.6:1
Leaner classes than 85% of US schools, among the more generously staffed nationally.
436
Bigger than 53% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
37.6%
free-lunch eligible
- 11% 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
10.6:1
students per teacher
- 5% below state mean
Top 44% in Maine - lower ratio than 56% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
26.8%
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
$17,120
per pupil, district-wide
- below Maine avg of $20,083
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors1.6 FTE
Per 273 students, the combined health-and-guidance staffing load for this school.
Discipline context
7
in-school suspensions + 6 out-of-school
Suspension rate: 1.6 per 100 students. Combined in-school and out-of-school rate: 3.0 per 100 students. Reported via the Civil Rights Data Collection.
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 81.4%
Hispanic or Latino 6.9%
African American 5.5%
Two or More 4.8%
American Indian / Alaska Native 0.7%
Asian 0.5%
Native Hawaiian / Pacific Islander 0.2%
Largest group: White at 81.4% of enrollment.
Student-body diversity index 32.7/100
Simpson diversity index - at 32.7, Carl J Lamb School is more mixed than the Maine school average of 20.6.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Sanford Public Schools, which includes Carl J Lamb School.
$17,120
Per student
-15%
vs Maine
Avg $20,083
+3%
vs U.S.
Avg $16,593
Revenue mix
Local 23.3%
State 63.0%
Federal 13.7%
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 Carl J Lamb School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Sanford High School | Larger | Similar economic need | Higher S:T ratio |
| Sanford Middle School | Larger | Similar economic need | Higher S:T ratio |
| Margaret Chase Smith | Similar size | Similar economic need | Similar S:T ratio |
| Sanford Pride Elementary School | Similar size | Higher economic need | Similar S:T ratio |
Comparisons are relative to Carl J Lamb School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,115
- Students per teacher
- 14.7:1
- Resource Index
- 41/100
- Enrollment
- 920
- Students per teacher
- 12.3:1
- Resource Index
- 46/100
- Enrollment
- 396
- Students per teacher
- 10.7:1
- Resource Index
- 47/100
- Enrollment
- 383
- Students per teacher
- 11.3:1
- Resource Index
- 32/100
Similar other 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 (~436 students)
Similar student-teacher ratio (~10.6:1)
Next steps
Verify locally before acting on Carl J Lamb School's federal record.
- Compare Carl J Lamb School against another school. Compare schools
- Sanford Public Schools'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 Carl J Lamb School
How many students attend Carl J Lamb School?
Carl J Lamb School has 436 students enrolled. It is a public school in Springvale, ME.
What is the student-teacher ratio at Carl J Lamb School?
The student-teacher ratio at Carl J Lamb School is 10.6:1, which is 5% lower than the Maine average of 11.1:1 and 32% 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 Carl J Lamb School?
37.6% of students at Carl J Lamb School are eligible for free lunch, compared to the Maine average of 34.0%.
What is the racial and ethnic makeup of Carl J Lamb School?
The largest demographic group at Carl J Lamb School is White at 81.4% of enrollment, in Springvale, ME.
What is the Resource Investment Index for Carl J Lamb School?
Carl J Lamb School has a Resource Investment Index of 52/100 (higher 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 Carl J Lamb School a good school?
Carl J Lamb School earns 52/100 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.
What other schools are in Sanford Public Schools?
Besides Carl J Lamb School, Sanford Public Schools also operates Sanford High School (1,115 students), Sanford Middle School (920 students), and Margaret Chase Smith (396 students). See the Sanford Public Schools 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.