Enrollment
2,405
Massachusetts · 2024-25 NCES data
High school (grades 9-12) · Lexington, MA
Federal NCES profile for Lexington High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 64/100.
The verdict
Lexington High earns 64/100 on the Resource Investment Index, with class sizes near the Massachusetts median. It is also one of the largest schools in Massachusetts.
Lexington High has class sizes near the Massachusetts median. Computed live against every Massachusetts school reporting to NCES.
By Resource Investment Index, Lexington High ranks #2 of 11 public schools in Lexington, MA.
NCES ID 250684001001 Verify on NCES CCD record →
Enrollment
2,405
Massachusetts · 2024-25 NCES data
Teachers (FTE)
188.0
Federal CCD staff survey
Students per teacher
12.8:1
vs 12.3:1 Massachusetts avg
+4% vs state
How Lexington High compares with Massachusetts and U.S. medians
Slightly above state median
12.8:1 - 0.5 above the Massachusetts state median of 12.3:1, indicating larger average class loads than typical schools in the state.
Lexington High is a large high school in Lexington, Massachusetts, enrolling 2,405 students.
Class loads run somewhat heavier than typical: 12.8:1 puts it in the larger third of Massachusetts schools by student-teacher ratio.
By headcount it is one of the larger campuses in Massachusetts, bigger than 99% of state schools at 2,405 students.
Its Resource Investment Index outscores 91% of the 1,831 Massachusetts schools with a score on record, a top-tier result on this measure.
Its student body is led by Asian (47%) and White (37%) (diversity index 63/100).
On the academic-pipeline side it reports 21 Advanced Placement courses.
Counselor coverage is strong, about 176 students per counselor, inside the American School Counselor Association's recommended 250:1.
Attendance holds up well here: only 8.9% of students were chronically absent, below the typical post-pandemic national figure.
Among Lexington's high schools, it stands alongside Minuteman Regional High (669 students): Lexington High is larger than that campus by headcount and runs heavier classes (12.8:1 vs 8.6:1).
Lexington also operates Wm Diamond Middle (936 students) and Jonas Clarke Middle (796 students) alongside Lexington High.
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
Lexington High on the metrics families compare, against Massachusetts and U.S. means.
| Metric | This school | vs Massachusetts | Massachusetts avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 12.8:1 | ▲ 4% | 12.3:1 | 15.7:1 |
| Enrollment | 2,405 | top 1% | - | - |
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: Asian at 46.8% of enrollment.
Simpson diversity index - at 63.3, Lexington High is more mixed than the Massachusetts school average of 47.3.
District-wide per-pupil expenditure for Lexington, which includes Lexington High.
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 |
|---|---|---|---|
| Wm Diamond Middle | Smaller | No free-lunch data | Lower S:T ratio |
| Jonas Clarke Middle | Smaller | No free-lunch data | Lower S:T ratio |
| Maria Hastings | Smaller | No free-lunch data | Similar S:T ratio |
| Joseph Estabrook | Smaller | No free-lunch data | Similar S:T ratio |
| Bowman | Smaller | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Lexington High's own figures; each column derives from NCES Common Core of Data.
1 comparable high schools (grades 9-12) serving the same city.
Matched by enrollment size and by staffing ratio across all of Massachusetts, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Lexington High'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.
Lexington High has 2,405 students enrolled. It is a high school in Lexington, MA.
The student-teacher ratio at Lexington High is 12.8:1, which is 4% higher than the Massachusetts average of 12.3:1 and 18% lower than the national average of 15.7:1.
The largest demographic group at Lexington High is Asian at 46.8% of enrollment, in Lexington, MA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 63.3/100.
Lexington High has a Resource Investment Index of 64/100 (higher reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Lexington High ranks #2 of 11 public schools in Lexington, MA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Lexington on the city page.
Lexington High earns 64/100 on the Resource Investment Index, with class sizes near the Massachusetts median. It is also one of the largest schools in Massachusetts. 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 Lexington High, Lexington also operates Wm Diamond Middle (936 students), Jonas Clarke Middle (796 students), and Maria Hastings (579 students). See the Lexington 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, “Lexington High, Lexington MA.” 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/lexington-high-ma
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