Enrollment
369
Missouri · 2024-25 NCES data
High school (grades 9-12) · Lamar, MO
Federal NCES profile for Lamar High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 48/100.
The verdict
Lamar High earns 48/100 on the Resource Investment Index, with class sizes near the Missouri median.
Lamar High has class sizes near the Missouri median. Computed live against every Missouri school reporting to NCES.
By Resource Investment Index, Lamar High ranks #1 of 4 public schools in Lamar, MO.
Enrollment
369
Missouri · 2024-25 NCES data
Teachers (FTE)
29.0
Federal CCD staff survey
Students per teacher
12.7:1
vs 12.8:1 Missouri avg
-1% vs state
Free-lunch eligible
31.8%
vs 46.1% Missouri avg
-31% vs state
How Lamar High compares with Missouri and U.S. medians
At or below state median
12.7:1 - 0.1 below the Missouri state median of 12.8:1, indicating smaller average class loads than typical schools in the state.
Lamar High is a mid-sized high school in Lamar, Missouri, enrolling 369 students.
At 12.7:1, its student-teacher ratio sits close to the Missouri median, within a few percentage points of the 12.8:1 state norm, neither notably crowded nor notably small.
Economic need runs somewhat below the state's typical profile, with 31.8% of students eligible for free meals.
With 369 students, its enrollment sits close to the Missouri median campus size.
Its Resource Investment Index lands in the upper third of 2,313 scored Missouri schools.
Among 534 similarly sized, similarly resourced-need Missouri schools statewide, it ranks #50, a top-tier result once campus size and economic need are matched.
Its student body is predominantly White (87% of enrollment) (diversity index 24/100).
No Advanced Placement courses are reported for this campus in the federal data.
Counselor coverage is strong, about 185 students per counselor, inside the American School Counselor Association's recommended 250:1.
Attendance runs somewhat below the norm, with 20.3% of students chronically absent per the 2021-22 civil-rights collection.
Its district draws 16.4% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Lamar R-I also operates East Elem. (281 students) and Lamar Middle (255 students) alongside Lamar 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
Lamar High on the metrics families compare, against Missouri and U.S. means.
| Metric | This school | vs Missouri | Missouri avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 12.7:1 | ▼ 1% | 12.8:1 | 15.7:1 |
| Free-lunch eligible | 31.8% | ▼ 31% | 46.1% | 51.7% |
| Enrollment | 369 | top 40% | - | - |
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 86.7% of enrollment.
Simpson diversity index - at 24.3, Lamar High is less mixed than the Missouri school average of 31.0.
District-wide per-pupil expenditure for Lamar R-I, which includes Lamar 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 |
|---|---|---|---|
| East Elem. | Similar size | Higher economic need | Similar S:T ratio |
| Lamar Middle | Smaller | Higher economic need | Lower S:T ratio |
| Lamar Elem. | Smaller | Higher economic need | Similar S:T ratio |
| Lockwood Specl. Educ. Coop. | Smaller | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Lamar High's own figures; each column derives from NCES Common Core of Data.
Matched by enrollment size and by staffing ratio across all of Missouri, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Lamar 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.
Lamar High has 369 students enrolled. It is a high school in Lamar, MO.
The student-teacher ratio at Lamar High is 12.7:1, which is 1% lower than the Missouri average of 12.8:1 and 19% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
31.8% of students at Lamar High are eligible for free lunch, compared to the Missouri average of 46.1%.
The largest demographic group at Lamar High is White at 86.7% of enrollment, in Lamar, MO.
Lamar High has a Resource Investment Index of 48/100 (typical reported resources relative to schools nationally) based on 5 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, Lamar High ranks #1 of 4 public schools in Lamar, MO. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Lamar on the city page.
Lamar High earns 48/100 on the Resource Investment Index, with class sizes near the Missouri 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.
Besides Lamar High, Lamar R-I also operates East Elem. (281 students), Lamar Middle (255 students), and Lamar Elem. (253 students). See the Lamar R-I 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, “Lamar High, Lamar MO.” 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/lamar-high-mo
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