Enrollment
212
Missouri · 2024-25 NCES data
Middle school (grades 6-8) · Diamond, MO
Diamond Middle
Federal NCES profile for Diamond Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 40/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 291080000572
👥 S:T ratio 35
🌟 Gifted program 30
🎓 Counselors 58
📋 Attendance 39
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Diamond Middle earns 40/100 on the Resource Investment Index, with class sizes larger than 89% of Missouri schools.
- #3 of 3
- public schools in Diamond · Resource Index
- 40
- Resource Index · Typical
- 16.3:1
- large classes for Missouri
- 43.1%
- free-lunch eligible
Diamond Middle has class sizes larger than 89% of Missouri schools. Computed live against every Missouri school reporting to NCES.
By Resource Investment Index, Diamond Middle ranks #3 of 3 public schools in Diamond, MO.
School address
District: Diamond R-Iv · Missouri
NCES ID 291080000572 Verify on NCES CCD record →
Teachers (FTE)
13.0
Federal CCD staff survey
Students per teacher
16.3:1
vs 12.8:1 Missouri avg
+27% vs state
Free-lunch eligible
43.1%
vs 46.1% Missouri avg
-7% vs state
Student-teacher ratio in context
How Diamond Middle compares with Missouri and U.S. medians
What stands out at Diamond Middle
Diamond Middle is a mid-sized middle school in Diamond, Missouri, enrolling 212 students.
Class loads run heavy: 16.3:1 is larger than about 89% of Missouri schools and 27% above the 12.8:1 state mean, so each teacher carries more students than is typical.
Its free-meal eligibility rate of 43.1% lands close to the Missouri typical range, neither a high- nor low-need campus by this measure.
Enrollment of 212 puts it in the smaller third of Missouri schools by headcount.
Its Resource Investment Index lands in the lower third of 2,313 scored Missouri schools.
Among 346 similarly sized, similarly resourced-need Missouri schools statewide, it ranks #301, in the lower tier once campus size and economic need are matched.
Its student body is predominantly White (88% of enrollment) (diversity index 23/100).
Counselor coverage is strong, about 212 students per counselor, inside the American School Counselor Association's recommended 250:1.
Attendance runs somewhat below the norm, with 24.5% of students chronically absent per the 2021-22 civil-rights collection.
Its district draws 21.4% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Diamond R-Iv also operates Diamond Elem. (332 students) and Diamond High (243 students) alongside Diamond Middle.
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 Diamond Middle compares
Diamond Middle on the metrics families compare, against Missouri and U.S. means.
| Metric | This school | vs Missouri | Missouri avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 16.3:1 | ▲ 27% | 12.8:1 | 15.7:1 |
| Free-lunch eligible | 43.1% | ▼ 7% | 46.1% | 51.7% |
| Enrollment | 212 | top 68% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
16.3:1
Leaner classes than 36% of US schools, a middle-of-the-pack class size.
212
Bigger than 21% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
43.1%
free-lunch eligible
- 7% below the Missouri average of 46.1%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
16.3:1
students per teacher
- 27% above state mean
Top 89% in Missouri - lower ratio than 11% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
24.5%
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
$12,438
per pupil, district-wide
- below Missouri avg of $12,931
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 212 students, the combined health-and-guidance staffing load for this school.
Discipline context
11
in-school suspensions + 8 out-of-school
Suspension rate: 5.2 per 100 students. Combined in-school and out-of-school rate: 9.0 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 87.7%
Two or More 3.8%
American Indian / Alaska Native 3.3%
Hispanic or Latino 2.8%
African American 1.4%
Native Hawaiian / Pacific Islander 0.9%
Largest group: White at 87.7% of enrollment.
Student-body diversity index 22.7/100
Simpson diversity index - at 22.7, Diamond Middle is less mixed than the Missouri school average of 31.0.
Programs
Funding & spending
District-wide per-pupil expenditure for Diamond R-Iv, which includes Diamond Middle.
$12,438
Per student
-4%
vs Missouri
Avg $12,931
-25%
vs U.S.
Avg $16,593
Revenue mix
Local 47.1%
State 31.5%
Federal 21.4%
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 Diamond Middle Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Diamond Elem. | Larger | Similar economic need | Lower S:T ratio |
| Diamond High | Similar size | Similar economic need | Lower S:T ratio |
Comparisons are relative to Diamond Middle's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 332
- Students per teacher
- 13.8:1
- Resource Index
- 46/100
- Enrollment
- 243
- Students per teacher
- 11.6:1
- Resource Index
- 45/100
Similar middle schools statewide
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.
Similar enrollment (~212 students)
Similar student-teacher ratio (~16.3:1)
Next steps
Verify locally before acting on Diamond Middle's federal record.
- Compare Diamond Middle against another school. Compare schools
- Diamond R-Iv'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 Diamond Middle
How many students attend Diamond Middle?
Diamond Middle has 212 students enrolled. It is a middle school in Diamond, MO.
What is the student-teacher ratio at Diamond Middle?
The student-teacher ratio at Diamond Middle is 16.3:1, which is 27% higher than the Missouri average of 12.8:1 and 4% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Diamond Middle?
43.1% of students at Diamond Middle are eligible for free lunch, compared to the Missouri average of 46.1%.
What is the racial and ethnic makeup of Diamond Middle?
The largest demographic group at Diamond Middle is White at 87.7% of enrollment, in Diamond, MO.
What is the Resource Investment Index for Diamond Middle?
Diamond Middle has a Resource Investment Index of 40/100 (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).
How does Diamond Middle rank among public schools in Diamond?
By Resource Investment Index, Diamond Middle ranks #3 of 3 public schools in Diamond, 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 Diamond on the city page.
Is Diamond Middle a good school?
Diamond Middle earns 40/100 on the Resource Investment Index, with class sizes larger than 89% of Missouri 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 Diamond R-Iv?
Besides Diamond Middle, Diamond R-Iv also operates Diamond Elem. (332 students) and Diamond High (243 students). See the Diamond R-Iv 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.