Enrollment
145
Missouri · 2024-25 NCES data
Other / mixed grade configuration · Annapolis, MO
Federal NCES profile for South Iron High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 61/100.
The verdict
South Iron High earns 61/100 on the Resource Investment Index, with class sizes smaller than 83% of Missouri schools.
South Iron High has class sizes smaller than 83% of Missouri schools. Computed live against every Missouri school reporting to NCES.
NCES ID 292847001759 Verify on NCES CCD record →
Enrollment
145
Missouri · 2024-25 NCES data
Teachers (FTE)
15.0
Federal CCD staff survey
Students per teacher
9.7:1
vs 12.8:1 Missouri avg
-24% vs state
Free-lunch eligible
65.9%
vs 46.1% Missouri avg
+43% vs state
How South Iron High compares with Missouri and U.S. medians
Smaller classes than state median
9.7:1 - 3.1 below the Missouri state median of 12.8:1, indicating smaller average class loads than typical schools in the state.
South Iron High is a higher-need, mid-sized combined-grade school in Annapolis, Missouri, enrolling 145 students.
Class sizes run a bit leaner than typical: 9.7:1 puts it in the smaller third of Missouri schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 65.9% of students eligible for free meals.
Enrollment of 145 puts it in the smaller third of Missouri schools by headcount.
Its Resource Investment Index outscores 91% of the 2,313 Missouri schools with a score on record, a top-tier result on this measure.
Against 72 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #10.
Its student body is predominantly White (84% of enrollment) (diversity index 28/100).
Counselor coverage is strong, about 145 students per counselor, inside the American School Counselor Association's recommended 250:1.
Attendance holds up well here: only 6.9% of students were chronically absent, below the typical post-pandemic national figure.
Its district draws 23.1% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Its district, South Iron Co. R-I, also runs South Iron Elem. (139 students).
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
South Iron 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 | 9.7:1 | ▼ 24% | 12.8:1 | 15.7:1 |
| Free-lunch eligible | 65.9% | ▲ 43% | 46.1% | 51.7% |
| Enrollment | 145 | top 79% | - | - |
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 84.1% of enrollment.
Simpson diversity index - at 28.2, South Iron High is less mixed than the Missouri school average of 31.0.
District-wide per-pupil expenditure for South Iron Co. R-I, which includes South Iron 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 |
|---|---|---|---|
| South Iron Elem. | Similar size | Similar economic need | Similar S:T ratio |
Comparisons are relative to South Iron 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 South Iron 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.
South Iron High has 145 students enrolled. It is a public school in Annapolis, MO.
The student-teacher ratio at South Iron High is 9.7:1, which is 24% lower than the Missouri average of 12.8:1 and 38% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
65.9% of students at South Iron High are eligible for free lunch, compared to the Missouri average of 46.1%.
The largest demographic group at South Iron High is White at 84.1% of enrollment, in Annapolis, MO.
South Iron High has a Resource Investment Index of 61/100 (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).
South Iron High earns 61/100 on the Resource Investment Index, with class sizes smaller than 83% 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.
Besides South Iron High, South Iron Co. R-I also operates South Iron Elem. (139 students). See the South Iron Co. 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, “South Iron High, Annapolis 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/south-iron-high-mo
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