Enrollment
241
Iowa · 2024-25 NCES data
Other / mixed grade configuration · Paullina, IA
Federal NCES profile for South O'brien Secondary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 56/100.
The verdict
South O'brien Secondary School earns 56/100 on the Resource Investment Index, with class sizes smaller than 76% of Iowa schools.
South O'brien Secondary School has class sizes smaller than 76% of Iowa schools. Computed live against every Iowa school reporting to NCES.
NCES ID 190002601341 Verify on NCES CCD record →
Enrollment
241
Iowa · 2024-25 NCES data
Teachers (FTE)
20.0
Federal CCD staff survey
Students per teacher
12.1:1
vs 14.8:1 Iowa avg
-18% vs state
Free-lunch eligible
25.0%
vs 36.4% Iowa avg
-31% vs state
How South O'brien Secondary School compares with Iowa and U.S. medians
Smaller classes than state median
12.1:1 - 2.7 below the Iowa state median of 14.8:1, indicating smaller average class loads than typical schools in the state.
South O'brien Secondary School is a mid-sized combined-grade school in Paullina, Iowa, enrolling 241 students.
Class sizes run a bit leaner than typical: 12.1:1 puts it in the smaller third of Iowa schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 25.0% of students eligible for free meals.
Enrollment of 241 puts it in the smaller third of Iowa schools by headcount.
Its Resource Investment Index lands in the upper third of 1,322 scored Iowa schools.
Against 383 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #99.
Its student body is predominantly White (91% of enrollment) (diversity index 17/100).
Counselor coverage is strong, about 241 students per counselor, inside the American School Counselor Association's recommended 250:1.
Attendance runs somewhat below the norm, with 19.9% of students chronically absent per the 2021-22 civil-rights collection.
Its district, South O'brien Comm School District, also runs South O'brien Elem Sch Primghar Center (328 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 O'brien Secondary School on the metrics families compare, against Iowa and U.S. means.
| Metric | This school | vs Iowa | Iowa avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 12.1:1 | ▼ 18% | 14.8:1 | 15.7:1 |
| Free-lunch eligible | 25.0% | ▼ 31% | 36.4% | 51.7% |
| Enrollment | 241 | top 67% | - | - |
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 90.9% of enrollment.
Simpson diversity index - at 16.9, South O'brien Secondary School is less mixed than the Iowa school average of 33.8.
District-wide per-pupil expenditure for South O'brien Comm School District, which includes South O'brien Secondary School.
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 O'brien Elem Sch Primghar Center | Larger | Similar economic need | Higher S:T ratio |
Comparisons are relative to South O'brien Secondary School's own figures; each column derives from NCES Common Core of Data.
Matched by enrollment size and by staffing ratio across all of Iowa, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on South O'brien Secondary School'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 O'brien Secondary School has 241 students enrolled. It is a public school in Paullina, IA.
The student-teacher ratio at South O'brien Secondary School is 12.1:1, which is 18% lower than the Iowa average of 14.8:1 and 23% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
25.0% of students at South O'brien Secondary School are eligible for free lunch, compared to the Iowa average of 36.4%.
The largest demographic group at South O'brien Secondary School is White at 90.9% of enrollment, in Paullina, IA.
South O'brien Secondary School has a Resource Investment Index of 56/100 (higher reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
South O'brien Secondary School earns 56/100 on the Resource Investment Index, with class sizes smaller than 76% of Iowa 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 O'brien Secondary School, South O'brien Comm School District also operates South O'brien Elem Sch Primghar Center (328 students). See the South O'brien Comm School District 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 O'brien Secondary School, Paullina IA.” 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-obrien-secondary-school-ia
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