Enrollment
270
Iowa · 2024-25 NCES data
High school (grades 9-12) · Eldon, IA
Federal NCES profile for Cardinal High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 46/100.
The verdict
Cardinal High School earns 46/100 on the Resource Investment Index, with class sizes near the Iowa median.
Cardinal High School has class sizes near the Iowa median. Computed live against every Iowa school reporting to NCES.
By Resource Investment Index, Cardinal High School ranks #1 of 3 public schools in Eldon, IA.
NCES ID 190624000211 Verify on NCES CCD record →
Enrollment
270
Iowa · 2024-25 NCES data
Teachers (FTE)
21.0
Federal CCD staff survey
Students per teacher
12.9:1
vs 14.8:1 Iowa avg
-13% vs state
Free-lunch eligible
42.8%
vs 36.4% Iowa avg
+18% vs state
How Cardinal High School compares with Iowa and U.S. medians
At or below state median
12.9:1 - 1.9 below the Iowa state median of 14.8:1, indicating smaller average class loads than typical schools in the state.
Cardinal High School is a mid-sized high school in Eldon, Iowa, enrolling 270 students.
Class sizes run a bit leaner than typical: 12.9:1 puts it in the smaller third of Iowa schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 42.8% of students eligible for free meals.
With 270 students, its enrollment sits close to the Iowa median campus size.
Its Resource Investment Index outscores 90% of the 1,322 Iowa schools with a score on record, a top-tier result on this measure.
Among 357 similarly sized, similarly resourced-need Iowa schools statewide, it ranks #28, a top-tier result once campus size and economic need are matched.
Its student body is predominantly White (92% of enrollment) (diversity index 16/100).
No Advanced Placement courses are reported for this campus in the federal data.
17.0% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Cardinal Comm School District also operates Cardinal Elementary (495 students) and Cardinal Junior High (314 students) alongside Cardinal High School.
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
Cardinal High 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 | 12.9:1 | ▼ 13% | 14.8:1 | 15.7:1 |
| Free-lunch eligible | 42.8% | ▲ 18% | 36.4% | 51.7% |
| Enrollment | 270 | top 60% | - | - |
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 91.5% of enrollment.
Simpson diversity index - at 15.9, Cardinal High School is less mixed than the Iowa school average of 33.8.
District-wide per-pupil expenditure for Cardinal Comm School District, which includes Cardinal High 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 |
|---|---|---|---|
| Cardinal Elementary | Larger | Higher economic need | Similar S:T ratio |
| Cardinal Junior High | Similar size | Similar economic need | Higher S:T ratio |
Comparisons are relative to Cardinal High 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 Cardinal High 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.
Cardinal High School has 270 students enrolled. It is a high school in Eldon, IA.
The student-teacher ratio at Cardinal High School is 12.9:1, which is 13% lower than the Iowa average of 14.8:1 and 18% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
42.8% of students at Cardinal High School are eligible for free lunch, compared to the Iowa average of 36.4%.
The largest demographic group at Cardinal High School is White at 91.5% of enrollment, in Eldon, IA.
Cardinal High School has a Resource Investment Index of 46/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Cardinal High School ranks #1 of 3 public schools in Eldon, IA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Eldon on the city page.
Cardinal High School earns 46/100 on the Resource Investment Index, with class sizes near the Iowa 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 Cardinal High School, Cardinal Comm School District also operates Cardinal Elementary (495 students) and Cardinal Junior High (314 students). See the Cardinal 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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Last updated:
PlainSchools, “Cardinal High School, Eldon 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/cardinal-high-school-ia
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