Enrollment
469
Iowa · 2024-25 NCES data
Middle school (grades 6-8) · Waterloo, IA
Federal NCES profile for Central Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 42/100.
The verdict
Central Middle School earns 42/100 on the Resource Investment Index, with class sizes near the Iowa median. It is also more racially and ethnically mixed than most Iowa schools.
Central Middle School has class sizes near the Iowa median. Computed live against every Iowa school reporting to NCES.
By Resource Investment Index, Central Middle School ranks #3 of 3 middle schools in Waterloo, IA.
NCES ID 193048002024 Verify on NCES CCD record →
Enrollment
469
Iowa · 2024-25 NCES data
Teachers (FTE)
35.0
Federal CCD staff survey
Students per teacher
13.4:1
vs 14.8:1 Iowa avg
-9% vs state
Free-lunch eligible
76.6%
vs 36.4% Iowa avg
+110% vs state
How Central Middle School compares with Iowa and U.S. medians
At or below state median
13.4:1 - 1.4 below the Iowa state median of 14.8:1, indicating smaller average class loads than typical schools in the state.
Central Middle School is a high-poverty, mid-sized middle school in Waterloo, Iowa, enrolling 469 students.
At 13.4:1, its student-teacher ratio sits close to the Iowa median, within a few percentage points of the 14.8:1 state norm, neither notably crowded nor notably small.
Economic need is high: 76.6% of students qualify for free meals, 110% above the Iowa average, a Title I-weighted population that federal funding formulas prioritise.
Enrollment of 469 puts it in the larger third of Iowa schools by headcount.
Its Resource Investment Index lands in the lower third of 1,322 scored Iowa schools.
Against 70 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #22.
Its student body is led by African American (34%) and White (26%), more mixed than most schools in the state (diversity index 77/100).
Counselor coverage is strong, about 235 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 56.7% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 20.1% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Discipline events run high: 434 in- and out-of-school suspensions were reported for 469 students in the 2021-22 Civil Rights Data Collection.
Among Waterloo's middle schools, it stands alongside Hoover Middle School (848 students): Central Middle School is smaller than that campus by headcount and runs leaner classes (13.4:1 vs 15.1:1).
Waterloo Comm School District also operates West High School (1,696 students) and East High School (1,016 students) alongside Central Middle 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
Central Middle 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 | 13.4:1 | ▼ 9% | 14.8:1 | 15.7:1 |
| Free-lunch eligible | 76.6% | ▲ 110% | 36.4% | 51.7% |
| Enrollment | 469 | top 22% | - | - |
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: African American at 34.1% of enrollment.
Simpson diversity index - at 77.0, Central Middle School is more mixed than the Iowa school average of 33.8.
District-wide per-pupil expenditure for Waterloo Comm School District, which includes Central Middle 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 |
|---|---|---|---|
| West High School | Larger | Lower economic need | Higher S:T ratio |
| East High School | Larger | Lower economic need | Higher S:T ratio |
| Hoover Middle School | Larger | Lower economic need | Higher S:T ratio |
| Kittrell Elementary School | Similar size | Lower economic need | Similar S:T ratio |
| Expo Alternative Learning Center | Similar size | Similar economic need | Higher S:T ratio |
Comparisons are relative to Central Middle School's own figures; each column derives from NCES Common Core of Data.
2 comparable middle schools (grades 6-8) serving the same city.
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 Central Middle 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.
Central Middle School has 469 students enrolled. It is a middle school in Waterloo, IA.
The student-teacher ratio at Central Middle School is 13.4:1, which is 9% lower than the Iowa average of 14.8:1 and 15% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
76.6% of students at Central Middle School are eligible for free lunch, compared to the Iowa average of 36.4%.
The largest demographic group at Central Middle School is African American at 34.1% of enrollment, in Waterloo, IA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 77.0/100.
Central Middle School has a Resource Investment Index of 42/100 (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).
By Resource Investment Index, Central Middle School ranks #3 of 3 middle schools in Waterloo, IA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Waterloo on the city page.
Central Middle School earns 42/100 on the Resource Investment Index, with class sizes near the Iowa median. It is also more racially and ethnically mixed than most 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 Central Middle School, Waterloo Comm School District also operates West High School (1,696 students), East High School (1,016 students), and Hoover Middle School (848 students). See the Waterloo 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, “Central Middle School, Waterloo 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/central-middle-school-ia
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