Enrollment
303
Connecticut · 2024-25 NCES data
Elementary school (grades K-5) · Oakville, CT
Federal NCES profile for Polk School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 55/100.
The verdict
Polk School earns 55/100 on the Resource Investment Index, with class sizes near the Connecticut median.
Polk School has class sizes near the Connecticut median. Computed live against every Connecticut school reporting to NCES.
By Resource Investment Index, Polk School ranks #1 of 3 public schools in Oakville, CT.
NCES ID 090489001005 Verify on NCES CCD record →
Enrollment
303
Connecticut · 2024-25 NCES data
Teachers (FTE)
24.0
Federal CCD staff survey
Students per teacher
12.6:1
vs 12.1:1 Connecticut avg
+4% vs state
Free-lunch eligible
30.8%
vs 36.4% Connecticut avg
-15% vs state
How Polk School compares with Connecticut and U.S. medians
Slightly above state median
12.6:1 - 0.5 above the Connecticut state median of 12.1:1, indicating larger average class loads than typical schools in the state.
Polk School is a mid-sized elementary school in Oakville, Connecticut, enrolling 303 students.
Class loads run somewhat heavier than typical: 12.6:1 puts it in the larger third of Connecticut schools by student-teacher ratio.
Its free-meal eligibility rate of 30.8% lands close to the Connecticut typical range, neither a high- nor low-need campus by this measure.
Enrollment of 303 puts it in the smaller third of Connecticut schools by headcount.
Its Resource Investment Index lands in the upper third of 1,003 scored Connecticut schools.
Against 224 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #74.
Its student body is led by White (69%) and Hispanic or Latino (16%) (diversity index 49/100).
Attendance holds up well here: only 6.3% of students were chronically absent, below the typical post-pandemic national figure.
Watertown School District also operates Watertown High School (693 students) and John Trumbull Primary School (610 students) alongside Polk 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
Polk School on the metrics families compare, against Connecticut and U.S. means.
| Metric | This school | vs Connecticut | Connecticut avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 12.6:1 | ▲ 4% | 12.1:1 | 15.7:1 |
| Free-lunch eligible | 30.8% | ▼ 15% | 36.4% | 51.7% |
| Enrollment | 303 | top 75% | - | - |
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 69.0% of enrollment.
Simpson diversity index - at 48.9, Polk School is about as mixed as the Connecticut school average of 50.5.
District-wide per-pupil expenditure for Watertown School District, which includes Polk 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 |
|---|---|---|---|
| Watertown High School | Larger | Similar economic need | Lower S:T ratio |
| John Trumbull Primary School | Larger | Similar economic need | Similar S:T ratio |
| Swift Middle School | Larger | Similar economic need | Similar S:T ratio |
| Fletcher W. Judson School | Similar size | Similar economic need | Higher S:T ratio |
Comparisons are relative to Polk School's own figures; each column derives from NCES Common Core of Data.
Matched by enrollment size and by staffing ratio across all of Connecticut, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Polk 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.
Polk School has 303 students enrolled. It is an elementary school in Oakville, CT.
The student-teacher ratio at Polk School is 12.6:1, which is 4% higher than the Connecticut average of 12.1:1 and 20% lower than the national average of 15.7:1.
30.8% of students at Polk School are eligible for free lunch, compared to the Connecticut average of 36.4%.
The largest demographic group at Polk School is White at 69.0% of enrollment, in Oakville, CT.
Polk School has a Resource Investment Index of 55/100 (higher reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Polk School ranks #1 of 3 public schools in Oakville, CT. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Oakville on the city page.
Polk School earns 55/100 on the Resource Investment Index, with class sizes near the Connecticut 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 Polk School, Watertown School District also operates Watertown High School (693 students), John Trumbull Primary School (610 students), and Swift Middle School (591 students). See the Watertown 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, “Polk School, Oakville CT.” 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/polk-school-ct
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