Enrollment
307
Connecticut · 2024-25 NCES data
Other / mixed grade configuration · Centerbrook, CT
Federal NCES profile for Essex Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 67/100.
The verdict
Essex Elementary School earns 67/100 on the Resource Investment Index, with class sizes near the Connecticut median.
Essex Elementary School has class sizes near the Connecticut median. Computed live against every Connecticut school reporting to NCES.
NCES ID 090150000255 Verify on NCES CCD record →
Enrollment
307
Connecticut · 2024-25 NCES data
Teachers (FTE)
25.0
Federal CCD staff survey
Students per teacher
12.3:1
vs 12.1:1 Connecticut avg
+2% vs state
Free-lunch eligible
18.3%
vs 36.4% Connecticut avg
-50% vs state
How Essex Elementary School compares with Connecticut and U.S. medians
Essex Elementary School is a lower-poverty, mid-sized combined-grade school in Centerbrook, Connecticut, enrolling 307 students.
Class loads run somewhat heavier than typical: 12.3:1 puts it in the larger third of Connecticut schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 18.3% of students eligible for free meals.
Enrollment of 307 puts it in the smaller third of Connecticut schools by headcount.
Its Resource Investment Index outscores 94% of the 1,003 Connecticut schools with a score on record, a top-tier result on this measure.
Among 251 similarly sized, similarly resourced-need Connecticut schools statewide, it ranks #10, a top-tier result once campus size and economic need are matched.
Its student body is predominantly White (83% of enrollment) (diversity index 30/100).
Attendance holds up well here: only 7.5% of students were chronically absent, below the typical post-pandemic national figure.
The surrounding Essex School District spends $29,927 per pupil, 25% above the Connecticut average, a better-resourced district than most.
Essex School District operates only this one school, so Essex Elementary School has no district-mates to compare against locally.
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
Essex Elementary 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 | 12.3:1 | ▲ 2% | 12.1:1 | 15.7:1 |
| Free-lunch eligible | 18.3% | ▼ 50% | 36.4% | 51.7% |
| Enrollment | 307 | top 74% | - | - |
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 82.7% of enrollment.
Simpson diversity index - at 30.0, Essex Elementary School is less mixed than the Connecticut school average of 50.5.
District-wide per-pupil expenditure for Essex School District, which includes Essex Elementary 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.
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 Essex Elementary 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.
Essex Elementary School has 307 students enrolled. It is a public school in Centerbrook, CT.
The student-teacher ratio at Essex Elementary School is 12.3:1, which is 2% higher than the Connecticut average of 12.1:1 and 22% lower than the national average of 15.7:1.
18.3% of students at Essex Elementary School are eligible for free lunch, compared to the Connecticut average of 36.4%.
The largest demographic group at Essex Elementary School is White at 82.7% of enrollment, in Centerbrook, CT.
Essex Elementary School has a Resource Investment Index of 67/100 (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).
Essex Elementary School earns 67/100 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.
None reported; Essex School District operates only Essex Elementary School as a public school district in NCES's records.
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.