Enrollment
440
Connecticut · 2024-25 NCES data
Other / mixed grade configuration · Columbia, CT
Federal NCES profile for Horace W. Porter School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 70/100.
The verdict
Horace W. Porter School earns 70/100 on the Resource Investment Index, with class sizes near the Connecticut median.
Horace W. Porter School has class sizes near the Connecticut median. Computed live against every Connecticut school reporting to NCES.
NCES ID 090090000139 Verify on NCES CCD record →
Enrollment
440
Connecticut · 2024-25 NCES data
Teachers (FTE)
41.0
Federal CCD staff survey
Students per teacher
10.7:1
vs 12.1:1 Connecticut avg
-12% vs state
Free-lunch eligible
17.5%
vs 36.4% Connecticut avg
-52% vs state
How Horace W. Porter School compares with Connecticut and U.S. medians
Horace W. Porter School is a lower-poverty, mid-sized combined-grade school in Columbia, Connecticut, enrolling 440 students.
Class sizes run a bit leaner than typical: 10.7:1 puts it in the smaller third of Connecticut schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 17.5% of students eligible for free meals.
With 440 students, its enrollment sits close to the Connecticut median campus size.
Its Resource Investment Index outscores 98% of the 1,003 Connecticut schools with a score on record, a top-tier result on this measure.
Among 300 similarly sized, similarly resourced-need Connecticut schools statewide, it ranks #2, a top-tier result once campus size and economic need are matched.
Its student body is predominantly White (83% of enrollment) (diversity index 29/100).
Counselor coverage is strong, about 147 students per counselor, inside the American School Counselor Association's recommended 250:1.
Attendance holds up well here: only 7.0% of students were chronically absent, below the typical post-pandemic national figure.
Columbia School District operates only this one school, so Horace W. Porter 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
Horace W. Porter 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 | 10.7:1 | ▼ 12% | 12.1:1 | 15.7:1 |
| Free-lunch eligible | 17.5% | ▼ 52% | 36.4% | 51.7% |
| Enrollment | 440 | top 44% | - | - |
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 83.4% of enrollment.
Simpson diversity index - at 29.1, Horace W. Porter School is less mixed than the Connecticut school average of 50.5.
District-wide per-pupil expenditure for Columbia School District, which includes Horace W. Porter 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 Horace W. Porter 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.
Horace W. Porter School has 440 students enrolled. It is a public school in Columbia, CT.
The student-teacher ratio at Horace W. Porter School is 10.7:1, which is 12% lower than the Connecticut average of 12.1:1 and 32% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
17.5% of students at Horace W. Porter School are eligible for free lunch, compared to the Connecticut average of 36.4%.
The largest demographic group at Horace W. Porter School is White at 83.4% of enrollment, in Columbia, CT.
Horace W. Porter School has a Resource Investment Index of 70/100 (higher 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).
Horace W. Porter School earns 70/100 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; Columbia School District operates only Horace W. Porter 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.