- Enrollment
- 307
- Students per teacher
- 9.3:1
- Resource Index
- 56/100
Other / mixed grade configuration · Thomaston, CT
Black Rock School
Federal NCES profile for Black Rock School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 48/100.
2024-25 NCES dataOther / mixed grade configurationNCES 090450000906
👥 S:T ratio 58
🌟 Gifted program 30
🎓 Counselors 48
📋 Attendance 55
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Black Rock School earns 48/100 on the Resource Investment Index, with class sizes smaller than 74% of Connecticut schools.
- #3 of 3
- public schools in Thomaston · Resource Index
- 48
- Resource Index · Typical
- 10.4:1
- small classes for Connecticut
- 31.5%
- free-lunch eligible
Black Rock School has class sizes smaller than 74% of Connecticut schools. Computed live against every Connecticut school reporting to NCES.
By Resource Investment Index, Black Rock School ranks #3 of 3 public schools in Thomaston, CT.
School address
District: Thomaston School District · Connecticut
NCES ID 090450000906 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-24 students YoY
Black Rock School shrank from 292 students in 2022-23 to 268 in 2023-24 (-8.2%).
Teacher FTE lost 25.8 → 22.1 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Shrinking CCD campus
-24 students YoY 090450000906 · Thomaston, CT Other · SMALL · TRAD
259 enr · 10.4:1 · 31.5% lunch · RII 48
Nearest enrollment peer: Thomaston High School (307 students)
Black Rock School shrank from 292 students in 2022-23 to 268 in 2023-24 (-8.2%). Teacher FTE lost 25.8 → 22.1 across the same CCD years. Read with this school → · District book → · Connecticut schools → · Find another →
Black Rock School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Thomaston High
Thomaston High School
307 students
- This school
Black Rock School
259 students
- Thomaston Cent
Thomaston Center School
196 students
What this shows Black Rock School reports 259 students on the CCD universe file.
How Black Rock School compares
Black Rock School is a shrinking campus on CCD: ratios and free-lunch share vs Connecticut and U.S. means.
| Metric | This school | vs Connecticut | Connecticut avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 10.4:1 | ▼ 14% | 12.1:1 | 15.7:1 |
| Free-lunch eligible | 31.5% | ▼ 13% | 36.4% | 51.7% |
| Enrollment | 259 | top 84% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
10.4:1
Leaner classes than 87% of US schools, among the more generously staffed nationally.
259
Bigger than 27% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
31.5%
free-lunch eligible
- 13% below the Connecticut average of 36.4%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
10.4:1
students per teacher
- 14% below state mean
Top 26% in Connecticut - lower ratio than 74% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
18.1%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$24,185
per pupil, district-wide
- below Connecticut avg of $24,680
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors1.0 FTE
Per 259 students, the combined health-and-guidance staffing load for this school.
Discipline context
2
in-school suspensions + 5 out-of-school
Suspension rate: 0.8 per 100 students. Combined in-school and out-of-school rate: 2.7 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 76.8%
Hispanic or Latino 14.7%
Asian 3.1%
Two or More 3.1%
African American 2.3%
Largest group: White at 76.8% of enrollment.
Student-body diversity index 38.6/100
Simpson diversity index - at 38.6, Black Rock School is less mixed than the Connecticut school average of 50.5.
Programs
District finance for Thomaston School District reports $24,185 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Black Rock School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Thomaston High School | Similar size | Similar economic need | Similar S:T ratio |
| Thomaston Center School | Similar size | Similar economic need | Higher S:T ratio |
Comparisons are relative to Black Rock School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 196
- Students per teacher
- 15.1:1
- Resource Index
- 52/100
Similar other schools in Thomaston
1 comparable other schools (grades Mixed) serving the same city.
Nationwide other schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~259 students)
Frequently asked questions about Black Rock School
How many students attend Black Rock School?
Black Rock School has 259 students enrolled. It is a public school in Thomaston, CT. CCD year-over-year: 292 (2022-23) → 268 (2023-24), down 24.
What is the student-teacher ratio at Black Rock School?
The student-teacher ratio at Black Rock School is 10.4:1, which is 14% lower than the Connecticut average of 12.1:1 and 34% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Black Rock School?
31.5% of students at Black Rock School are eligible for free lunch, compared to the Connecticut average of 36.4%.
What is the racial and ethnic makeup of Black Rock School?
The largest demographic group at Black Rock School is White at 76.8% of enrollment, in Thomaston, CT.
What is the Resource Investment Index for Black Rock School?
Black Rock School has a Resource Investment Index of 48/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Black Rock School rank among public schools in Thomaston?
By Resource Investment Index, Black Rock School ranks #3 of 3 public schools in Thomaston, CT. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking.
What other schools are in Thomaston School District?
Besides Black Rock School, Thomaston School District also operates Thomaston High School (307 students) and Thomaston Center School (196 students). See the Thomaston School District district page for the complete list.