- Enrollment
- 946
- Students per teacher
- 11.1:1
- Resource Index
- 54/100
Elementary school (grades K-5) · Avon, CT
Thompson Brook School
Federal NCES profile for Thompson Brook School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 38/100.
2024-25 NCES dataElementary school (grades K-5)NCES 090012001367
👥 S:T ratio 45
🌟 Gifted program 30
🎓 Counselors 1
📋 Attendance 76
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Thompson Brook School earns 38/100 on the Resource Investment Index, with class sizes larger than 83% of Connecticut schools.
- #3 of 3
- elementary schools in Avon · Resource Index
- 38
- Resource Index · Typical
- 13.8:1
- large classes for Connecticut
- 9.0%
- free-lunch eligible
Thompson Brook School has class sizes larger than 83% of Connecticut schools. Computed live against every Connecticut school reporting to NCES.
By Resource Investment Index, Thompson Brook School ranks #3 of 3 elementary schools in Avon, CT.
School address
District: Avon School District · Connecticut
NCES ID 090012001367 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-16 students YoY
Thompson Brook School held near 440 students from 2022-23 to 2023-24 (-16 headcount).
Teacher FTE lost 36.8 → 33.3 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-16 students YoY 090012001367 · Avon, CT Elementary · SMALL · TRAD
497 enr · 13.8:1 · 9.0% lunch · RII 38
Nearest enrollment peer: Avon High School (946 students)
Thompson Brook School held near 440 students from 2022-23 to 2023-24 (-16 headcount). Teacher FTE lost 36.8 → 33.3 across the same CCD years. Read with this school → · District book → · Connecticut schools → · Find another →
Thompson Brook School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Avon High Scho
Avon High School
946 students
- Pine Grove Sch
Pine Grove School
613 students
- This school
Thompson Brook School
497 students
- Avon Middle Sc
Avon Middle School
461 students
- Roaring Brook
Roaring Brook School
461 students
What this shows Thompson Brook School reports 497 students on the CCD universe file.
How Thompson Brook School compares
Thompson Brook School held steady on CCD headcount: ratios and free-lunch share vs Connecticut and U.S. means.
| Metric | This school | vs Connecticut | Connecticut avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 13.8:1 | ▲ 14% | 12.1:1 | 15.7:1 |
| Free-lunch eligible | 9.0% | ▼ 75% | 36.4% | 51.7% |
| Enrollment | 497 | top 33% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
13.8:1
Leaner classes than 59% of US schools, a middle-of-the-pack class size.
497
Bigger than 61% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
9.0%
free-lunch eligible
- 75% below the Connecticut average of 36.4%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
13.8:1
students per teacher
- 14% above state mean
Top 83% in Connecticut - lower ratio than 17% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
9.5%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$23,764
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 497 students, the combined health-and-guidance staffing load for this school.
Discipline context
18
in-school suspensions + 2 out-of-school
Suspension rate: 3.6 per 100 students. Combined in-school and out-of-school rate: 4.0 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 61.6%
Asian 19.1%
Hispanic or Latino 7.8%
Two or More 5.8%
African American 5.4%
Native Hawaiian / Pacific Islander 0.2%
Largest group: White at 61.6% of enrollment.
Student-body diversity index 57.2/100
Simpson diversity index - at 57.2, Thompson Brook School is more mixed than the Connecticut school average of 50.5.
Programs
District finance for Avon School District reports $23,764 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Thompson Brook School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Avon High School | Larger | Similar economic need | Lower S:T ratio |
| Pine Grove School | Similar size | Similar economic need | Similar S:T ratio |
| Avon Middle School | Similar size | Similar economic need | Lower S:T ratio |
| Roaring Brook School | Similar size | Similar economic need | Similar S:T ratio |
Comparisons are relative to Thompson Brook School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 613
- Students per teacher
- 14.3:1
- Resource Index
- 48/100
- Enrollment
- 461
- Students per teacher
- 10.7:1
- Resource Index
- 53/100
- Enrollment
- 461
- Students per teacher
- 12.5:1
- Resource Index
- 50/100
Similar elementary schools in Avon
2 comparable elementary schools (grades K-5) serving the same city.
Nationwide elementary 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 (~497 students)
Frequently asked questions about Thompson Brook School
How many students attend Thompson Brook School?
Thompson Brook School has 497 students enrolled. It is an elementary school in Avon, CT. CCD year-over-year: 456 (2022-23) → 440 (2023-24), nearly flat (-16).
What is the student-teacher ratio at Thompson Brook School?
The student-teacher ratio at Thompson Brook School is 13.8:1, which is 14% higher than the Connecticut average of 12.1:1 and 12% lower than the national average of 15.7:1.
What percentage of students receive free lunch at Thompson Brook School?
9.0% of students at Thompson Brook School are eligible for free lunch, compared to the Connecticut average of 36.4%.
What is the racial and ethnic makeup of Thompson Brook School?
The largest demographic group at Thompson Brook School is White at 61.6% of enrollment, in Avon, CT. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 57.2/100.
What is the Resource Investment Index for Thompson Brook School?
Thompson Brook School has a Resource Investment Index of 38/100 (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 Thompson Brook School rank among elementary schools in Avon?
By Resource Investment Index, Thompson Brook School ranks #3 of 3 elementary schools in Avon, CT. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Avon on the city page.
What other schools are in Avon School District?
Besides Thompson Brook School, Avon School District also operates Avon High School (946 students), Pine Grove School (613 students), and Avon Middle School (461 students). See the Avon School District district page for the complete list.