- Enrollment
- 1,776
- Students per teacher
- 13.2:1
- Resource Index
- 51/100
Elementary school (grades K-5) · East Hartford, CT
Robert J. O'brien School
Federal NCES profile for Robert J. O'brien School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 50/100.
2024-25 NCES dataElementary school (grades K-5)NCES 090126000206
👥 S:T ratio 52
🌟 Gifted program 70
📋 Attendance 28
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Robert J. O'brien School earns 50/100 on the Resource Investment Index, with class sizes near the Connecticut median.
- #3 of 8
- elementary schools in East Hartford · Resource Index
- 50
- Resource Index · Higher
- 11.9:1
- students per teacher
- 69.5%
- free-lunch eligible
Robert J. O'brien School has class sizes near the Connecticut median. Computed live against every Connecticut school reporting to NCES.
By Resource Investment Index, Robert J. O'brien School ranks #3 of 8 elementary schools in East Hartford, CT.
School address
District: East Hartford School District · Connecticut
NCES ID 090126000206 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-2 students YoY
Robert J. O'brien School held near 339 students from 2022-23 to 2023-24 (-2 headcount).
Teacher FTE lost 29.7 → 27.6 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-2 students YoY 090126000206 · East Hartford, CT Elementary · SMALL · TRAD
344 enr · 11.9:1 · 69.5% lunch · RII 50
Nearest enrollment peer: East Hartford High School (1,776 students)
Robert J. O'brien School held near 339 students from 2022-23 to 2023-24 (-2 headcount). Teacher FTE lost 29.7 → 27.6 across the same CCD years. Read with this school → · District book → · Connecticut schools → · Find another →
Robert J. O'brien School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- East Hartford
East Hartford High School
1,776 students
- East Hartford
East Hartford Middle School
971 students
- Dr. Thomas S. 519
Dr. Thomas S. O'connell School
519 students
- Governor Willi 345
Governor William Pitkin School
345 students
- This school 344
Robert J. O'brien School
344 students
- Joseph O. Good 334
Joseph O. Goodwin School
334 students
What this shows Robert J. O'brien School reports 344 students on the CCD universe file.
How Robert J. O'brien School compares
Robert J. O'brien 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 | 11.9:1 | ▼ 2% | 12.1:1 | 15.7:1 |
| Free-lunch eligible | 69.5% | ▲ 91% | 36.4% | 51.7% |
| Enrollment | 344 | top 65% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
11.9:1
Leaner classes than 76% of US schools, among the more generously staffed nationally.
344
Bigger than 39% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
69.5%
free-lunch eligible
- 91% above the Connecticut average of 36.4%
Well above the 40% Title I schoolwide threshold, among the highest-need profiles in the state; federal funds support the whole school, not individual students.
Staffing depth
11.9:1
students per teacher
- 2% below state mean
Top 56% in Connecticut - lower ratio than 44% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
28.8%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$23,806
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
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
6
in-school suspensions + 2 out-of-school
Suspension rate: 1.7 per 100 students. Combined in-school and out-of-school rate: 2.3 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
Hispanic or Latino 61.3%
African American 32.8%
White 3.5%
Asian 2.0%
Two or More 0.3%
Largest group: Hispanic or Latino at 61.3% of enrollment.
Student-body diversity index 51.5/100
Simpson diversity index - at 51.5, Robert J. O'brien School is about as mixed as the Connecticut school average of 50.5.
Programs
Gifted & talented Yes
District finance for East Hartford School District reports $23,806 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Robert J. O'brien School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| East Hartford High School | Larger | Lower economic need | Similar S:T ratio |
| East Hartford Middle School | Larger | Similar economic need | Similar S:T ratio |
| Dr. Thomas S. O'connell School | Larger | Lower economic need | Similar S:T ratio |
| Governor William Pitkin School | Similar size | Lower economic need | Similar S:T ratio |
| Joseph O. Goodwin School | Similar size | Similar economic need | Similar S:T ratio |
Comparisons are relative to Robert J. O'brien School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 971
- Students per teacher
- 11:1
- Resource Index
- 25/100
- Enrollment
- 519
- Students per teacher
- 13:1
- Resource Index
- 58/100
- Enrollment
- 345
- Students per teacher
- 11.9:1
- Resource Index
- 60/100
- Enrollment
- 334
- Students per teacher
- 12.4:1
- Resource Index
- 42/100
Similar elementary schools in East Hartford
6 comparable elementary schools (grades K-5) serving the same city.
Dr. Thomas S. O'connell School
Standard public school
519 students 13:1 students per teacher
Governor William Pitkin School
Standard public school
345 students 11.9:1 students per teacher
Joseph O. Goodwin School
Standard public school
334 students 12.4:1 students per teacher
Dr. John a. Langford School
Standard public school
316 students 11.7:1 students per teacher
Dr. Franklin H. Mayberry School
Standard public school
310 students 11.1:1 students per teacher
Anna E. Norris School
Standard public school
279 students 11.2:1 students per teacher
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 (~344 students)
Frequently asked questions about Robert J. O'brien School
How many students attend Robert J. O'brien School?
Robert J. O'brien School has 344 students enrolled. It is an elementary school in East Hartford, CT. CCD year-over-year: 341 (2022-23) → 339 (2023-24), nearly flat (-2).
What is the student-teacher ratio at Robert J. O'brien School?
The student-teacher ratio at Robert J. O'brien School is 11.9:1, which is 2% lower than the Connecticut average of 12.1:1 and 24% 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 Robert J. O'brien School?
69.5% of students at Robert J. O'brien School are eligible for free lunch, compared to the Connecticut average of 36.4%.
What is the racial and ethnic makeup of Robert J. O'brien School?
The largest demographic group at Robert J. O'brien School is Hispanic or Latino at 61.3% of enrollment, in East Hartford, CT. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 51.5/100.
What is the Resource Investment Index for Robert J. O'brien School?
Robert J. O'brien School has a Resource Investment Index of 50/100 (higher reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, gifted-program reporting, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Robert J. O'brien School rank among elementary schools in East Hartford?
By Resource Investment Index, Robert J. O'brien School ranks #3 of 8 elementary schools in East Hartford, 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 East Hartford on the city page.
What other schools are in East Hartford School District?
Besides Robert J. O'brien School, East Hartford School District also operates East Hartford High School (1,776 students), East Hartford Middle School (971 students), and Dr. Thomas S. O'connell School (519 students). See the East Hartford School District district page for the complete list.