- Enrollment
- 1,650
- Students per teacher
- 11.5:1
- Resource Index
- 54/100
Other / mixed grade configuration · Bronx, NY
Ps 121 Throop
Federal NCES profile for Ps 121 Throop, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 18/100.
2024-25 NCES dataOther / mixed grade configurationNCES 360008802450
👥 S:T ratio 35
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Ps 121 Throop earns 18/100 on the Resource Investment Index, with class sizes larger than 92% of New York schools. It is also more racially and ethnically mixed than most New York schools.
- #174 of 184
- schools in Bronx · Resource Index
- 18
- Resource Index · Lower
- 16.2:1
- large classes for New York
- 76.1%
- free-lunch eligible
Ps 121 Throop has class sizes larger than 92% of New York schools. Computed live against every New York school reporting to NCES.
By Resource Investment Index, Ps 121 Throop ranks #174 of 184 schools in Bronx, NY.
School address
District: New York City Geographic District #11 · New York
NCES ID 360008802450 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+16 students YoY
Ps 121 Throop held near 573 students from 2022-23 to 2023-24 (+16 headcount).
Teacher FTE added 37.7 → 38.1 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+16 students YoY 360008802450 · Bronx, NY Other · MID · TRAD
601 enr · 16.2:1 · 76.1% lunch · RII 18
Nearest enrollment peer: Harry S Truman High School (1,650 students)
Ps 121 Throop held near 573 students from 2022-23 to 2023-24 (+16 headcount). Teacher FTE added 37.7 → 38.1 across the same CCD years. Read with this school → · District book → · New York schools → · Find another →
Ps 121 Throop in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Harry S Truman
Harry S Truman High School
1,650 students
- Ps 83 Donald H
Ps 83 Donald Hertz
1,451 students
- Ps 89
Ps 89
1,169 students
- Ps/Ms 194
Ps/Ms 194
1,169 students
- Ps 96 Richard
Ps 96 Richard Rodgers
880 students
- This school 601
Ps 121 Throop
601 students
What this shows Ps 121 Throop reports 601 students on the CCD universe file.
How Ps 121 Throop compares
Ps 121 Throop held steady on CCD headcount: ratios and free-lunch share vs New York and U.S. means.
| Metric | This school | vs New York | New York avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 16.2:1 | ▲ 37% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 76.1% | ▲ 35% | 56.2% | 51.7% |
| Enrollment | 601 | top 26% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
16.2:1
Leaner classes than 36% of US schools, a middle-of-the-pack class size.
601
Bigger than 73% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
76.1%
free-lunch eligible
- 35% above the New York average of 56.2%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
16.2:1
students per teacher
- 37% above state mean
Top 92% in New York - lower ratio than 8% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
49.3%
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.
Student demographics
African American 40.3%
Hispanic or Latino 39.3%
Asian 13.0%
White 3.3%
Native Hawaiian / Pacific Islander 2.3%
American Indian / Alaska Native 1.0%
Two or More 0.8%
Largest group: African American at 40.3% of enrollment.
Student-body diversity index 66.4/100
Simpson diversity index - at 66.4, Ps 121 Throop is more mixed than the New York school average of 45.5.
How Ps 121 Throop Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Harry S Truman High School | Larger | Similar economic need | Lower S:T ratio |
| Ps 83 Donald Hertz | Larger | Similar economic need | Lower S:T ratio |
| Ps 89 | Larger | Similar economic need | Lower S:T ratio |
| Ps/Ms 194 | Larger | Similar economic need | Lower S:T ratio |
| Ps 96 Richard Rodgers | Larger | Similar economic need | Lower S:T ratio |
Comparisons are relative to Ps 121 Throop's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,451
- Students per teacher
- 13.3:1
- Resource Index
- 29/100
- Enrollment
- 1,169
- Students per teacher
- 12.6:1
- Resource Index
- 25/100
- Enrollment
- 1,169
- Students per teacher
- 12.2:1
- Resource Index
- 26/100
- Enrollment
- 880
- Students per teacher
- 13.8:1
- Resource Index
- 29/100
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 (~601 students)
Frequently asked questions about Ps 121 Throop
How many students attend Ps 121 Throop?
Ps 121 Throop has 601 students enrolled. It is a public school in Bronx, NY. CCD year-over-year: 557 (2022-23) → 573 (2023-24), nearly flat (+16).
What is the student-teacher ratio at Ps 121 Throop?
The student-teacher ratio at Ps 121 Throop is 16.2:1, which is 37% higher than the New York average of 11.8:1 and 3% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Ps 121 Throop?
76.1% of students at Ps 121 Throop are eligible for free lunch, compared to the New York average of 56.2%.
What is the racial and ethnic makeup of Ps 121 Throop?
The largest demographic group at Ps 121 Throop is African American at 40.3% of enrollment, in Bronx, NY. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 66.4/100.
What is the Resource Investment Index for Ps 121 Throop?
Ps 121 Throop has a Resource Investment Index of 18/100 (lower reported resources relative to schools nationally) based on 2 factors: student-teacher ratio, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology). Limited indicators were available, so the index reflects partial data.
How does Ps 121 Throop rank among schools in Bronx?
By Resource Investment Index, Ps 121 Throop ranks #174 of 184 schools in Bronx, NY. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Bronx on the city page.
What other schools are in New York City Geographic District #11?
Besides Ps 121 Throop, New York City Geographic District #11 also operates Harry S Truman High School (1,650 students), Ps 83 Donald Hertz (1,451 students), and Ps 89 (1,169 students). See the New York City Geographic District #11 district page for the complete list.