- Enrollment
- 5,848
- Students per teacher
- 19.8:1
- Resource Index
- 21/100
Other / mixed grade configuration · Brooklyn, NY
Ps 270 Johann Dekalb
Federal NCES profile for Ps 270 Johann Dekalb, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 23/100.
2024-25 NCES dataOther / mixed grade configurationNCES 360009102784
👥 S:T ratio 47
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Ps 270 Johann Dekalb earns 23/100 on the Resource Investment Index, with class sizes larger than 75% of New York schools. It is also one of the smallest schools in New York.
- #190 of 262
- schools in Brooklyn · Resource Index
- 23
- Resource Index · Lower
- 13.3:1
- large classes for New York
- 83.3%
- free-lunch eligible
Ps 270 Johann Dekalb has class sizes larger than 75% of New York schools. Computed live against every New York school reporting to NCES.
By Resource Investment Index, Ps 270 Johann Dekalb ranks #190 of 262 schools in Brooklyn, NY.
School address
District: New York City Geographic District #13 · New York
NCES ID 360009102784 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+26 students YoY
Ps 270 Johann Dekalb grew from 96 students in 2022-23 to 122 in 2023-24 (+27.1%).
Teacher FTE added 10.0 → 12.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Growing CCD campus
+26 students YoY 360009102784 · Brooklyn, NY Other · SMALL · TRAD
133 enr · 13.3:1 · 83.3% lunch · RII 23
Nearest enrollment peer: Brooklyn Technical High School (5,848 students)
Ps 270 Johann Dekalb grew from 96 students in 2022-23 to 122 in 2023-24 (+27.1%). Teacher FTE added 10.0 → 12.0 across the same CCD years. Read with this school → · District book → · New York schools → · Find another →
Ps 270 Johann Dekalb in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Brooklyn Techn
Brooklyn Technical High School
5,848 students
- Ps 11 Purvis J 923
Ps 11 Purvis J Behan
923 students
- Benjamin Banne 854
Benjamin Banneker Academy
854 students
- Ps 9 Sarah Smi 782
Ps 9 Sarah Smith Garnet School (the)
782 students
- Academy of Art 757
Academy of Arts and Letters
757 students
- This school 133
Ps 270 Johann Dekalb
133 students
What this shows Ps 270 Johann Dekalb reports 133 students on the CCD universe file.
How Ps 270 Johann Dekalb compares
Ps 270 Johann Dekalb is a growing campus on CCD: 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 | 13.3:1 | ▲ 13% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 83.3% | ▲ 48% | 56.2% | 51.7% |
| Enrollment | 133 | top 96% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
13.3:1
Leaner classes than 64% of US schools, a middle-of-the-pack class size.
133
Bigger than 13% of US schools by enrollment, a small campus.
Equity indicators methodology
Economic need
83.3%
free-lunch eligible
- 48% 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
13.3:1
students per teacher
- 13% above state mean
Top 75% in New York - lower ratio than 25% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
70.7%
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
Hispanic or Latino 30.8%
African American 30.1%
White 28.6%
Asian 6.0%
Native Hawaiian / Pacific Islander 3.0%
American Indian / Alaska Native 0.8%
Two or More 0.8%
Largest group: Hispanic or Latino at 30.8% of enrollment.
Student-body diversity index 72.8/100
Simpson diversity index - at 72.8, Ps 270 Johann Dekalb is more mixed than the New York school average of 45.5.
How Ps 270 Johann Dekalb Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Brooklyn Technical High School | Larger | Lower economic need | Higher S:T ratio |
| Ps 11 Purvis J Behan | Larger | Lower economic need | Higher S:T ratio |
| Benjamin Banneker Academy | Larger | Lower economic need | Higher S:T ratio |
| Ps 9 Sarah Smith Garnet School (the) | Larger | Lower economic need | Higher S:T ratio |
| Academy of Arts and Letters | Larger | Lower economic need | Higher S:T ratio |
Comparisons are relative to Ps 270 Johann Dekalb's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 923
- Students per teacher
- 22.5:1
- Resource Index
- 20/100
- Enrollment
- 854
- Students per teacher
- 15.8:1
- Resource Index
- 18/100
- Enrollment
- 782
- Students per teacher
- 15:1
- Resource Index
- 33/100
- Enrollment
- 757
- Students per teacher
- 15.8:1
- Resource Index
- 27/100
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 (~133 students)
Frequently asked questions about Ps 270 Johann Dekalb
How many students attend Ps 270 Johann Dekalb?
Ps 270 Johann Dekalb has 133 students enrolled. It is a public school in Brooklyn, NY. CCD year-over-year: 96 (2022-23) → 122 (2023-24), up 26.
What is the student-teacher ratio at Ps 270 Johann Dekalb?
The student-teacher ratio at Ps 270 Johann Dekalb is 13.3:1, which is 13% higher than the New York average of 11.8:1 and 15% lower than the national average of 15.7:1.
What percentage of students receive free lunch at Ps 270 Johann Dekalb?
83.3% of students at Ps 270 Johann Dekalb are eligible for free lunch, compared to the New York average of 56.2%.
What is the racial and ethnic makeup of Ps 270 Johann Dekalb?
The largest demographic group at Ps 270 Johann Dekalb is Hispanic or Latino at 30.8% of enrollment, in Brooklyn, NY. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 72.8/100.
What is the Resource Investment Index for Ps 270 Johann Dekalb?
Ps 270 Johann Dekalb has a Resource Investment Index of 23/100 (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 270 Johann Dekalb rank among schools in Brooklyn?
By Resource Investment Index, Ps 270 Johann Dekalb ranks #190 of 262 schools in Brooklyn, NY. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Brooklyn on the city page.
What other schools are in New York City Geographic District #13?
Besides Ps 270 Johann Dekalb, New York City Geographic District #13 also operates Brooklyn Technical High School (5,848 students), Ps 11 Purvis J Behan (923 students), and Benjamin Banneker Academy (854 students). See the New York City Geographic District #13 district page for the complete list.