Enrollment
133
Elementary
DISTRICT 370 · STATE 443
SCHOOL COMMUNITY·NEW YORK CITY GEOGRAPHIC DISTRICT #13·NCES 360009102784
PS 270 JOHANN DEKALB
241 EMERSON PL, BROOKLYN, NY 11205 · (718) 623-5280 · Kings County
GRADES PK–05ELEMENTARY11-CITYTITLE IREGULAR SCHOOL133 STUDENTS
F
allk12 Grade
Scored higher than 1% of New York public elementary schools
- FTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- FBeats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- ·Three-year trend Not available for this school, so the grade uses the other parts.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded New York public elementary schools
Student : Teacher
10.2:1
13 FTE teachers
DISTRICT 12.5:1 · STATE 12.8:1
Free / Reduced Lunch
57%
76 students
DISTRICT 72% · STATE 58%
Community
0
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Pre-K | 63 | 47% |
| Kindergarten | 15 | 11% |
| Grade 1 | 17 | 13% |
| Grade 2 | 9 | 7% |
| Grade 3 | 11 | 8% |
| Grade 4 | 8 | 6% |
| Grade 5 | 10 | 8% |
This year's kindergarten class (15) is 50% larger than its 5th grade class (10).
Student demographics
73%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 76% · STATE 72% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Test scores
NYS Assessments 2024-25 . % Proficient (Level 3 + Level 4)English Language Arts
30.0%
NY avg 58.3% . +22.0pp since 2023
Math
16.0%
NY avg 57.4% . +5.0pp since 2023
What this means: On the NYS Assessments, New York's statewide test, about 30 of every 100 students at this school read and write at grade level and about 16 of 100 do math at grade level. Across all New York schools, those numbers are about 58 and 57. Reading and writing scores are up about 22 points since 2023, while math scores are up about 5 points.
NYS Assessments results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 30.0% | 16.0% |
| 2023-24 | 8.0% | 11.0% |
% Proficient (Level 3 + Level 4), all students and all tested grades.
Source: NYS Assessments. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
UNDERPERFORMING
Bottom 10% of NY schools after controlling for student poverty
Actual proficiency
15.8%
composite math + reading, all grades
Predicted
54.0%
based on NY schools with similar FRL share
Beats by
-38.2pp
below demographic expectation
What this means: About 16% of students here test proficient in math and reading, below the roughly 54% typical for New York schools with a similar share of low-income students. BeatsExpectations compares each school with others at the same poverty level, not by raw scores, so a school lands here when its results trail those comparable schools, which is not the same as having low scores. A higher-scoring school can still fall in this tier if similar schools score higher still.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like PS 270 JOHANN DEKALB
PS 270 JOHANN DEKALB's state test result (15.8% proficient) is higher than 0 of the 4 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| PS 270 JOHANN DEKALB this school | 133 | 57.1% | 15.8% |
| GENESEE COMMUNITY CHARTER SCHOOL-FLOUR CITY CAMPUS ROCHESTER | 158 | 51.3% | 43.8% |
| CENTRAL PARK EAST I NEW YORK | 169 | 47.9% | 64.1% |
| NORTHEAST SCHOOL AMITYVILLE | 145 | 60.7% | N/A |
| GENESEE COMMUNITY CHARTER SCHOOL ROCHESTER | 233 | 51.1% | 48.3% |
| EARTH SCHOOL NEW YORK | 175 | 61.7% | 49.0% |
Matched among New York elementary schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where PS 270 JOHANN DEKALB ranks
Among elementary schools| Measure | This school | In New York | In Kings County |
|---|---|---|---|
| State test proficiency ranked highest first | 15.8% | #2,290 of 2,335 | #290 of 290 |
| Math proficiency ranked highest first | 16.0% | #2,289 of 2,342 ▲ 24 | #287 of 290 ▲ 3 |
| Reading proficiency ranked highest first | 30.0% | #2,111 of 2,343 ▲ 207 | #276 of 290 ▲ 14 |
| Enrollment ranked largest first | 133 | #2,522 of 2,585 | #296 of 306 |
| Free and reduced lunch ranked highest share first | 57.1% | #1,213 of 2,534 | #260 of 300 |
Ranked against other public elementary schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
133
+39 (+41%) vs 2020
-41% since 2010-11, when it was 224
Student : Teacher
10.2:1
was 8.6:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 133 | 13 | 10.2:1 | 57% (76) |
| 2023-24 | 122 | 12 | 10.2:1 | 70% (85) |
| 2022-23 | 96 | 10 | 9.6:1 | 85% (82) |
| 2020-21 | 94 | 11 | 8.6:1 | 91% (86) |
| 2017-18 | 115 | 13 | 8.8:1 | 87% (100) |
| 2015-16 | 145 | 12 | 12.1:1 | 95% (138) |
| 2010-11 | 224 | 19 | 11.8:1 | 92% (205) |
Source: NCES Common Core of Data. Rows are the federal collections on file for PS 270 JOHANN DEKALB.
About PS 270 JOHANN DEKALB
Located in BROOKLYN, New York, PS 270 JOHANN DEKALB is a small elementary school. School enrollment was 133 students in 2024-25, in pre-K through 5. For comparison, elementary schools in New York average about 443 students.
NEW YORK CITY GEOGRAPHIC DISTRICT #13 includes 42 schools. Together they enroll 19,151 students.
PS 270 JOHANN DEKALB's enrollment has no majority group, and Hispanic students are the largest at 31%. After that, the student body is 30% Black, 29% White, 6% Asian, and 3% Pacific Islander. Among all residents of Kings County, the Hispanic share is about 19%. By the diversity index, PS 270 JOHANN DEKALB comes in at 73%.
At PS 270 JOHANN DEKALB, 13 full-time-equivalent teachers work with students, a ratio of about 10.2:1. That ratio is under the 12.8:1 average for elementary schools in New York. Students eligible for free or reduced-price lunch make up 57% of enrollment. The gap from the 79% average for public schools in Kings County is 22 points.
allk12 grades PS 270 JOHANN DEKALB an F. The grade compares the school only with New York public elementary schools, because each state gives its own test.
Predicted from its free or reduced-price lunch share, PS 270 JOHANN DEKALB would score about 54.0%. It scores 15.8%, a bottom-10% result among New York schools on BeatsExpectations.
In Kings County (population about 2,631,580), median household income is about $80,263, 42% of adults hold a bachelor's degree or higher, and about 15% of residents live below the federal poverty line. A total of 583 public schools operate in Kings County, serving about 291,697 students.
COMMUNITY PARTNERSHIP CHARTER SCHOOL is the public school closest to PS 270 JOHANN DEKALB, less than a tenth of a mile away. PS 270 JOHANN DEKALB has at least 8 other public schools within five miles. Local comparison: PS 270 JOHANN DEKALB ranks 9th of 9 nearby schools, at 15.8% versus a 48.7% average.
PS 270 JOHANN DEKALB is inside a principal city with a population of 250,000 or more, a location NCES labels City: Large.
Enrollment was 94 in 2020-21 and 133 in 2024-25. Large swings like this can come from changes to the grades a school serves. The ratio was 8.6:1 in 2020-21 and 10.2:1 in 2024-25.
The discussion area below is open to posts about school events, clubs, and volunteer needs. Questions from prospective families are welcome too.
Kings County at a glance
View full county profilePopulation
2,631,580
Census ACS
Median income
$80,263
Household, ACS
Bachelor's+
42%
Adults 25+
Poverty rate
15%
Below federal line
Schools in county
583
291,697 students
Quick facts
Related schools
Other schools in NEW YORK CITY GEOGRAPHIC DISTRICT #13
- BROOKLYN TECHNICAL HIGH SCHOOLHigh · 5,848 students
- PS 11 PURVIS J BEHANElementary · 923 students
- BENJAMIN BANNEKER ACADEMYHigh · 854 students
- PS 9 SARAH SMITH GARNET SCHOOL (THE)Elementary · 782 students
- ACADEMY OF ARTS AND LETTERSElementary · 757 students
- PS 20 CLINTON HILLElementary · 689 students
Other schools in BROOKLYN
- BROOKLYN TECHNICAL HIGH SCHOOLHigh · 5,848 students
- FORT HAMILTON HIGH SCHOOLHigh · 4,044 students
- JAMES MADISON HIGH SCHOOLHigh · 3,983 students
- MIDWOOD HIGH SCHOOLHigh · 3,657 students
- EDWARD R MURROW HIGH SCHOOLHigh · 3,503 students
- FRANKLIN DELANO ROOSEVELT HIGH SCHOOLHigh · 3,403 students
Nearby schools
- COMMUNITY PARTNERSHIP CHARTER SCHOOL0.0 mi · 394
- BROOKLYN COMMUNITY ARTS AND MEDIA HIGH SCHOOL (BCAM)0.2 mi · 360
- BROOKLYN HIGH SCHOOL FOR LEADERSHIP AND COMMUNITY SERVICE0.2 mi · 154
- URBAN ASSEMBLY UNISON SCHOOL (THE)0.4 mi · 172
- PS 56 LEWIS H LATIMER0.4 mi · 253
- PS/IS 157 BENJAMIN FRANKLIN HEATH AND SCIENCE ACADEMY (THE)0.4 mi · 377
Frequently asked questions
About PS 270 JOHANN DEKALBHow many students attend PS 270 JOHANN DEKALB?
PS 270 JOHANN DEKALB enrolls approximately 133 students in grades PK-05.
What grades does PS 270 JOHANN DEKALB serve?
PS 270 JOHANN DEKALB serves grades PK-05.
What is the student-teacher ratio at PS 270 JOHANN DEKALB?
The student-to-teacher ratio at PS 270 JOHANN DEKALB is approximately 10.2:1 (13 FTE teachers).
How diverse is PS 270 JOHANN DEKALB?
PS 270 JOHANN DEKALB reports a student body of 29% White, 31% Hispanic, 30% Black, 6% Asian, 1% Two or more.
Is PS 270 JOHANN DEKALB public or private?
PS 270 JOHANN DEKALB is a public K-12 school, overseen by NEW YORK CITY GEOGRAPHIC DISTRICT #13.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.