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What's the one class at PS 21 CRISPUS ATTUCKS every student should take?
Community prompt from u/allk12. Replies below.
Enrollment
430
Elementary
DISTRICT 233 · STATE 443
SCHOOL COMMUNITY·NEW YORK CITY GEOGRAPHIC DISTRICT #16·NCES 360009402108
PS 21 CRISPUS ATTUCKS
180 CHAUNCEY ST, BROOKLYN, NY 11233 · (718) 493-9681 · Kings County
GRADES PK–05ELEMENTARY11-CITYTITLE IREGULAR SCHOOL430 STUDENTS
A-
allk12 Grade
Scored higher than 82% of New York public elementary schools
- B+Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- ABeats 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
13.2:1
33 FTE teachers
DISTRICT 10.4:1 · STATE 12.8:1
Free / Reduced Lunch
80%
343 students
DISTRICT 88% · STATE 58%
Community
1
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 | 84 | 20% |
| Kindergarten | 53 | 12% |
| Grade 1 | 57 | 13% |
| Grade 2 | 51 | 12% |
| Grade 3 | 63 | 15% |
| Grade 4 | 58 | 13% |
| Grade 5 | 64 | 15% |
This year's kindergarten class (53) is 17% smaller than its 5th grade class (64).
Student demographics
28%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 53% · 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
80.0%
NY avg 58.3% . +22.0pp since 2023
Math
77.0%
NY avg 57.4% . +17.0pp since 2023
What this means: On the NYS Assessments, New York's statewide test, about 80 of every 100 students at this school read and write at grade level and about 77 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 17 points.
NYS Assessments results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 80.0% | 77.0% |
| 2023-24 | 58.0% | 60.0% |
% 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
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
64.2%
composite math + reading, all grades
Predicted
45.7%
based on NY schools with similar FRL share
Beats by
+18.6pp
above demographic expectation
What this means: About 64% of students here test proficient in math and reading, compared with the roughly 46% typical for New York schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among New York's top nor bottom 10%.
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 21 CRISPUS ATTUCKS
PS 21 CRISPUS ATTUCKS's state test result (64.2% proficient) is higher than 4 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| PS 21 CRISPUS ATTUCKS this school | 430 | 79.8% | 64.2% |
| BRONX CHARTER SCHOOL FOR BETTER LEARNING II BRONX | 423 | 81.8% | 51.8% |
| BRONX CHARTER SCHOOL FOR EXCELLENCE 4 BRONX | 452 | 81.6% | 75.6% |
| STEAM AT DR KING ELEMENTARY SCHOOL SYRACUSE | 439 | 79.7% | 14.7% |
| PS 66 BROOKLYN | 527 | 80.5% | 51.5% |
| BRONX CHARTER SCHOOL FOR BETTER LEARNING BRONX | 532 | 76.9% | 59.0% |
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 21 CRISPUS ATTUCKS ranks
Among elementary schools| Measure | This school | In New York | In Kings County |
|---|---|---|---|
| State test proficiency ranked highest first | 64.2% | #589 of 2,335 | #94 of 290 |
| Math proficiency ranked highest first | 77.0% | #442 of 2,342 ▲ 472 | #76 of 290 ▲ 52 |
| Reading proficiency ranked highest first | 80.0% | #243 of 2,343 ▲ 318 | #43 of 290 ▲ 41 |
| Enrollment ranked largest first | 430 | #1,197 of 2,585 | #149 of 306 |
| Students per teacher ranked fewest first | 13.2:1 | #1,671 of 2,338 | #156 of 249 |
| Diversity index ranked most diverse first | 28.2% | #1,922 of 2,388 | #236 of 263 |
| Free and reduced lunch ranked highest share first | 79.8% | #775 of 2,534 | #208 of 300 |
| Enrollment change since 2017-18 ranked steepest decline first | -25.1% | #428 of 1,757 | #98 of 225 |
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
430
-103 (-19%) vs 2020
-37% since 2010-11, when it was 684
Student : Teacher
13.2:1
was 15.2:1
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 | 430 | 32.7 | 13.2:1 | 80% (343) |
| 2023-24 | 459 | 31.8 | 14.4:1 | 79% (363) |
| 2022-23 | 470 | 31.6 | 14.9:1 | 78% (365) |
| 2020-21 | 533 | 35 | 15.2:1 | 75% (402) |
| 2017-18 | 574 | 42 | 13.7:1 | 74% (425) |
| 2015-16 | 615 | 40 | 15.4:1 | 65% (397) |
| 2010-11 | 684 | 44 | 15.6:1 | 79% (541) |
Source: NCES Common Core of Data. Rows are the federal collections on file for PS 21 CRISPUS ATTUCKS.
About PS 21 CRISPUS ATTUCKS
PS 21 CRISPUS ATTUCKS is a medium-sized elementary school in NEW YORK CITY GEOGRAPHIC DISTRICT #16, located in BROOKLYN, New York. It serves 430 students in pre-K through 5.
The district, NEW YORK CITY GEOGRAPHIC DISTRICT #16, has 5,175 students enrolled across 23 schools.
The student body at PS 21 CRISPUS ATTUCKS is 83% Black. Other groups include 14% Hispanic. By comparison, Kings County residents are about 28% Black. Pick two students at random and there is a 28% chance they belong to different racial or ethnic groups; that figure is the school's diversity index.
Teacher staffing is 32.7 full-time equivalents, or about 13.2 students per teacher. That is close to the 12.8:1 average for elementary schools in New York. Eligibility for subsidized school meals is 80%. For comparison, public schools in Kings County average 79%.
The allk12 Grade for PS 21 CRISPUS ATTUCKS is A-. Compared with New York public elementary schools, the school scored higher than 82% on a mix of test scores, poverty-adjusted results, and recent trend.
On the allk12 BeatsExpectations measure, PS 21 CRISPUS ATTUCKS is 18.6 points above the average proficiency rate on state tests predicted for its free or reduced-price lunch share: 64.2% actual, 45.7% predicted. That is outside both the top and bottom 10% in New York.
Federal survey data for Kings County show that the median household income is $80,263, a bachelor's degree or higher is held by about 42% of adults, and the poverty rate is about 15%. There are 583 public schools in Kings County, enrolling about 291,697 students in all.
The next-closest public school is UNCOMMON EXCELLENCE BOYS CHARTER SCHOOL NYC, about 0.2 miles away. The count of other public schools within five miles is at least 8. In a group of 9 nearby schools with scores, PS 21 CRISPUS ATTUCKS ranks 3rd on average proficiency.
The school is inside a principal city with a population of 250,000 or more, according to its NCES locale (City: Large).
Enrollment is down 19% from 2020-21, when PS 21 CRISPUS ATTUCKS had 533 students, to 2024-25, when it had 430. The ratio was 15.2:1 in 2020-21 and 13.2:1 in 2024-25.
The PS 21 CRISPUS ATTUCKS community page is open for posts about sports schedules, lunch menus, and spirit week. Anyone with firsthand experience at this school can post or comment.
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 #16
- BROOKLYN HIGH SCHOOL FOR LAW AND TECHNOLOGYHigh · 469 students
- PS 40 GEORGE W CARVERElementary · 465 students
- BOYS AND GIRLS HIGH SCHOOLHigh · 353 students
- BROOKLYN BROWNSTONE SCHOOLElementary · 352 students
- BROOKLYN ACADEMY OF GLOBAL FINANCE (THE)High · 222 students
- PS 5 DR RONALD MCNAIRElementary · 218 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
- UNCOMMON EXCELLENCE BOYS CHARTER SCHOOL NYC0.2 mi · 415
- PS 40 GEORGE W CARVER0.2 mi · 465
- PS 262 EL HAJJ MALIK EL SHABAZZ ELEMENTARY SCHOOL0.3 mi · 155
- NELSON MANDELA HIGH SCHOOL0.3 mi · 138
- BOYS AND GIRLS HIGH SCHOOL0.3 mi · 353
- RESEARCH AND SERVICE HIGH SCHOOL0.3 mi · 184
Frequently asked questions
About PS 21 CRISPUS ATTUCKSHow many students attend PS 21 CRISPUS ATTUCKS?
PS 21 CRISPUS ATTUCKS enrolls approximately 430 students in grades PK-05.
What grades does PS 21 CRISPUS ATTUCKS serve?
PS 21 CRISPUS ATTUCKS serves grades PK-05.
What is the student-teacher ratio at PS 21 CRISPUS ATTUCKS?
The student-to-teacher ratio at PS 21 CRISPUS ATTUCKS is approximately 13.2:1 (33 FTE teachers).
What is the student diversity at PS 21 CRISPUS ATTUCKS?
Student demographics at PS 21 CRISPUS ATTUCKS are roughly 1% White, 14% Hispanic, 83% Black, 1% Two or more.
What district is PS 21 CRISPUS ATTUCKS in?
PS 21 CRISPUS ATTUCKS is part of NEW YORK CITY GEOGRAPHIC DISTRICT #16.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.