P.S. 321 William Penn

180 7 AVENUE, BROOKLYN, NY 11215 · Brooklyn · Elementary

DBN: 15K321

Elementary

Zoned: Elementary

SchoolDigger: 105 (of 2445)

Niche: 347 (of 2817)

Academic quality

ELA = English Language Arts (reading and writing). Math and Science are self-explanatory.
NY State tests ELA and Math every year in grades 3-8, and Science once, in grade 8 -- a school's numbers below only reflect whichever of those grades it actually serves (no social studies/history state test exists at this level).
"Avg. rating" is DOE's average student score on a 1.0-4.5 scale (higher is better) -- shown here as "value / 4.5" alongside the citywide average for the same metric as a benchmark for what's typical.

Attendance: 95.6%

93.9% attend 90%+ of days

Subject

Student group

Overall proficiency

ELA % proficient

88.7%(citywide avg: 78.6%)

ELA avg. rating

3.77 / 4.5(citywide avg: 3.54 / 4.5)

Math % proficient

90.4%(citywide avg: 79.8%)

Math avg. rating

3.75 / 4.5(citywide avg: 3.55 / 4.5)

By grade

Grade 3 ELA

86.3%

Grade 3 Math

88.6%

Grade 4 ELA

90.1%

Grade 4 Math

92.4%

Grade 5 ELA

90.3%

Grade 5 Math

90.4%

By student group

English Language Learners -- ELA

80%(citywide avg: 72.5%)

English Language Learners -- Math

87%(citywide avg: 75.9%)

Students with disabilities -- ELA

65.6%

Students with disabilities -- Math

63%

Asian students -- ELA

87.5%(citywide avg: 82.3%)

Asian students -- Math

89.6%(citywide avg: 86%)

Hispanic/Latino students -- ELA

82.1%(citywide avg: 70.6%)

Hispanic/Latino students -- Math

83.9%(citywide avg: 69.5%)

White students -- ELA

89.2%(citywide avg: 84%)

White students -- Math

90.6%(citywide avg: 84.6%)

Multiracial students -- ELA

93.1%(citywide avg: 90.4%)

Multiracial students -- Math

93.2%(citywide avg: 90.5%)

"% proficient" is the share of students scoring Level 3 or 4 on the state test. Citywide comparisons are the average across schools of the same type. Grades and groups with very few tested students are flagged since a handful of kids can swing the percentage a lot; groups too small to report are omitted by DOE for student privacy -- that's also why Science, tested only once, shows up far less often than ELA/Math.Source: NYC Open Data: School Quality Reports Data (2023-24 school year)

See full grade-by-grade test results (ELA, Math, Science) →

Demographics

1220 students enrolled

Economic Need Index: 6.7%

Race & ethnicity

Asian

8.8%

Black

2.7%

Hispanic or Latino

6.9%

White

69.6%

Multiracial

11.1%

Native American

0.8%

Other groups

Students with disabilities

14.3%

English Language Learners

1.6%

Living in poverty

6.1%

Female

51.5%

Male

48.5%

Economic Need Index is DOE's estimate of the share of students facing economic hardship, based on eligibility for public assistance, temporary housing status, and household income relative to the poverty line. Some very high values are reported by DOE only as "Above 95%" for student privacy and are shown here as 95%.Source: NYC Open Data: Demographic Snapshot (2021-22 school year)

Kindergarten admissions priority breakdown

Admissions cycle

Zoned

225 seats

Priority groups, in the order NYC DOE offers seats. Tap a group for NYC DOE's exact wording.

1. Students who live in the zone and have a sibling at the school.

~100% admitted

There were about 65 applicants in this group and all received offers last year.This group's offers alone accounted for ~29% of the program's seats -- not the same as this group's own admit rate above, since offers can exceed seats (not everyone who gets one enrolls).

2. Other students who live in the zone.

~100% admitted

There were about 130 applicants in this group and all received offers last year.This group's offers alone accounted for ~58% of the program's seats -- not the same as this group's own admit rate above, since offers can exceed seats (not everyone who gets one enrolls).

3. Students who live in the district and have a sibling at the school.

~100% admitted

There were about 15 applicants in this group and all received offers last year.This group's offers alone accounted for ~7% of the program's seats -- not the same as this group's own admit rate above, since offers can exceed seats (not everyone who gets one enrolls).

4. Students who live outside the district and have a sibling at the school.

~100% admitted

There were fewer than 5 applicants in this group and all received offers last year.This group's offers alone accounted for ~2% of the program's seats -- not the same as this group's own admit rate above, since offers can exceed seats (not everyone who gets one enrolls).

5. Other students who live in the district.

~25% admitted

There were about 60 applicants in this group and about 15 received offers last year.This group's offers alone accounted for ~7% of the program's seats -- not the same as this group's own admit rate above, since offers can exceed seats (not everyone who gets one enrolls).

6. Other students who live outside the district.

~0% admitted

There were about 70 applicants in this group and none received offers last year.This group's offers alone accounted for ~0% of the program's seats -- not the same as this group's own admit rate above, since offers can exceed seats (not everyone who gets one enrolls).

Estimates derived from NYC DOE's own wording, which rounds and fuzzes small numbers for privacy. Each group's applicant count is independent of the others -- schools are usually oversubscribed, so applicant counts across groups often add up to more than the total seats. That's expected, not an error.Source: NYC DOE MySchools Admissions Data (2025-26 admissions cycle)