PS 321 WILLIAM PENN

PS 321 WILLIAM PENN is an expansive K-5 school in BROOKLYN, New York, run under NEW YORK CITY GEOGRAPHIC DISTRICT #15. The school enrolls 1,305 students in grades pre-K through 5. Compared to the state average of about 443 students per school, that is 195% larger than typical.

NEW YORK CITY GEOGRAPHIC DISTRICT #15 runs 51 schools in total, collectively educating 25,925 students. PS 321 WILLIAM PENN is one of those campuses.

Demographically, PS 321 WILLIAM PENN logs that the largest single group is White, at 65% of enrollment. Beyond that, the school records 13% multiracial, 10% Hispanic, 9% Asian, 2% Black. The wider county runs roughly 38% White, putting the school's mix visibly more White than the area baseline.

Looking at the economic backdrop, The school lists 81 full-time-equivalent teachers, for a student-teacher ratio near 16.1:1. Statewide, the average ratio sits near 12.8:1, putting PS 321 WILLIAM PENN higher than the state norm the norm. Roughly 6% of students at PS 321 WILLIAM PENN qualify for free or reduced-price lunch, a commonly cited indicator of low-income enrollment. By comparison, Kings County runs at roughly 79%, so the school's eligibility rate is somewhat below the surrounding baseline.

With demographic context factored in, PS 321 WILLIAM PENN tracks the demographic baseline. The model predicts 72.8% given the school's FRL share; actual proficiency is 85.4%.

In the area at large, Kings County reports that median household earnings sit near $80,263, about 42% of the adult population holds a bachelor's degree or above, and census figures put the poverty rate at about 15%. Across Kings County's 583 public schools (combined enrollment of about 291,697 students), PS 321 WILLIAM PENN is one campus in the mix.

Nearest neighbor: PARK SLOPE COLLEGIATE, around 0.2 miles off. Counting just inside five miles, 8 other public schools cluster around PS 321 WILLIAM PENN. On composite proficiency, PS 321 WILLIAM PENN comes 3rd of 9 in the immediate cluster, ahead of the nearby-schools average of 67.4%.

The school occupies a downtown site.

Looking at the recent track record. PS 321 WILLIAM PENN's enrollment has decreased 8% since 2018, when it stood at 1,417 (now 1,305). White enrollment moved from 78% to 65% across the same window. Class-load math has tightened: from 17.7:1 in 2018 to 16.1:1 in 2025.

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