Ps 321 William Penn
Brooklyn, NY · Elementary School
Ps 321 William Penn is a elementary school in Brooklyn, NY with 1,216 students enrolled and a 74% proficiency rate. Part of New York City Geographic District #15. NCES data from the U.S. Department of Education.
Ps 321 William Penn is a elementary school in Brooklyn, NY, enrolling 1,216 students within the New York City Geographic District #15. That headcount is above the 545-student average for schools in the district.
On the latest EDFacts assessments, 74% of students reached grade-level proficiency in combined math and reading — a rate near the top of the national distribution. That is 28 points above the 45% average for the New York City Geographic District #15. Against the 47% New York statewide average, the school sits 27 points higher.
Over the last three reported years the district proficiency rate this school inherits has risen by about 28 points.
The student-teacher ratio is 15.2 to 1, close to the U.S. average of about 16 to 1. A relatively low 6% of students qualify for free or reduced-price lunch.
Get Ps 321 William Penn's new scores when they post
Subscribe for OpenSchoolData updates by email. No spam, unsubscribe anytime.
About This School
Ps 321 William Penn is a elementary school located in Brooklyn, New York. The school serves 1,216 students. The student-to-teacher ratio is 15.2:1.
According to EDFacts assessment data, 74% of students meet grade-level proficiency standards in combined math and reading.
6% of students qualify for free or reduced-price lunch.
Ps 321 William Penn is part of the New York City Geographic District #15 in New York.
How This School Compares
Ps 321 William Penn has 1,216 students enrolled, making it larger than the average school in New York City Geographic District #15 (545 students). Its 74% proficiency rate is 28 percentage points above the district average of 45%. Compared to the New York state average of 47%, the school performs 27 points higher.
Other Schools in New York City Geographic District #15
Frequently Asked Questions
Ps 321 William Penn has 1,216 students enrolled. The student-to-teacher ratio is 15.2:1.
According to EDFacts data, 74% of students at Ps 321 William Penn meet grade-level proficiency standards in combined math and reading assessments.
Ps 321 William Penn is part of the New York City Geographic District #15 in Brooklyn, New York. You can view all schools in this district on the district page.
All data on this page comes from the National Center for Education Statistics (NCES) Common Core of Data and EDFacts assessment results. These are official federal datasets published by the U.S. Department of Education.
School profiles are built from NCES directory data and EDFacts assessment results. Proficiency rates reflect combined math and reading performance. Graduation rates are reported for high schools with available data.
Source: NCES Common Core of Data, 2026.