Mastery CS-Hardy Williams

5400 Warrington Street
Philadelphia, PA 19143

www.masterycharter.org/

Charter School 1,253 Students

Other K - 12th

School Overview

Mastery Charter School – Hardy Williams, located in the Kingsessing neighborhood of Philadelphia, is a prominent member of the Mastery Charter Schools network. Serving a diverse student body, the school operates with a focus on providing a rigorous college-preparatory education within a structured environment. By emphasizing high academic standards and individualized support, the campus aims to prepare students not only for graduation but for long-term success in higher education and professional careers.

The school is well-known for its "Mastery" model, which centers on the philosophy that students must demonstrate true proficiency in a subject before moving forward, rather than simply passing based on seat time. Beyond academics, Hardy Williams places a strong emphasis on character development and community engagement, fostering a culture of accountability and respect. Through its combination of data-driven instruction and a supportive school climate, the institution strives to close the achievement gap and provide equitable opportunities for its students in Southwest Philadelphia.

1,253

Total Students

66.2

Full-Time Teachers

18.9

Student/Teacher Ratio

N/A

Free/Reduced Lunch

Student Demographics

Student Demographics Data Table

Student Demographics for Mastery CS-Hardy Williams
Demographic	Student Count
White	2
Hispanic	35
Black	1,186
Asian	3
Two or More	20
American Indian	5
Pacific Islander	2

Black
1,186 (94.7%)
Hispanic
35 (2.8%)
Two or More
20 (1.6%)
American Indian
5 (0.4%)
Asian
3 (0.2%)
White
2 (0.2%)
Pacific Islander
2 (0.2%)

School Location

School Details

Status:	Open
School Level:	Other
School Type:	Regular School
Charter Status:*	Charter School
Virtual Instruction:	No virtual instruction
Shared Time Status:	No
District:	Mastery CS-Hardy Williams
Phone:	(215)724-2343
Website:	http://www.masterycharter.org/
Grade Range:	K - 12th
Total Students:	1,253
Full-Time Teachers (FTE):	66.2
Pupil/Teacher Ratio:	18.9
NSLP Participation:¹	No
Qualified Free Lunch:	0
Qualified Reduced Lunch:	0

* Charter Schools: A public charter school is a publicly funded school that operates independently under a legislative contract (or "charter") with a state, school district, or designated authorizing entity. Charters grant these schools greater operational flexibility over curriculum, staffing, and budgeting in exchange for strict accountability to achieve performance standards established in their charter agreement.

¹ National School Lunch Program (NSLP): The National School Lunch Program is a federally assisted meal program operating in public and nonprofit private schools. It provides nutritionally balanced, low-cost or free lunches to eligible children each school day based on household income thresholds or community eligibility options (CEO).

Title I Program Overview: Title I, Part A of the Elementary and Secondary Education Act (ESEA) allocates federal financial assistance to local educational agencies and public schools with high percentages of children from low-income families to help ensure that all children meet challenging state academic standards.

Grades Taught

Kindergarten 70

Grade 1 77

Grade 2 83

Grade 3 84

Grade 4 88

Grade 5 83

Grade 6 87

Grade 7 117

Grade 8 128

Grade 9 116

Grade 10 108