Mastery CS-Hardy Williams
Philadelphia · PA · Mastery CS-Hardy Williams · Public charter · K-12 combined
Similar nearby schools
Most similar nearby schools
Boys' Latin of Philadelphia CS → Sayre William L MS → Overbrook HS → Parkway Center City Middle College → Mastery CHS-Lenfest Campus → National Constitution Center HS → Randolph A. Philip Area Vocational-Technical High School → Mastery CS -Thomas Campus →At a glance
- 2 AP courses offered — Strong
- Dual-enrollment program (college credit while in HS)
- 1 calculus classes · 3 physics · 3 chemistry
- AP rigor: 58th percentile nationally
- SAT/ACT participation: Bottom 45% by test-taker volume
- 4-yr grad rate: 97% in 2019 (90th percentile nationally)
Composed from federal CRDC offerings, EDFacts graduation data, and other public data. Full breakdowns below.
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How Mastery CS-Hardy Williams compares for families
Solid mid-tier academic profile.
- ▸ StatewideAP rigor at the 58th percentile nationally with 2 AP courses.
- ▸ LocallyPA students outperform the US average on NAEP 8th-grade math (+4 points).
- ▸ vs Similar SchoolsThe closest comparables nearby: Boys' Latin of Philadelphia CS, Sayre William L MS, Overbrook HS and 5 more. See the sidebar to compare side-by-side.
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Objective, government-grade data — no school pays us for placement.
Academic rigor
AP + advanced-course offerings
Strong — solid AP program + advanced courses
58th percentile nationally
Source: federal Civil Rights Data Collection (CRDC 2020-21). CRDC reports what's offered + enrolled — it doesn't collect AP exam pass rates (College Board owns that data and doesn't release it school-level).
SAT / ACT participation
CRDC federal data · 2020-21Bottom 45% by test-taker volume
Source: federal Civil Rights Data Collection (CRDC 2020-21). Volume — not score — is what's reported here. A higher count means more students at this school are entering the college admissions pipeline. Note: 2020-21 was COVID-disrupted; some districts (especially those that stayed remote longer) report unusually low or zero takers.
4-year graduation rate · federal EDFacts
What % of students graduate on time?
90th percentile nationally
Source: federal EDFacts ACGR (Adjusted Cohort Graduation Rate), 2019 vintage via Urban Institute. EDFacts publishes a range (low-high) to preserve privacy on small cohorts; we display the midpoint.
Teacher workforce · federal CRDC
Teacher experience & reliability
Source: federal Civil Rights Data Collection (CRDC 2017-18 — the most recent vintage that publishes per-school teacher quality fields; the 2020-21 sweep had them suppressed). "Inexperienced" = teachers in their first or second year. "Chronic absence" = teachers absent 10+ days/year.
Federal Title I context
High-poverty school
Title I Schoolwide eligible
≥75% of students qualify for free/reduced lunch. These schools qualify for the highest tier of federal Title I funding and typically receive extra wraparound services. Academic outcomes vary widely — check the state assessment + grad-rate tiles.
Source: NCES Common Core of Data, free/reduced-price lunch eligibility. The actual Title I designation is a district decision and may differ from eligibility — but the federal eligibility math is what we show here. We don't claim to assert whether the district formally chose to enroll this school in Title I.
Your state's public flagship
Pennsylvania State University-Main Campus
The in-state tuition gap is the flagship's biggest draw — most in-state families pay far less than the out-of-state sticker. Average net price after aid runs about $32,875/yr. Admission odds depend on your student's GPA and test scores, not which high school they attend.
Source: IPEDS admissions, tuition & enrollment + College Scorecard net price. Flagship = the state's primary public research university.
Chronic absenteeism
Why this matters to enrollment: Chronic absence is the most reliable early indicator that a student will leave a school — either by transferring out, dropping out, or matriculating to a charter or private alternative. At this level, today's absentees become next year's enrollment loss and the year-after's revenue loss.
Source: U.S. Department of Education, Civil Rights Data Collection 2020–2021. Rate = students chronically absent ÷ 2021 total enrollment.
Enrollment trend & projection
Total enrollment + grade 12, NCES Common Core of Data (2021–2024).
If the recent trend holds…
At its recent rate of +2.1%/year, projecting from 2024's 1,253 students:
An extrapolation of the recent trajectory, not a forecast of the school's plans; ignores one-off shocks.
Revenue upside
At $17,097 per student in district revenue, the 137 students projected to be gained by 2029 represent ≈ $2,342,289/year in additional funding.
District total revenue ÷ enrollment, NCES F-33. Public funding largely follows enrollment, so a shrinking class is a recurring budget hit.
Most similar nearby high schools
The schools most like this one — same type, blended on distance and size — and where their enrollment is heading. These are the schools families here weigh against each other.
| School | Type | Miles | HS enrollment | Trend |
|---|---|---|---|---|
| Boys' Latin of Philadelphia CS Philadelphia |
Public · charter | 0.8 | 456 | +0.0% |
| Sayre William L MS Philadelphia |
Public | 1.3 | 447 | +17.0% |
| Overbrook HS Philadelphia |
Public | 2.8 | 440 | +10.3% |
| Parkway Center City Middle College Philadelphia |
Public | 3.8 | 436 | -2.5% |
| Mastery CHS-Lenfest Campus Philadelphia |
Public · charter | 4.2 | 437 | +19.7% |
| National Constitution Center HS Philadelphia |
Public | 4.0 | 421 | +6.9% |
| Randolph A. Philip Area Vocational-Technical High School Philadelphia |
Public | 5.3 | 437 | -6.0% |
| Mastery CS -Thomas Campus Philadelphia |
Public · charter | 3.8 | 468 | +2.0% |
At a glance
JSON · Using this page with an AI assistantMastery CS-Hardy Williams is a public high school in Philadelphia, PA, enrolling 1,253 students in grades 9-12 in 2024.
Enrollment is up 12% from 2021 to 2024.
It offers 2 AP courses, a course-rigor profile stronger than 58% of U.S. high schools, and has a dual-enrollment program (federal Civil Rights Data Collection).
54 students took the SAT or ACT in the most recent federal count, a participation level above 45% of U.S. high schools.
Its federal four-year graduation rate was about 97% in the latest EDFacts release.
23% of its students were chronically absent in 2020.
Sources: National Center for Education Statistics (enrollment), the federal Civil Rights Data Collection and EDFacts, state education agencies where named, and the school's own published documents where named.
Questions families ask
How many AP courses does Mastery CS-Hardy Williams offer? Mastery CS-Hardy Williams offers 2 AP courses, a course-rigor profile stronger than 58% of U.S. high schools, and has a dual-enrollment program (federal Civil Rights Data Collection).
What is Mastery CS-Hardy Williams's graduation rate? Mastery CS-Hardy Williams's federal four-year graduation rate was about 97% in the latest EDFacts release.
How many students attend Mastery CS-Hardy Williams? Mastery CS-Hardy Williams is a public high school in Philadelphia, PA, enrolling 1,253 students in grades 9-12 in 2024.
Analysis: Test Prep Gurus (High School Reach, highschoolreach.com). These figures may be quoted with attribution to Test Prep Gurus.
What does AI tell parents about Mastery CS-Hardy Williams?
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Related reading
AP courses · October 2026
Test scores · October 2026