Thornwell Charter School
Clinton · SC · Charter Institute at Erskine · Public charter · K-12 combined
Similar nearby schools
Most similar nearby schools
Whitmire Community School (High) → Ware Shoals High → Clinton High → Newberry County Career Center → G. Frank Russell Technology Center → Union County Career and Technology Center → R. D. Anderson Applied Technology Center → Ninety Six High School →At a glance
- AP rigor: Bottom 6% of US high schools
Composed from federal CRDC offerings, and other public data. Full breakdowns below.
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How Thornwell Charter School compares for families
What families should know about Thornwell Charter School.
- ▸ LocallySC sits right at the US average on NAEP 8th-grade math — local school quality will set your kid apart.
- ▸ vs Similar SchoolsThe closest comparables nearby: Whitmire Community School (High), Ware Shoals High, Clinton High and 5 more. See the sidebar to compare side-by-side.
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SAT / ACT participation
CRDC federal data · 2020-21Source: 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.
Your state's public flagship
University of South Carolina-Columbia
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 $22,811/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 strongest early indicator of dropout, transfer-out, and family disengagement. A school's absenteeism trend forecasts its enrollment trend 1-3 years out.
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).
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 |
|---|---|---|---|---|
| Whitmire Community School (High) Whitmire |
Public | 14.1 | 147 | -3.3% |
| Ware Shoals High Ware Shoals |
Public | 20.9 | 265 | -1.9% |
| Clinton High Clinton |
Public | 2.1 | 811 | -1.3% |
| Newberry County Career Center Newberry |
Public | 21.4 | — | — |
| G. Frank Russell Technology Center Greenwood |
Public | 22.8 | — | — |
| Union County Career and Technology Center Union |
Public | 25.2 | — | — |
| R. D. Anderson Applied Technology Center Moore |
Public | 26.4 | — | — |
| Ninety Six High School Ninety Six |
Public | 22.9 | 423 | -9.0% |
At a glance
JSON · Using this page with an AI assistantThornwell Charter School is a public high school in Clinton, SC, enrolling 525 students in grades 9-12 in 2024.
Enrollment is up 123% from 2021 to 2024.
11% 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 students attend Thornwell Charter School? Thornwell Charter School is a public high school in Clinton, SC, enrolling 525 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 Thornwell Charter School?
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Related reading
AP courses · October 2026
Test scores · October 2026