Charleston Charter School for Math and Science: report card

Last checked Oct. 16, 2026. Sources: the school’s website; the school’s faculty directory; Charleston County School District’s charter schools page and 2026-27 academic calendar; the S.C. Department of Education’s 2024-25 report card data files; the federal NCES school directory; the South Carolina High School League’s 2026-28 reclassification.

Charleston Charter School for Math and Science is a public charter school in Charleston County School District for sixth through 12th grade, on upper King Street. On South Carolina’s 2024-25 report card it was rated Excellent for its high school grades, with 73 points, and Good for its middle grades, with 51 points.

Who to call

• Front office: 843-720-3085, 1002 King St.
• School website: charlestonmathscience.org
• Applying: Through the school’s own lottery. The 2026-27 lottery application closed Feb. 26, 2026; a waitlist application is open, and an interest form covers 2027-28.
• Charter questions: the district’s charter schools page; School Choice office 843-937-6582

Principal

Executive Principal and CEO Mary Carmichael, with Lead Principal Melissa Frasier, according to the school’s faculty directory.

Enrollment and teachers

• State count: 573 students in the 2024-25 school year, according to the state’s report card data.
• Federal count: 559 students in the 2023-24 school year, with 49 full-time-equivalent teachers, according to the NCES directory. That is about 11 students per teacher.

State report card

South Carolina rates every public school each year as Excellent, Good, Average, Below Average or Unsatisfactory. An Excellent rating means “school performance substantially exceeds the criteria to ensure all students meet the Profile of the SC Graduate,” according to the state’s report card site. The overall rating is built from indicators such as academic achievement, preparing for success, student progress, English learners’ progress and school climate, with graduation rate and college and career readiness added for high schools.

2024-25 rating for high school grades: Excellent, 73 points. On the state’s high school scale, Excellent 67 to 100, Good 60 to 66, Average 51 to 59, Below Average 40 to 50 and Unsatisfactory 39 and below.

• Four-year graduation rate: 98.6% in 2025, after 98.7% in 2024 and 100% in 2023 (district: 90.6% in 2025)
• College or career ready: 94.4% of the 2025 graduating class (district: 84.8%)
• End-of-course tests, share scoring A, B or C: English 73.6%, Algebra 66%, Biology 54.5% and U.S. History 56.1%
• AP and dual enrollment: 23.6% of the 2025 graduating class met the state’s college-ready mark through AP exams and 41.7% through dual-enrollment courses

2024-25 rating for middle grades: Good, 51 points. On the state’s middle school scale, Excellent 56 to 100, Good 48 to 55, Average 36 to 47, Below Average 29 to 35 and Unsatisfactory 28 and below.

On the spring 2025 SC READY tests in grades 6 to 8, 61.3% of students met or exceeded expectations in English language arts and 45% in math; on the state science test, 53.8% did, according to the state’s report card data.

Across Charleston County School District, in grades 3 to 8, the figures were 67.6% in English, 56.2% in math and 57.2% in science.

The full report cards, with test results by group, teacher data, school safety and spending, are on the state’s SC School Report Cards site: high school card and middle grades card. The state publishes new ratings each fall.

Admission

The school has no attendance zone. It runs its own lottery: its admissions page says the lottery application for 2026-27 closed Feb. 26, 2026, and a waitlist application is open, with waitlist positions posted by grade. Families can fill in the school’s 2027-28 interest form for the next lottery. The district’s charter schools page confirms the school runs its own application process.

Calendar and school hours

As a charter school, Charleston Charter School for Math and Science can set its own calendar and school day, and the district’s bell schedule does not list it, so confirm dates and times on the school’s website. For reference, Charleston County School District’s 2026-27 academic calendar (PDF) closes district schools Tuesday, Nov. 3, for Election Day, Nov. 23-27 for fall break and the weather make-up days before it, and Dec. 21 to Jan. 1 for winter break.

Sports and activities

Charleston Charter is a Class 1A school in Region 8 for the South Carolina High School League’s 2026-28 classification, with Baptist Hill, Burke, Cross, Lowcountry Leadership, Military Magnet, Palmetto Scholars and St. Johns, according to the SCHSL reclassification lookup. The league’s list marks the school as not fielding a football team.

Fall schedules and results are in our Friday night football guide and on our scoreboard.

More

• The district’s charter schools page
• Every public school in Charleston, with zones and report cards
• Our Charleston schools guide for the district calendars, enrollment and the school board

Frequently asked questions

What grades does Charleston Charter School for Math and Science serve?

Charleston Charter School for Math and Science serves sixth through 12th grade, according to the state’s 2024-25 report card.

What is Charleston Charter School for Math and Science’s school rating?

Charleston Charter School for Math and Science was rated Excellent for its high school grades, with 73 points, and Good for its middle grades, with 51 points, on South Carolina’s 2024-25 school report card, the latest the state has published.

How do you get into Charleston Charter School for Math and Science?

Through the school’s own lottery. The 2026-27 lottery application closed Feb. 26, 2026; a waitlist application is open, and an interest form covers 2027-28.