Clark is fully accredited by the Southern Association of Colleges and Schools (SACS), the most prestigious and respected accreditation available to high schools, Clark was evaluated and received the highest ratings possible, "highly functional" on seven major standards.

• Clark ranked Number One among the surrounding four-county area high schools on Florida's Department of Education school grading system. Clark excelled in participation and performance in accelerated programs, high school graduation rates, assessment test scores, and other performance criteria.

• Clark has been designated a Grade A school by the State of Florida for three years in a row, earning 403 points beyond the 1,050 required for the A designation.

• Clark seniors graduate with an average of at least one year of college coursework completed.  Over 43% of the members of the 2011 graduating class graduated with their Associate Degree qualified to continue their college education as a junior.

• Clark has achieved the status of "High-Performing Charter School" from the Florida Department of Education.

• Clark's outstanding reputation has resulted in several success grant-funded initiatives:

• Students participated in a school-wide Everglades Restoration project through a three-year National Science Foundation Grant;
• Students were immersed in technology through a Succeed Florida Career Paths grant in Cyber Security;
• Students benefited from a Tech Prep Demonstration Grant from the U.S. Department of Education to implement best practices in secondary education;
• Students engaged in hands-on analysis of Florida's ecosystem through a grant from the South Florida Water Management District.