[1] For the 2021-2022 school year, the school was given a "B" by the Texas Education Agency, with distinctions for Academic Achievement in Science, Social Studies, and Top 25 Percent Comparative Academic Growth.

Clark also offers athletic programs sanctioned by the University Interscholastic League.

These include Football, Boys and Girls Basketball, Boys and Girls Soccer, Baseball, Volleyball, Track and Field, Swimming and Diving, Softball, Tennis, Golf, and Cross Country.

Clark also offers most, if not all, of the Academic UIL events, including Academic Decathlon, Social Studies, Science, Current Issues, One Act Play, Computer Science, Computer Applications, Calculator Applications, Literary Criticism, CX Debate, Lincoln-Douglas Debates, various speaking competitive events, various journalistic competitive events, and Air Force Junior ROTC.

Track and Field: 2012 – Men's district Champions in the 27-5A meet by one point over Brandeis High School.