It opened with grades 9 -- 11 on August 25 , 2009 , and graduated its first senior class on June 11 , 2011 .
Cox Mill High School is a comprehensive public high school in Concord , North Carolina .
Cox Mill High School opened with grades 9 -- 11 on August 25 , 2009 , and graduated Cox Mill High School 's first senior class on June 11 , 2011 .
Cox Mill High School is a comprehensive public high school in Concord , North Carolina .