Built in the similar style as its sister school, Ardrey Kell High School, Mallard Creek is a three-story, pre-cast concrete building, surrounding a large central courtyard. The school is located in a rural section of Mecklenburg County, near the proposed I-485 belt loop, and the Highland Creek community. The concrete is colored in certain exterior areas to represent the school's colors: Navy Blue, Cardinal Red and Vegas Gold. At over 351,000 square feet (32,600 m2), it is one of the largest single-school buildings in the Piedmont area of North Carolina, and the largest school in the Charlotte-Mecklenburg School District. The school has a football stadium (with a turf field), a baseball–softball complex, and a large gymnasium, as well as an adjoining practice gymnasium, tennis courts, and soccer fields. The school shares practice fields and the athletic stadium with nearby Mallard Creek Community Park, and local community athletic groups.
Mallard Creek's teams are known as the "Mavericks". The school competes in the MeCKa 4A athletic conference. The school's football team won the NCHSAA State 4AA Championship in 2013, and again in 2014. In track and field the men's 4x200-meter relay team won the 4A state championship in 2013, and the men's 4x100 meter team won the 4A state championship in 2014. Alycia Springs was the 2014 4A women's track and field shot put state champion.