Medfield High School 88r South St, Medfield, MA02052 The community takes pride in its school system and the success of students at Medfield High School. With 937 students…More enrolled in grades 9 - 12, the school has received state and national distinctions based on student and school performances. Among the distinctions: 2008 No Child Left Behind-Blue Ribbon School, named by the United States Department of Education and in 2009, the US News and World Report named MHS as a Silver Medal School. Medfield High also scores school-wide extremely well in standardized testing. Warriors' athletics are members of the Tri-Valley League and roughly 75 percent of MHS students participate in 27 sports offered at varsity, junior varsity and freshman levels.