Summerfield Schools is a public school district in Petersburg, Michigan. The district includes all of Summerfield Township, as well as a small portion of neighboring Dundee and Ida townships.SchoolsElementary schoolsSummerfield Elementary SchoolSecondary schoolsSummerfield Junior High SchoolSummerfield High SchoolSportsSummerfield Sports is in the Tri-County Conference. The Tri-County Conference is a nine-school league in southeast Michigan, covering Monroe, Lenawee and Washtenaw Counties. Summerfield has Sports in Baseball, Boys and Girls Basketball, Football, Softball, Girls Volleyball, Golf, Cross Country, and Track.