Kennedy Junior High School 2929 Green Trails Dr, Lisle, IL60532 Kennedy Junior High School is part of Naperville Community Unit School District 203. Kennedy has a new principal…More for the 2010-11 school year. Brian Valek is taking the helm, replacing Don Perry, who served the school for 13 years. In 2010, the school was named the state's seventh highest-achieving middle school by the Chicago Sun-Times. Three student teams from Kennedy won highest honors in the WordMasters Challenge, a national language arts competition with more than 220,000 students participating each year.