Team Logo. The Kingsport Mets are a team in the Appalachian League. They are the Rookie affiliate of the New York Mets. They were once housed at a local high school. Retrieved from "https://prosportsteams.fandom.com/wiki/Kingsport_Mets?oldid=8459" Categories: Appalachian League teams Teams in Tennessee Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.