Lansing Eastern High School is a public high school in Lansing, Michigan as part of the Lansing School District. Eastern International Baccalaureate Magnet High School is the only high school in mid-Michigan authorized to offer students the opportunity to earn an International Baccalaureate Diploma. Eastern also has the second-largest alumni association in the United States. It was located on the city's east-side on Pennsylvania Avenue, one block north of Michigan Avenue but is now located on Marshall Street on the corner of Marshall Street and Saginaw Street. The building was connected with former Pattengill Middle School next to Sparrow Hospital. In 2007, Sparrow purchased the Pattengill property to create a parking lot. With the deconstruction of Pattengill Middle School, Lansing Easter