Grand Valley Senior Living Community Martinsville, IN - Assisted Living Community size: Large (26-100) Get Prices & Availability (800) 341-4753 Office Grand Valley Senior Living Community is a sensational assisted living community in Martinsville, Indiana. It is within storied Morgan County which is part of the Hoosier State. + Read more Share this listing: Full Screen Gallery Martinsville Senior Services Near Me None Listed Martinsville Senior Living Near Me