Census 2000 confirmed some common perceptions; that Mainstreet is showing its age. A population shift has brought young people into the booming urban economy, a trend that's already producing significant economic effects. As a rural workforce of farmers and factory workers settle into retirement, they are no longer replaced by their children. In the latest installment of our series "Aging Gracefully" Mainstreet Radio's Erin Galbally reports on the changes in store for rural Minnesota. BACKANNOUNCE: As our series "Aging Gracefully" continues, tomorrow a look at one small town on the North Shore coming up with creative ways to meet the needs of older residents. There's more information on our series, as well as images and statistics at MinnesotaPublicRadio.o-r-g