This study focuses on how the demographic change occurring within two county-wide school districts and communities in the South, including the creation of suburban enclaves alongside central cities overwhelmingly made up of low-income students of color, influences community support for diversity policies within two school districts with a history of voluntary integration efforts: Jefferson County Public Schools (Louisville, KY) and the Wake County Public School System (Raleigh, NC). By focusing on two urban-suburban school districts, our research extends prior work examining the politics of diversity in urban school districts to county-wide school districts experiencing rapid suburbanization and stratification.