White flight from urban public schools has been well documented, but little attention has been paid to middle-class reinvestment in urban schools. This article combines findings from interviews with middle-class parents of Boston Public School students with demographic data from the city's public elementary schools to examine the motivations of these parents and assess the potential ramifications of their decisions. While providing their children with a diverse school environment is a major consideration for these families, the process by which they select schools may, in the aggregate, contribute to an increase in racial segregation across the district as a whole. (Contains 2 tables, 3 figures and 13 notes.)