The Gautreaux demonstration, the result of a series of court actions, is one of the most significant and visible Federal efforts to explore ways of providing metropolitan-wide housing opportunities for low-income Americans. The demonstration makes it possible for a small number of tenants in and applicants for public housing in Chicago to move to any part of the Chicago metropolitan area and to neighborhoods W1ich contain only a small number of minority families. Using housing market, demographic and personal interview data, this study assesses the impact of the demonstration on participating families.