Although every state gained population during the 1990s, the magnitude of domestic migration for the 50 states and the District of Columbia varied widely, according to Census 2000 data. This report highlights some of the most dramatic patterns of state-to-state migration between 1995 and 2000 for the 50 states and the District of Columbia. It identifies the largest interstate migration flows, examines origins and destinations of flows for the states with the highest and lowest rates of net domestic migration, and notes the pairs of migration flows that are the most imbalanced.