This study attempts to clarify the characteristics of and changes in inter-state migration in India since economic liberalization. Specifically, the focus is on the spatial concentration patterns of migration, with the analysis based on the Census of India 1991 and 2011 data using the coefficient of variation (CV). As a result of the analysis, it was found that states with a high CV of in-migration and states with a high CV of out-migration have certain distinct regional characteristics. Looking at the changes between the two periods, it can be seen that the fundamental pattern of inter-state migration in 1991 persisted in 2011 as well. However, when the trends of each state were examined in detail, it was found that the western and southern states, which showed changes in in-migration patterns, and Delhi, which showed changes in its out-migration pattern, exhibited characteristic trends.