The analysis of density and distribution of population is fundamental for understanding the population geography of any area. The population distribution is a spatial arrangement of people in a region, which is mainly based on the aggregate of investigation about the people within small areal units of region. Population distribution is a dynamic which is ever changing, and its causes and effects vary in spatio-temporal frame. Keeping this aspect in view the present study focuses on the status of distribution, density, and concentration in the newly formed Palghar district of Maharashtra state which is largely dominated by tribal population. The present work is an attempt to study spatio-temporal distribution of tribal population at taluka level in Palghar district based on census data of India from 1991 to 2011.