This paper presents the population composition and details of the economic, socio-cultural, physical environmental attributes of the households of the major Scheduled Tribes of Rajasthan, namely, Sahariya, Mina, Bhil, Kathodi, Damor and Garasia belonging to five districts, namely, Baran, Sawai Madhopur, Udaipur, Dungarpur and Sirohi in Rajasthan. All the measures of population composition indicate the demographic backwardness of the Scheduled Tribes, in general. Individually speaking, however, the position of Minas, a land owning economically welloff Scheduled Tribe, appears relatively better. The paper also includes some comparisons of the findings with the estimates of the 1991 census.