Anthropologists have also attempted to classify the tribal groups according to their demographic size. It is interesting to note that tribal populations of India vary immensely with regards to their respective sizes.
On one hand we find tribal communities like the Gonds, Bhils, (both designated with their generic names) with a population of about forty lakhs each followed by the Santhals with a population of more than thirty lakhs. They are followed by the Oraons, Minas and the Mundas who number about more than ten lakhs each. They are followed by the Hos, Khonds and the Kols with population strength of more than five lakhs.
Yet another more than forty tribes, comprising about ten percent of the total tribal population of India have a population ranging from one to five lakhs. These are the Adis, Baigas, Bhumijs, Bodos-Kacharis, Dhodias, Garos, Kacharis, Kharias, Kharwars, Khasis, Kolhas, Korkus, Lodhas, Mizos, Rabhas, Saoras,
Tripuris, Warlis, Yenadis and Yerukulas,to name a few.
On the contrary there are communities like some Andamanese groups who number even less than hundred each. There is a lot of variation in size even within the tribal groups who lie in between these two categories- somewhere from between less than 1000 to less than a million