According to the 1998 census, the total population of Orakzai Agency was 225 million. However, according to recent estimates from 2012, the population of the area has increased to 304 million.

Presently the Orakzai tribes consist of; Ismailzai, Daulatzai, Alizai, Muhammad Khel, Sultanzai, Ali Khel, Malla Khel, Mishti and Sheikhan. In total, there are about twenty four major sections of these tribes. The largest tribe of them all is Ali Khel.