Hadji Muhtamad, officially the Municipality of Hadji Muhtamad, is a municipality in the province of Basilan, Philippines. According to the 2…Hadji Muhtamad, officially the Municipality of Hadji Muhtamad, is a municipality in the province of Basilan, Philippines. According to the 2020 census, it has a population of 26,867 people. Hadji Muhtamad was created out of the 10 barangays of Lantawan that were not on Basilan Island, through Muslim Mindanao Autonomy Act No. 200, which was subsequently ratified in a plebiscite held on August 25, 2007.