Ethnic groups in Indonesia Ethnic groups in Indonesia There are over 300 ethnic groups in Indonesia including Javanese, Sundanese, and Batak. Based on ethnic group, the largest ethnic group in Indonesia is the Javanese who make up about 40% of the total population. The Javanese are concentrated on the island of Java but millions have migrated to other islands throughout the archipelago because of the transmigration program. The Sundanese, Malay, and Madurese are the next largest groups in the country. Many ethnic groups, particularly in Kalimantan and Papua, have only hundreds of members. Most of the local languages belong to Austronesian language family, although
Muslims (ethnic group) nation (Serbo-Croatian uses capital letters for names of peoples but small for names of adherents). After the dissolution of Yugoslavia in the early 1990s, the majority of these people, around two million, mostly located in Bosnia and Herzegovina and the region of Sandžak, declare as ethnic Bosniaks ("Bošnjaci", sing. "Bošnjak"). On the other hand, some still use the old name "Muslimani" (Muslims), mostly outside Bosnia and Herzegovina. The election law of Bosnia and Herzegovina as well as the Constitution of Bosnia and Herzegovina, recognizes the results from 1991 population census as results referring to Bosniaks. Muslims (ethnic group) Muslims (Serbo-Croatian,