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
Demographics of the Cayman Islands more even division of African and European ancestry. Those of mixed race make up 40% of the population, with blacks and whites following at 20% each. The remaining 20% belong to various immigrant ethnic groups. According to CIA factbook of 2013, Caymanian people of mixed-race of mixed black African and white European ancestry are the plurality ethnic group in the Cayman Islands, accounting for 40% of the country's population, with white 20%, black 20%, and expatriates of various ethnic groups 20%. The official language of the Cayman Islands is English. Islanders' accents retain elements passed down from English, Scottish, and