Demographics of Indonesia local ethnic languages are the first language of most Indonesians and are still important. Indonesia demographic composition has a relatively young population. According to 2011 estimate, total median age of Indonesia is 28.2 years. Total Fertility Rate (TFR) (Wanted Fertility Rate) and Crude Birth Rate (CBR): Total fertility rate (TFR) and population over age 60 by region as of 2010: Source: "UN World Population Prospects" There are over 300 ethnic groups in Indonesia. 95% of those are of Native Indonesian ancestry. Javanese is the largest group with 100 million people (42%), followed by Sundanese who number nearly 40 million (15%).
Malays (ethnic group) Malays (ethnic group) Malays (, Jawi: أورڠ ملايو) are an Austronesian ethnic group that predominantly inhabit the Malay Peninsula, eastern Sumatra and coastal Borneo, as well as the smaller islands which lie between these locations — areas that are collectively known as the Malay world. These locations today are part of the modern nations of Malaysia, Indonesia, Brunei, Singapore, and southern Thailand. There is considerable genetic, linguistic, cultural, and social diversity among the many Malay subgroups, mainly due to hundreds of years of immigration and assimilation of various regional ethnicity and tribes within Maritime Southeast Asia. Historically, the Malay population