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%).
Rejang people Rejang people Rejangese people (Rejangese language: "Tun Hejang" or "Tun Ejang") are an Austronesian ethnolinguistic group, native to the some parts of Bengkulu Province and South Sumatera Province in the southwestern part of Sumatera Island, Indonesia. They occupied some area in an cool mountain slopes of the Barisan mountain range in both sides of Bengkulu and South Sumatra. With approximately more than 1,3 million people, they form the largest ethnic group in Bengkulu Province. Rejangese people predominantly live as a majority in 5 out 10 regencies and city of Bengkulu Province, while the rest of them who lives in South