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%).
Unreached people group Unreached people group In Christianity, an unreached people group refers to an ethnic group without an indigenous, self-propagating Christian church movement. Any ethnic or ethnolinguistic nation without enough Christians to evangelize the rest of the nation is an "unreached people group". It is a missiological term used by Evangelical Christians. The Lausanne Committee for World Evangelization defines a people group as "the largest group within which the Gospel can spread as a church planting movement without encountering barriers of understanding or acceptance." "Nation" is sometimes used interchangeably for "people group". The term is sometimes applied to ethnic groups in which