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%).
Sukuma people Sukuma people The Sukuma are a Bantu ethnic group inhabiting the southeastern African Great Lakes region. They are the largest ethnic group in Tanzania, with an estimated 8.9 million members or 16 percent of the country's total population. Sukuma means "north" and refers to "people of the north." The Sukuma refer to themselves as "Basukuma" (plural) and "Nsukuma" (singular). They speak Sukuma, which belongs to the Bantu branch of the Niger-Congo family. The Sukuma live in northwestern Tanzania on or near the southern shores of Lake Victoria, and various areas administrative districts of the Mwanza, southwestern tip of Mara Region,