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%).
Madurese people Madurese people The Madurese (sometimes Madurace or Madhure; also known as Orang Madura and Suku Madura in Indonesian) are an ethnic group originally from the island of Madura now found in many parts of Indonesia, where they are the third-largest ethnic group by population. Common to most Madurese throughout the archipelago is the Islamic religion and the use of the Madurese language. The Madurese are a religious ethnicity, often affiliated with Nahdlatul Ulama, a moderate Indonesian Muslim organization. Pesantren has a pivotal role in Madurese life. While the Madurese have their roots on Madura off the northeastern coast of Java,