The 2020 census recorded Indonesia's population as 270.2 million, the fourth largest in the world, with a moderately high population growth rate of 1.25%. Java is the world's most populous island, where 56% of the country's population lives. The population density is 141 people per km2 (365 per sq mi), ranking 88th in the world, although Java has a population density of 1,067 people per km2 (2,435 per sq mi). In 1961, the first post-colonial census recorded a total of 97 million people. It is expected to grow to around 295 million by 2030 and 321 million by 2050. The country currently possesses a relatively young population, with a median age of 30.2 years (2017 estimate).