East Nusa Tenggara is the only province in Indonesia where most people are Christian It is the only Indonesian province where Roman Catholicism is the main religion. The area of the province is 47,245.82 km. The population at the 2010 Census was 4,683,827. An official estimate of the population in January 2014 was 5,070,746. East Nusa Tenggara is one of the least developed provinces in Indonesia. Tourism is growing here. The most well-known attractions are Labuan Bajo, Komodo National Park, and Mount Kelimutu.