ENCOMPASSING an area of 2,560-square kilometers (990 sq. mi), IKN Nusantara is situated on the east coast of Borneo, the world's third largest island. The city shares land border with the province of East Kalimantan and has the coastal line in the east to Makassar Strait and in the south to Balikpapan Bay as well as features a hilly landscape.

The designated government central area (Kawasan Inti Pusat Pemerintahan) encompasses 68.56-square kilometers (26.47 sq. mi), the capital region (Kawasan Ibu Kota Negara) a total of 561.80 km2 (216.91 sq. mi) and the rest as the extended capital region (Kawasan Perluasan Ibu Kota Negara).