Northern Territory

The Northern Territory (abbreviated as NT; known formally as the Northern Territory of Australia and informally as the Territory) is an Australian internal territory in the central and central-northern regions of Australia. The Northern Territory shares its borders with Western Australia to the west (129th meridian east), South Australia to the south (26th parallel south), and Queensland to the east (138th meridian east). To the north, the Northern Territory looks out to the Timor Sea, the Arafura Sea, and the Gulf of Carpentaria, including Western New Guinea and various other islands of the Indonesian archipelago.

The NT covers 1,347,791 square kilometres (520,385 sq mi), making it the third-largest Australian federal division, and the 11th-largest country subdivision in the world. It is sparsely populated, with a population of only 260,400 as of March 2025^[update] – fewer than half the population of Tasmania. The largest population centre is the capital city of Darwin, having about 52.6% of the Territory's population. The largest inland settlement is Alice Springs with a population of about 25,000 people.

The archaeological history of the Northern Territory may have begun more than 60,000 years ago when humans first settled this region of the Sahul Continent. From at least the 18th century, Makassan traders began a relationship with the indigenous people of the Northern Territory around the trading of trepang. The coast of the Territory was first seen by Europeans in the 17th century. The British were the first Europeans to attempt to settle the coastal regions. After three failed attempts to establish a settlement (1824–1828, 1838–1849, and 1864–1866), success was achieved in 1869 with the establishment of a settlement at Port Darwin.

The economy is based largely on mining and petroleum, which during 2018–2019 contributed 23% of the gross state product, or $5.68 billion, accounting for 92.4% of exports.

The Territory's population is concentrated in coastal regions and along the Stuart Highway. Besides the capital of Darwin, the major settlements are (in order of size) Palmerston, Alice Springs, Katherine, Nhulunbuy and Tennant Creek. Residents of the Northern Territory are often known as "Territorians".

Humans have lived in the present area of the Northern Territory since at least 48,400 to 68,700 years ago.

From the 17th or 18th century AD onwards, traders from Sulawesi established extensive seasonal trade links with the Indigenous peoples of Kimberley region, the modern-day Northern Territory, and Arnhem Land. They collected trepang (sea cucumber) for Chinese markets and introduced several goods and technologies to the Indigenous peoples. There is significant evidence of contact with Makassan fishers in examples of Indigenous Australian rock art and bark painting of northern Australia, with the Makassan perahu a prominent feature.

With the coming of the British, there were four early attempts to settle the harsh environment of the northern coast, of which three failed in starvation and despair. The land now occupied by the Northern Territory was part of colonial New South Wales from 1825 to 1863, except for a brief time from February to December 1846, when it was part of the short-lived colony of North Australia. The Northern Territory was part of South Australia from 1863 to 1911, and under its administration the Overland Telegraph Line was constructed between 1870 and 1872.