Lands administrative divisions of Australia are the cadastral divisions of Australia for the purposes of identification of land to ensure security of land ownership. Most states term these divisions as counties, parishes, hundreds, and other terms. The eastern states of Queensland, New South Wales, Victoria and Tasmania were divided into counties and parishes in the 19th century, although the Tasmanian counties were renamed land districts in the 20th century. Parts of South Australia (south-east) and Western Australia (south-west) were similarly divided into counties, and there were also five counties in a small part of the Northern Territory. However South Australia has subdivisions of hundreds instead of parishes, along with the Northern Territory, which was part of South Australia when the hundreds were proclaimed. There were also formerly hundreds in Tasmania. There have been at least 600 counties, 544 hundreds and at least 15,692 parishes in Australia, but there are none of these units for most of the sparsely inhabited central and western parts of the country.