The earliest large cities in colonial north America were located along the Atlantic coast.
Alice Springs is actually a town, but it is a large town, and is located in central Australia.
When white people arrived in what is now Australia they came by boat. Coastal Setlements that later grow to large Cities happen when people enter the country by boat. Most of the land that can be used to grow food in Australia is on the coast. That's some of the reasons
The large cities of the US are spread widely from the west coast to the east coast and north to south.
The large majority of Australians live along the Eastern Coast. Australia's 3 biggest cities sit along this coast - Melbourne, Sydney, Brisbane. You can see city populations here - http://en.wikipedia.org/wiki/List_of_cities_in_Australia_by_population
The northern coast of Australia does not have a specific name. To the east is a large gulf known as the Gulf of Carpentaria.
AUSTRALIA
Christian areas in AD 325 were located near large cities and mostly along the coasts and rivers because it enabled people to travel easily in search for food and water.
The Great Barrier Reef is the largest landmark in Australia, as it runs 2300 km down the coast of Queensland.
The county of Dublin and the city of Dublin are on the east coast of Ireland.
Of course, Australia is like any other large country. It has big cities and people work in the cities.
Australia is one of the least densely populated nations in the world. In 2012, the population density was just three people per kilometer.