Hobart is the capital and largest city of Tasmania. It is also the most populous city in the state. At the 2016 census, there were 222,356 people in the Greater Hobart area making it the second least populated capital city in Australia. The City of Hobart local government area had a population of 50,439.

Adelaide is the capital city of South Australia, the state's largest city and the fifth-most populous city of Australia. "Adelaide" may refer to either Greater Adelaide (including the Adelaide Hills) or the Adelaide city centre. It had a population of 1,376,601 in 2020.

Wellington is the capital city of New Zealand. It is located at the south-western tip of the North Island, between Cook Strait and the Remutaka Range. As of June 2021, the Wellington urban area had a resident population of 215,900.

Sydney is the capital city of the state of New South Wales, and the most populous city in both Australia and Oceania. The 2021 census recorded the population of Greater Sydney as 5,231,150, meaning the city is home to approximately 66% of the state's population. Nicknames of the city include the 'Emerald City' and the 'Harbour City'.

Tonga is a Polynesian country, and also an archipelago comprising 169 islands, of which 36 are inhabited. The archipelago's total surface area is about 750 sq ki (290 sq mi) scattered over 700,000 sq ki (270,000 sq mi) of the southern Pacific Ocean. As of 2021, Tonga had a population of 104,494, 70% of whom resided on the main island, Tongatapu.

Papua New Guinea is a country located in the southwestern Pacific Ocean, just north of Australia. It is one of the most culturally diverse countries in the world, with over 800 languages spoken throughout its various regions. It had a population of 8,935,000 in 2022.

Perth is the capital city of Western Australia, located on the west coast of Australia. It is the fourth largest city in Australia, with a population of approximately 2.1 million people in the metropolitan area.

Canberra is the capital city of Australia, located in the southeastern part of the country. It is situated approximately 280 kilometers southwest of Sydney and 660 kilometers northeast of Melbourne. Canberra has a population of around 430,000 people, making it Australia's eighth largest city.

Melbourne is the capital city of the state of Victoria in Australia. It is the second-most populous city in Australia after Sydney and is known for its vibrant arts and culture scene, sports, and high quality of life. It has a population of approximately 5 million people, making it the second-largest city in Australia after Sydney. (19% of the population of Australia, as per 2020).

Vanuatu is a small island nation located in the South Pacific Ocean, east of Australia and north of New Zealand. The country is made up of 83 islands, with a total land area of around 12,189 square kilometers (4,707 square miles). It had a population of 307,815 in 2020.