7. Adelaide, South Australia
Numbeo rank: 8
Expatistan rank: 6
Average: 7
Named after King William IV’s queen consort Adelaide of Saxe-Meningen, Adelaide was planned as the capital of the newly-settled British province in Australia. It is home to a majority of Australia’s defense companies such as BAE Systems and Lockheed Martin. Adelaide is also known for its many festivals, and ranks as one of the world’s most livable cities, and the most livable city in Australia from 2011 to 2013. It’s no wonder living here isn’t cheap at all!