Number of customers of major banks Australia 2020

Of Australia's big four banks, the Commonwealth Bank of Australia had the highest number of customers. As of June 30, 2020, Commonwealth Bank had approximately 17 million customers, three million more than Westpac Banking Corporation. 

 Commonwealth Bank of Australia 

The Commonwealth Bank of Australia, also named CommBank, is not only the most dominant bank in Australia, but also has a presence in New Zealand, Asia, the United States, and the United Kingdom. The total assets of CommBank exceeded one billion Australian dollars in 2020 and continued to increase through to the 2021 financial year. Along with leading the banking sector in the country, CommBank was also one of the most valuable brands in Australia, just falling behind Telstra and Woolworths.  

 Consumer banking 

  When looking at consumer banking customer satisfaction in Australia, the big four struggled to keep up with the customer-owned mutual bank, Heritage Bank. Nevertheless, Australian consumers seemed to be largely satisfied with their current banks, with less than a quarter of respondents likely to change their primary bank according to a recent survey.