Where do most Tamils live in Australia?

As per the 2011 census, over 39.59% of Tamil speaking Australians were born in Sri Lanka, 34.89% in India and 13.05% in Australia. They live concentrated in Wentworthville, Pendle Hill, Girraween, Toongabbie and Strathfield in Sydney and in Glen Waverley and Dandenong North in Melbourne.

Why did Sri Lanka migrate to Australia?

The majority of Tamils born in Sri Lanka came to Australia after 1983 when Sri Lanka faced ethnic turmoil and unrest (Black July). The Western suburbs of Sydney and the South Eastern Suburbs of Melbourne have a relatively high number of Tamil speaking people.