Williamstown is a suburb of Melbourne, Victoria,
Australia, 9 km south-west of Melbourne's central
business district in the local government area of
the City of Hobsons Bay.
In the 2011 Australian census the population of
Williamstown was 13,203 when there were 6,747
Females and 6,456 Males living there. The median
age for people living in Williamstown was 39.