 In the 2011 census , the population of the Summer Hill was 6 @,@ 587 , in an area of 1 @.@ 1 square kilometres . The population was 52 % females , 48 % males . 42 % of the population was born overseas with China ( 6 % ) , England ( 4 % ) and New Zealand ( 3 % ) the most common . The five strongest religious affiliations in the area were in descending order : no religion ( 34 % ) , Catholic ( 25 % ) , Anglican ( 11 % ) , Buddhism ( 4 % ) and Hinduism ( 3 % ) . The majority of dwelling were flats , units or apartments ( 57 % ) followed by separate houses ( 24 % ) and semi @-@ detached , terrace houses , or townhouses ( 17 % ) . 
