High Quality Content by WIKIPEDIA articles! St Kilda is a seaside suburb in Adelaide, South Australia that is home to an award-winning adventure playground, tram museum, mangrove forest walk and an abundance of birdlife. St Kilda has only a small number of houses and a 2006 population of 246. There is a single connecting road to the rest of Adelaide which, where the road enters the suburb`s residential area, is surrounded by salt crystallisation lagoons used in the manufacture of soda ash.