South Australia contains 324 separate Protected Areas with a total land area of 21,630,995 hectares(21.97% of the state’s area). 18 of these are National parks, totalling 4,337,430 hectares (4.41% of the state’s area).
... city. The population density is 481.1/km² (1,246.0/mi²). There are 23,525 housing units at an average density of 212.1/km² (549.3/mi²). The racial ...