The estimated population in Dandenong South as of 2011 census was 358 and the postcode of this region is 3175. The land area of this region covers about 6km2.
The suburbs which are surrounded by Dandenong South are Keysborough to the west, Dandenong to the north-west, Bangholme to the south-west, Lyndhurst to the south, Hallam to the east, Eumemmerring to the north-east, Hampton Park to the south-east and Doveton to the north.
The average recorded rainfall throughout the year is around 765mm. With regard to the temperature, the average maximum temperature hovers around 20 degree Celsius. The minimum temperature, however, is below 10 degree Celsius.