DemographicsGarthowen is approximately 73.06 square kilometres. In 2016 the population of Garthowen was 150. The population is 51% male and 49% female. On average the monthly mortgage repayments in Garthowen are $1800 to $2399. The most common weekly income bracket is $800 to $999 per week. Weekly rents in the area are on average $0 to $74.
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