DemographicsInvergowrie is approximately 41.78 square kilometres. In 2016 the population of Invergowrie was 775. The population is 50% male and 50% female. On average the monthly mortgage repayments in Invergowrie are $1800 to $2399. The most common weekly income bracket is $800 to $999 per week. Weekly rents in the area are on average $275 to $349.