DemographicsFrenchmans is approximately 34.61 square kilometres. In 2016 the population of Frenchmans was 13. The population is 43% male and 57% female. On average the monthly mortgage repayments in Frenchmans are $0 to $299. The most common weekly income bracket is $400 to $499 per week. Weekly rents in the area are on average $0 to $74.