DemographicsLefthand Branch is approximately 65.77 square kilometres. In 2016 the population of Lefthand Branch was 79. The population is 55% male and 45% female. On average the monthly mortgage repayments in Lefthand Branch are $1000 to $1399. The most common weekly income bracket is $650 to $799 per week. Weekly rents in the area are on average $0 to $74.