DemographicsWickham (Tas.) is approximately 40.03 square kilometres. In 2016 the population of Wickham (Tas.) was 9. The population is 63% male and 38% female. On average the monthly mortgage repayments in Wickham (Tas.) are $0 to $299. The most common weekly income bracket is $0 to $149 per week. Weekly rents in the area are on average $0 to $74.