DemographicsBellingham is approximately 11.25 square kilometres. In 2016 the population of Bellingham was 60. The population is 56% male and 44% female. On average the monthly mortgage repayments in Bellingham are $1000 to $1399. The most common weekly income bracket is $400 to $499 per week. Weekly rents in the area are on average $0 to $74.