DemographicsCalga is approximately 17.54 square kilometres. In 2016 the population of Calga was 142. The population is 50% male and 50% female. On average the monthly mortgage repayments in Calga are $2400 to $2999. The most common weekly income bracket is $650 to $799 per week. Weekly rents in the area are on average $275 to $349.
DescriptionCalga is a suburb of the Central Coast region of New South Wales, Australia, located 62 kilometres (39 mi) north of Sydney. Calga is part of the Central Coast Council local government area. Calga is home to a major interchange on the Sydney-Newcastle Freeway and the Australia Walkabout Wildlife Park.