DemographicsJudbury is approximately 119.8 square kilometres. In 2016 the population of Judbury was 392. The population is 50% male and 50% female. On average the monthly mortgage repayments in Judbury are $1400 to $1799. The most common weekly income bracket is $300 to $399 per week. Weekly rents in the area are on average $200 to $224.