The size of Gulargambone is approximately 811 square kilometres. It has 8 parks covering nearly 1.8% of total area. The population of Gulargambone in 2011 was 582 people. By 2016 the population was 566 showing a population decline of 2.7% in the area during that time. The predominant age group in Gulargambone is 50-59 years. Households in Gulargambone are primarily childless couples and are likely to be repaying $300 - $449 per month on mortgage repayments. In general, people in Gulargambone work in a managers occupation. In 2011, 56% of the homes in Gulargambone were owner-occupied compared with 57.5% in 2016. Currently the median sales price of houses in the area is $86,250.