The size of Merewether Heights is approximately 0.6 square kilometres. It has 3 parks. The population of Merewether Heights in 2011 was 1,432 people. By 2016 the population was 1,385 showing a population decline of 3.3% in the area during that time. The predominant age group in Merewether Heights is 0-9 years. Households in Merewether Heights are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Merewether Heights work in a professional occupation. In 2011, 89.3% of the homes in Merewether Heights were owner-occupied compared with 89.7% in 2016. Currently the median sales price of houses in the area is $1,560,000.