The size of Deviot is approximately 10.7 square kilometres. It has 5 parks covering nearly 2.2% of total area. The population of Deviot in 2011 was 462 people. By 2016 the population was 348 showing a population decline of 24.7% in the area during that time. The predominant age group in Deviot is 60-69 years. Households in Deviot are primarily childless couples and are likely to be repaying $1000 - $1399 per month on mortgage repayments. In general, people in Deviot work in a professional occupation. In 2011, 85.7% of the homes in Deviot were owner-occupied compared with 93% in 2016. Currently the median sales price of houses in the area is $560,000.