The size of Seaford is approximately 3.1 square kilometres. It has 13 parks covering nearly 8.4% of total area. The population of Seaford in 2011 was 4,268 people. By 2016 the population was 4,452 showing a population growth of 4.3% in the area during that time. The predominant age group in Seaford is 30-39 years. Households in Seaford are primarily childless couples and are likely to be repaying $1400 - $1799 per month on mortgage repayments. In general, people in Seaford work in a trades occupation. In 2011, 66% of the homes in Seaford were owner-occupied compared with 62.7% in 2016. Currently the median sales price of houses in the area is $530,000.