The size of Stratham is approximately 40.8 square kilometres. It has 3 parks covering nearly 7.4% of total area. The population of Stratham in 2011 was 710 people. By 2016 the population was 723 showing a population growth of 1.8% in the area during that time. The predominant age group in Stratham is 40-49 years. Households in Stratham are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Stratham work in a professional occupation. In 2011, 87.2% of the homes in Stratham were owner-occupied compared with 93.4% in 2016. Currently the median sales price of houses in the area is $694,000.