The size of Lochaber is approximately 338.9 square kilometres. The population of Lochaber in 2011 was 261 people. By 2016 the population was 99 showing a population decline of 62.1% in the area during that time. The predominant age group in Lochaber is 50-59 years. Households in Lochaber are primarily childless couples and are likely to be repaying under $300 per month on mortgage repayments. In general, people in Lochaber work in a managers occupation. In 2011, 76.4% of the homes in Lochaber were owner-occupied compared with 68.4% in 2016.