Mount Somers is described by Statistics New Zealand as a rural settlement, and covers . It is part of the
Ashburton Forks statistical area. Mount Somers had a population of 147 at the
2018 New Zealand census, an increase of 12 people (8.9%) since the
2013 census, and an increase of 30 people (25.6%) since the
2006 census. There were 63 households. There were 75 males and 72 females, giving a sex ratio of 1.04 males per female. The median age was 45.4 years (compared with 37.4 years nationally), with 33 people (22.4%) aged under 15 years, 15 (10.2%) aged 15 to 29, 72 (49.0%) aged 30 to 64, and 27 (18.4%) aged 65 or older. Ethnicities were 95.9% European/Pākehā, 8.2% Māori, and 2.0% Pacific peoples (totals add to more than 100% since people could identify with multiple ethnicities). Although some people objected to giving their religion, 53.1% had no religion, 38.8% were Christian and 2.0% were Buddhist. Of those at least 15 years old, 15 (13.2%) people had a bachelor or higher degree, and 27 (23.7%) people had no formal qualifications. The median income was $24,600, compared with $31,800 nationally. The employment status of those at least 15 was that 57 (50.0%) people were employed full-time, 21 (18.4%) were part-time, and 3 (2.6%) were unemployed. ==Education==