Mokai locality covers . It is part of the larger
Marotiri statistical area. Mokai had a population of 153 in the
2023 New Zealand census, a decrease of 21 people (−12.1%) since the
2018 census, and a decrease of 21 people (−12.1%) since the
2013 census. There were 75 males, 78 females, and 3 people of
other genders in 51 dwellings. 2.0% of people identified as
LGBTIQ+. The median age was 29.1 years (compared with 38.1 years nationally). There were 33 people (21.6%) aged under 15 years, 45 (29.4%) aged 15 to 29, 60 (39.2%) aged 30 to 64, and 15 (9.8%) aged 65 or older. ==Education==