Rotokauri covers and had an estimated population of as of with a population density of people per km2. Rotokauri had a population of 1,011 in the
2023 New Zealand census, a decrease of 6 people (−0.6%) since the
2018 census, and an increase of 99 people (10.9%) since the
2013 census. There were 519 males and 492 females in 333 dwellings. 2.1% of people identified as
LGBTIQ+. The median age was 44.3 years (compared with 38.1 years nationally). There were 183 people (18.1%) aged under 15 years, 171 (16.9%) aged 15 to 29, 477 (47.2%) aged 30 to 64, and 183 (18.1%) aged 65 or older. ==Education==