Statistics New Zealand describes Opononi as a rural settlement. It covers 2.3% of people identified as
LGBTIQ+. The median age was 52.7 years (compared with 38.1 years nationally). There were 51 people (19.3%) aged under 15 years, 30 (11.4%) aged 15 to 29, 99 (37.5%) aged 30 to 64, and 84 (31.8%) aged 65 or older.
Waipoua Forest statistical area Waipoua Forest contains Opononi and Ōmāpere, and covers . It had an estimated population of as of with a population density of people per km2. Waipoua Forest had a population of 1,305 in the
2023 New Zealand census, an increase of 90 people (7.4%) since the
2018 census, and an increase of 270 people (26.1%) since the
2013 census. There were 651 males, 651 females and 3 people of
other genders in 546 dwellings. 3.0% of people identified as
LGBTIQ+. The median age was 52.7 years (compared with 38.1 years nationally). There were 225 people (17.2%) aged under 15 years, 138 (10.6%) aged 15 to 29, 564 (43.2%) aged 30 to 64, and 375 (28.7%) aged 65 or older. ==Education==