Stats NZ describes Tahuna as a rural settlement. It covers and had an estimated population of as of with a population density of people per km2. Tahuna is part of the larger Tahuna-Mangateparu statistical area. '' and barge unloading at Tahuna in 1922. Steamers continued for another 5 years Tahuna had a population of 135 in the
2023 New Zealand census, unchanged since the
2018 census, and a decrease of 9 people (−6.2%) since the
2013 census. There were 60 males and 72 females in 45 dwellings. 2.2% of people identified as
LGBTIQ+. The median age was 40.9 years (compared with 38.1 years nationally). There were 24 people (17.8%) aged under 15 years, 21 (15.6%) aged 15 to 29, 66 (48.9%) aged 30 to 64, and 24 (17.8%) aged 65 or older.
Tahuna-Mangateparu statistical area Tahuna-Mangateparu statistical area, which includes
Mangateparu, covers and had an estimated population of as of with a population density of people per km2. Tahuna-Mangateparu had a population of 1,650 in the
2023 New Zealand census, an increase of 81 people (5.2%) since the
2018 census, and an increase of 159 people (10.7%) since the
2013 census. There were 837 males, 807 females and 9 people of
other genders in 579 dwellings. 2.0% of people identified as
LGBTIQ+. The median age was 36.7 years (compared with 38.1 years nationally). There were 369 people (22.4%) aged under 15 years, 273 (16.5%) aged 15 to 29, 777 (47.1%) aged 30 to 64, and 231 (14.0%) aged 65 or older. ==Education==