Tūrangi had a population of 3,444 at the 2018 New Zealand census, an increase of 492 people (16.7%) since the 2013 census, and an increase of 204 people (6.3%) since the 2006 census. There were 1,224 households. There were 1,713 males and 1,728 females, giving a sex ratio of 0.99 males per female. The median age was 40 years (compared with 37.4 years nationally), with 795 people (23.1%) aged under 15 years, 546 (15.9%) aged 15 to 29, 1,413 (41.0%) aged 30 to 64, and 693 (20.1%) aged 65 or older.