Tapanui is described by Statistics New Zealand as a rural settlement. It covers , and had an estimated population of as of with a population density of people per km2. It is part of the much larger
West Otago statistical area. Tapanui had a population of 789 at the
2018 New Zealand census, an increase of 66 people (9.1%) since the
2013 census, and an increase of 45 people (6.0%) since the
2006 census. There were 351 households, comprising 381 males and 399 females, giving a sex ratio of 0.95 males per female, with 135 people (17.1%) aged under 15 years, 93 (11.8%) aged 15 to 29, 336 (42.6%) aged 30 to 64, and 219 (27.8%) aged 65 or older. Ethnicities were 89.7% European/
Pākehā, 14.8%
Māori, 0.4%
Pasifika, 1.5%
Asian, and 3.4% other ethnicities. People may identify with more than one ethnicity. Although some people chose not to answer the census's question about religious affiliation, 51.0% had no religion, 38.4% were
Christian, 0.4% had
Māori religious beliefs, 0.8% were
Hindu, 0.8% were
Muslim, 0.8% were
Buddhist and 0.8% had other religions. Of those at least 15 years old, 63 (9.6%) people had a bachelor's or higher degree, and 180 (27.5%) people had no formal qualifications. 51 people (7.8%) earned over $70,000 compared to 17.2% nationally. The employment status of those at least 15 was that 279 (42.7%) people were employed full-time, 114 (17.4%) were part-time, and 15 (2.3%) were unemployed. ==Education==