Clive had a population of 2,247 at the 2018 New Zealand census, an increase of 165 people (7.9%) since the 2013 census, and an increase of 372 people (19.8%) since the 2006 census. There were 771 households, comprising 1,116 males and 1,131 females, giving a sex ratio of 0.99 males per female. The median age was 44.5 years (compared with 37.4 years nationally), with 438 people (19.5%) aged under 15 years, 333 (14.8%) aged 15 to 29, 1,068 (47.5%) aged 30 to 64, and 414 (18.4%) aged 65 or older.
