Parnell, comprising the statistical areas of Parnell West and Parnell East, had a population of 7,563 at the 2018 New Zealand census, an increase of 471 people (6.6%) since the 2013 census, and an increase of 1,044 people (16.0%) since the 2006 census. There were 3,021 households. There were 3,627 males and 3,933 females, giving a sex ratio of 0.92 males per female, with 756 people (10.0%) aged under 15 years, 2,145 (28.4%) aged 15 to 29, 3,597 (47.6%) aged 30 to 64, and 1,065 (14.1%) aged 65 or older.