Grey Lynn, comprising the statistical areas of Grey Lynn North, Grey Lynn West, Grey Lynn Central and Grey Lynn East, had a population of 11,733 at the 2018 New Zealand census, an increase of 891 people (8.2%) since the 2013 census, and an increase of 1,491 people (14.6%) since the 2006 census. There were 4,173 households. There were 5,751 males and 5,985 females, giving a sex ratio of 0.96 males per female, with 1,695 people (14.4%) aged under 15 years, 3,291 (28.0%) aged 15 to 29, 5,994 (51.1%) aged 30 to 64, and 753 (6.4%) aged 65 or older.