Browns Bay, comprising the statistical areas of Browns Bay South West, Browns Bay Central, and Browns Bay South East, had a population of 9,996 at the 2018 New Zealand census, an increase of 567 people (6.0%) since the 2013 census, and an increase of 1,206 people (13.7%) since the 2006 census. There were 3,417 households. There were 4,923 males and 5,073 females, giving a sex ratio of 0.97 males per female, with 1,818 people (18.2%) aged under 15 years, 1,986 (19.9%) aged 15 to 29, 4,806 (48.1%) aged 30 to 64, and 1,386 (13.9%) aged 65 or older.