Stanmore Bay covers and had an estimated population of as of with a population density of people per km2. Stanmore Bay had a population of 10,770 in the
2023 New Zealand census, an increase of 558 people (5.5%) since the
2018 census, and an increase of 1,545 people (16.7%) since the
2013 census. There were 5,220 males, 5,505 females and 42 people of
other genders in 3,975 dwellings. 2.8% of people identified as
LGBTIQ+. The median age was 38.1 years (compared with 38.1 years nationally). There were 2,211 people (20.5%) aged under 15 years, 1,812 (16.8%) aged 15 to 29, 5,052 (46.9%) aged 30 to 64, and 1,698 (15.8%) aged 65 or older. ==Education==