Glendowie covers and had an estimated population of as of with a population density of people per km2. Glendowie had a population of 8,493 in the
2023 New Zealand census, a decrease of 342 people (−3.9%) since the
2018 census, and an increase of 45 people (0.5%) since the
2013 census. There were 4,137 males, 4,341 females and 15 people of
other genders in 2,862 dwellings. 2.5% of people identified as
LGBTIQ+. The median age was 43.1 years (compared with 38.1 years nationally). There were 1,707 people (20.1%) aged under 15 years, 1,482 (17.4%) aged 15 to 29, 3,903 (46.0%) aged 30 to 64, and 1,404 (16.5%) aged 65 or older. ==Education==