Brookfield covers and had an estimated population of as of with a population density of people per km2. Brookfield had a population of 6,024 in the
2023 New Zealand census, an increase of 270 people (4.7%) since the
2018 census, and an increase of 873 people (16.9%) since the
2013 census. There were 2,958 males, 3,045 females, and 21 people of
other genders in 2,139 dwellings. 3.0% of people identified as
LGBTIQ+. The median age was 34.8 years (compared with 38.1 years nationally). There were 1,311 people (21.8%) aged under 15 years, 1,197 (19.9%) aged 15 to 29, 2,664 (44.2%) aged 30 to 64, and 849 (14.1%) aged 65 or older. ==Education==