Freemans Bay had a population of 4,407 at the 2018 New Zealand census, an increase of 201 people (4.8%) since the 2013 census, and an increase of 576 people (15.0%) since the 2006 census. There were 1,920 households. There were 2,196 males and 2,208 females, giving a sex ratio of 0.99 males per female. The median age was 36.9 years, with 399 people (9.1%) aged under 15 years, 1,116 (25.3%) aged 15 to 29, 2,370 (53.8%) aged 30 to 64, and 522 (11.8%) aged 65 or older.