Berhampore had a population of 3,870 at the 2018 New Zealand census, an increase of 261 people (7.2%) since the 2013 census, and an increase of 273 people (7.6%) since the 2006 census. There were 1,554 households. There were 1,821 males and 2,049 females, giving a sex ratio of 0.89 males per female. The median age was 35.1 years (compared with 37.4 years nationally), with 606 people (15.7%) aged under 15 years, 960 (24.8%) aged 15 to 29, 1,770 (45.7%) aged 30 to 64, and 537 (13.9%) aged 65 or older.
