 In the first census taken by the Palestinian Central Bureau of Statistics (PCBS) in 1997, Bani Zeid had a population of 4,351 inhabitants. The gender make-up was 51.8 % male and 49.2 % female. More than half of the population was under the age of 20 (51.1 %), while 27.7 % were between the ages of 20 and 39, 15 % between the ages of 40 and 64, and the remainder of the population being 65 or older (6 %). Palestinian refugees made up 6.8 % of the residents in 1997.
