In 1909, there were 25 families living in Be'er Ya'akov, and tensions between the Ashkenazi and Dagestani families.[4] In 1910, the first elementary school was established. According to a census conducted in 1922 by the British Mandate authorities, Be'er Ya'akov had 131 inhabitants,[5] which had increased in the 1931 census to 265 residents in 58 houses.[6] By 1947, it had a population of 400.[7] It achieved local council status in 1949.