in the 1931 census of palestine, conducted by the british mandate government, it was counted under the much larger christian village of fassuta. the total population of the two places were 688 inhabitants; 81 muslims and 607 christians, in a total of 129 houses. the houses of al-mansura were spaciously separated from each other and the village had a church dedicated to mari yohanna (john the baptist). the chief source of income was from agriculture and husbandry and the main sources of drinking water came from a well to the north and three water tanks.