Immediately after the Conquest Walcott was given to Robert Malet who died before the Domesday Survey of 1088 when it was granted to Ralph (Ranulf), brother of Iger and held by Humphrey, possibly his nephew. There were 4 carucates and of land with 3 ploughs, 8 villagers & 16 smallholders. 2 other ploughs, of meadow, 1 mill, 2 cobs (horses), 16 cattle, 24 pigs, 70 sheep & 4 beehives. 1 church with , 7 freemen with , 5 other ploughs. Another 4 freemen with . The value of the manor was 60s. South Erpingham Hundred held 3 freemen in Walcott with 2.5 ploughs. As only men were recorded in the survey, and assuming each man had a wife and 2.4 children, the approximate population of Walcott in 1088 was around 170.