 The total population has been estimated to lie between 10,500 and 11,000, with a population density ranging from almost uninhabited in the east of the county to 20 per square mile in the Wirral and the valleys of the Dee, Gowy and Weaver.The county contained around 490 hides of farmed land, mainly in the west, where "hide" refers to a variable area probably equivalent to the land that could support a household.A total of 935 ploughlands was recorded, although there were only 456 plough teams.