Most of the counties of England were divided into hundreds from the late Saxon period and these were, with a few exceptions, effectively abandoned as administrative divisions in the 19th century. in some areas, equivalent districts were known as "wapentakes".
In Wales a similar Celtic system of division called cantrefi (a hundred farmsteads) had existed for centuries and was of particular importance in the administration of the Welsh law.
From The National Gazetteer of Britain and Ireland (1868)
Until at least the time of the Domesday Survey in 1086 there were 18 hundreds in Buckinghamshire. It has been suggested however that neighbouring hundreds had already become more closely associated in the 11th century so that by the end of the 14th century the original or ancient hundreds had been consolidated into 8 larger hundreds.
Cambridgeshire was divided into 17 hundreds, plus the borough of Cambridge. Each hundred had a separate council that met each month to rule on local judicial and taxation matters. In 1929 the hundreds contained the following parishes.
From Harris, B. E., and Thacker, A. T. (1987). The Victoria History of the County of Chester. (Volume 1: Physique, Prehistory, Roman, Anglo-Saxon, and Domesday). Oxford: Oxford University Press. ISBN .
With some variations in the names, the Domesday hundreds were:
Atiscross and Exestan were lost to Wales, and a merging and amalgamation of the rest with a renaming led to the following hundreds:
In Cornwall, the name calqued cantrev
From GENUKI [4]
For some purposes, the Isles of Scilly were counted as a tenth hundred.