[1] Diddington lies approximately 5 miles (8 km) south-west of Huntingdon, near to Buckden.

Diddington is situated within Huntingdonshire which is a non-metropolitan district of Cambridgeshire as well as being a historic county of England.

[2] In 1085 William the Conqueror ordered that a survey should be carried out across his kingdom to discover who owned which parts and what it was worth.

[5] The Domesday Book does not explicitly detail the population of a place but it records that there was 14 households at Diddington.

The Domesday Book uses a number of units of measure for areas of land that are now unfamiliar terms, such as hides and ploughlands.

In different parts of the country, these were terms for the area of land that a team of eight oxen could plough in a single season and are equivalent to 120 acres (49 hectares); this was the amount of land that was considered to be sufficient to support a single family.

[5] The tax assessment in the Domesday Book was known as geld or danegeld and was a type of land-tax based on the hide or ploughland.

For Diddington the highest tier of local government is Cambridgeshire County Council which has administration buildings in Cambridge.

[16] Cambridgeshire County Council consists of 69 councillors representing 60 electoral divisions.

[17] Diddington is part of the electoral division of Buckden, Gransden and The Offords[15] and is represented on the county council by one councillor.

[18] In 2011, the parish covered an area of 1,300 acres (526 hectares)[18] The village lies along a single street that can only be accessed from the Great North Road.

In 1892 Arthur John Thornhill, lord of the manor, commissioned a village hall which is still in use today.

The presence of Diddington School caused the population to jump to 668 by 1951 before dropping sharply again to 119 in 1961.