For the municipality in Quebec, see Adstock, Quebec Adstock is a village and civil parish about 2.5 miles northwest of Winslow and 3 miles southeast of Buckingham in the Aylesbury Vale district of Buckinghamshire. The 2001 Census recorded a parish population of 415 reducing to 363 at the 2011 Census. There are remains of a Roman road in the village. In the divisions of England that took place between AD 613 and 1017, Buckinghamshire was divided into eight hundreds.