Gerrards Cross is a town and civil parish in south Buckinghamshire, England, separated from the London Borough of Hillingdon at Harefield by Denham, south of Chalfont St Peter and north bordering villages of Fulmer, Hedgerley, Iver Heath and Stoke Poges. It spans foothills of the Chiltern Hills and land on the right bank of the River Misbourne. It is 19.3 miles (31.1 km) west-north-west of Charing Cross, central London. Bulstrode Park Camp was an Iron Age fortified encampment.

Chalfont St Peter is a large village and civil parish in southeastern Buckinghamshire, England. It is in a group of villages called The Chalfonts which also includes Chalfont St Giles and Little Chalfont. The villages lie between High Wycombe and Rickmansworth. Chalfont St Peter is one of the largest villages, with nearly 13,000 residents. The urban population for Chalfont St Peter and Gerrards Cross is 19,622, the two villages being considered a single area by the Office for National Statistics.