The constituency is in Buckinghamshire and coincides with the Chiltern Local Government District. It includes the towns of Chesham and Amersham and outlying rural village settlements within the Metropolitan Green Belt and partly also within the Chilterns AONB. The area is connected with central London by the Metropolitan line of London Underground and the London to Aylesbury Line operated by Chiltern Railways. The constituency is also close to the M40 motorway and is one the Conservatives' safest seats, home to many affluent professionals and commuters to London.