Buckinghamshire (abbreviated Bucks) is one of the home counties in South East England. The county town is Aylesbury.
The area under the control of Buckinghamshire County Council, or shire county, is divided into four districts - Aylesbury Vale, Chiltern, South Bucks and Wycombe. Milton Keynes is a unitary authority and forms part of the county for various functions such as Lord Lieutenant but does not come under county council control. The ceremonial county, the area including Milton Keynes, borders Greater London, Berkshire, Oxfordshire, Northamptonshire, Bedfordshire and Hertfordshire.