The 4 counties that border Somerset are Bristol, Gloucestershire, Wiltshire, and Dorset.
Gloucestershire, Herefordshire, Shropshire and Cheshire
On the English side: Cheshire, Shropshire, Herefordshire & Gloucestershire. On the Welsh side: Clwyd, Powis, Mid Glamorgan & Gwent.
The counties surrounding Oxfordshire are (clockwise from one o'clock): Northamptonshire, Buckinghamshire, Berkshire, Wiltshire, Gloucestershire, and Warwickshire.
Devon, Dorset, Wiltshire and Gloucestershire.
Wiltshire shares borders with Gloucestershire, Oxfordshire, Berkshire, Hampshire, Dorset and Somerset.
Gloucestershire does not have a border with Berkshire
Somerset is a county in England, bordered by Devon, Dorset, Wiltshire and Gloucestershire.
The counties surrounding Oxfordshire are (clockwise from one o'clock): Northamptonshire, Buckinghamshire, Berkshire, Wiltshire, Gloucestershire, and Warwickshire.
Thirteen counties in New Jersey border the eastern side of the state.
There are two counties that border Lake Cumberland in Kentucky.
Ten counties in Indiana border Ohio.