Wiltshire (short: Wilts) is an English county. It borders the counties of Hampshire, Dorset, Somerset, Gloucestershire, Oxfordshire and Berkshire, and contains the unitary authority of Swindon. The county town is Trowbridge, in the west of the county at 51°19′11″N, 2°12′32″W. The county covers 858,931 acres (3476 km²)