Powys is a principal area, local-government county and preserved county in Mid Wales. Most of Powys is mountainous, with north to south transport being difficult. The majority of the population live in villages and small towns. The largest towns are Newtown, Ystradgynlais, Brecon, and Welshpool. Powys has the lowest population density of all the principal areas of Wales.
Newtown is the largest town in the county of Powys, Wales and a prominent location for serviced offices in Powys. Newtown is served by two National Express services per day; the Aberystwyth to London and its return counterpart. Two major roads cross in the town centre: the A483 from Swansea to Chester and the A489 from Machynlleth to Craven Arms. There has been a large population growth as companies and people have settled, changing its rural market town character.
Brecon is a market town and community in southern Powys, Mid Wales; it is the third largest town in Powys and is situated to the north of the Brecon Beacons mountain range, within the Brecon Beacons National Park. The west end of Brecon has a small industrial area. Brecon is a thriving community and is popular as a holiday destination.
The east end of town has two military establishments; Dering Lines, and The Barracks, home to 160th (Wales) Brigade. Approximately 9 miles to the west of Brecon is Sennybridge Training Area, an important training facility for the British Army.