The Brong Ahafo Region is one of the ten regions of Ghana. It lies within longitude 0° 15'E to 3° W and latitude 8° 45"N to 7° 30'S. The Region shares common boundaries with five others - Northern Region to the North, Ashanti and Western Regions to the South, the Volta Region to the East and the Eastern Region to the South East. It has an international boundary to the West which it shares with La Côte d'Ivoire.
It is the second largest Region in Ghana and has an area of 39,557 sq. km. The region is divided into 19 administrative districts.
The relief is as follows: the southern and eastern parts have rather low elevations not exceeding 152.4m (500ft) above sea level. The land then gradually rises towards the north around Techiman, where it attains a height of 533.7m (1751ft) in the Buoyem hill. Other higher elevations occur at Bosumkese 712.6m (2338ft) and Bonsam 643.1m (2110ft). Sunyani has an average elevation of about 384.8m (1000ft). Along the Côte d'Ivoire border the land rises at certain places, for instance, Asuakwaw 483.7m (1587ft) Sampa 457.5m (1501ft) and Banda 592.2m (1943ft).
Two main drainage systems could be distinguished in the Region. The Black Volta dominates the Northern parts of the Region, while to the south, rivers like the Tain, Bia Pru and Tano form the main drainage basins
i. Temperature: - Temperature in the region is generally high averaging over 23.9° (75°F) throughout the year.
ii. Humidity:- Relative humidity in the Region is also quite high averaging over 75% throughout the year, as expected humidity is high in the wet months and low in the dry months.
iii. Rainfall:- Stretching across the centre of the country the region enjoys a moderate to heavy amount of rainfall. In the South the average annual rainfall is well over 1651 mm (65f). To the North of Berekum along the Western border of the Region, the average annual rainfall is about 1143-1270 mm (45-50 inches). Rainfall in the northern parts of the Region is lower than these values.
The predominant vegetation zones are the moist semi-deciduous forest to the South and South West and the Guinea Savannah Wood in the eastern half of the northern third of the region.
Reserved forests are virtually confined within the moist semi-deciduous forest zone, especially to the South West of Sunyani.
Population 2005 (calculated from Census data): 2,053,988 Proportion in Rural/Urban area: 62.6% / 37.4% as per census data 2000