The old Birim South District with capital at Akim Oda was split into two forming the Birim Central Municipal District and the smaller and new Birim South District. Akim Oda remains capital of the Birim Central Municipal District while the new Birim South District has its capital at Akim Swedru. Birim South administrative district was created in 2008 by the AkanlandNPPKufuor government.
The district covers an area of 299.5 square kilometres. Within it are a lot of hills, streams and rivers. It has 2 peak rain seasons during May–June and September–October. The relative humidity ranges from 56% during the dry season and 70% during the rainy season. The district lies within a semi-deciduous rainforest region.
The population is 47.6% male and 51.4% female. 56% of the population live in rural areas.
The highest political and administrative body in the district is the District Assembly. The District Executive is the political and administrative head. The assembly also has a presiding member who is the chairperson. There are 3 sub-district councils. They are the Akim Swedru Urban Council, Achiasi Town Council and the Aperadi Area Council.