The Regional Council of South Savo  is a joint municipal authority of fourteen member municipalities. The Council operates as the authority for regional development and unit for regional planning. The Council also has a task to look after regional interests and to promote economic development and cultural well-being in South Savo. The Council has a statutory responsibility for regional development and planning.

The common will of South Savo is determined through democratic process. The supreme decision making body is the County Council. The 67 officials in the Council are politicians elected by the member municipalities for a mandate of four years.

The executive body of the Regional Council is called the Regional Government. It has 13 members. The political constitution both of the County Council and the Regional Government represent the political will of the region according to results of the local elections. 

The five member Board of Controllers assess whether the objectives, priorities, activities, financial means and management set for the Regional Council are being met.