Makueni County borders Kajiado County to the West, Taita Taveta County to the South, Kitui County to the East and Machakos County to the North. Major physical features in the county include the volcanic Chyulu hills which lie along the South West border of the County in Kibwezi West Constituency, Mbooni hills in Mbooni Constituency and Kilungu hills in Kaiti Constituency. The County is divided into six sub-counties namely; Makueni, Kaiti, Mbooni, Kilome, Kibwezi West, and Kibwezi East.
Prof. Kivutha Kibwana, Governor of Makueni County, is a leader focused on development and unity of purpose. Prof. Kibwana is the first Governor of Makueni County who assumed office on 27th March, 2013.
Hon. Adelina Ndeto Mwau, The Deputy Governor of the Government of Makueni County is a Gender and Development Consultant. Hon. Adelina is the first Deputy Governor of the Government of Makueni County who assumed office on 27th March, 2013.