Garissa County is an administrative county in Kenya. It is located in Eastern Kenya bordering Somalia to the East, Wajir County and Isiolo County to the North, Tana River County to the West and Lamu County to the South. Its capital and largest urban area is Garissa.

Tana River County is a county in the former Coast Province of Kenya. It is named after the Tana River, the longest river in Kenya. It has an area of 38,437 km2 (14,841 sq mi) and a population of 315,943 as of the 2019 census. The county borders Kitui County to the west, Garissa County to the northeast, Isiolo County to the north, Lamu County to the southeast and Kilifi County to the south.The administrative headquarters of the county is Hola also known as Galole. The County has five (5) sub Counties; Tana Delta, Tana River, Tana North, Galedyertu, and Bangal.