Embu County is a county of the Republic of Kenya. The capital of Embu County and the former Eastern province headquarters, Embu is a large and largely metropolitan area with a population of 608,599 persons. The county borders Kirinyaga to the west, Kitui to the east, Tharaka Nithi to the north and Machakos to the south. The county occupies an area of 2,821 km2.

Kirinyaga County is a county in the former Central Province of Kenya, located south of Mount Kenya. Its capital is Kutus and its largest town is Wanguru. In 2019, the county had a population of 610,411 people and an area of 1,478.1 km2. The county is bordered to the east and south by Embu County, to the south by a tiny part of Machakos County, to the southwest by Murang'a County and to the northwest by Nyeri County.