Information:  - Yakima (or ) is a U.S. city located about southeast of Mount Rainier in Washington. Yakima is the county seat of Yakima County, Washington, and the state's eleventh largest city by population. As of the 2010 census, the city had a total population of 91,067 and a metropolitan population of 243,231. The unincorporated suburban areas of West Valley and Terrace Heights are considered a part of greater Yakima.  - A census is the procedure of systematically acquiring and recording information about the members of a given population. It is a regularly occurring and official count of a particular population. The term is used mostly in connection with national population and housing censuses; other common censuses include agriculture, business, and traffic censuses. The United Nations defines the essential features of population and housing censuses as "individual enumeration, universality within a defined territory, simultaneity and defined periodicity", and recommends that population censuses be taken at least every 10 years. United Nations recommendations also cover census topics to be collected, official definitions, classifications and other useful information to co-ordinate international practice.  - A county seat is an administrative center, seat of government, or capital city of a county or civil parish. The term is used in the United States, Canada, Romania, China and Taiwan. In the United Kingdom and Ireland, county towns have a similar function.  - Yakima County is a county in the U.S. state of Washington. As of the 2010 census, its population was 243,231. The county seat and largest city is Yakima. The county was formed out of Ferguson County on January 21, 1865 and is named for Yakama tribe of Native Americans. Ferguson County, no longer in existence, had been created from Walla Walla County on January 23, 1863.  - Cowiche ( pronounced Cow - witch - ee ) is an unincorporated community northwest of Yakima , Washington , near the eastern foothills of the Cascade Mountain range , in central Washington State ( USA ) . Cowiche , sometimes spelled Cowychee , is said to mean `` footbridge between the valley and the mountains . '' The town had 428 people at the 2010 census .    What entity does 'cowiche' has the relation 'located in the administrative territorial entity' with?
yakima county