Kittitas County is one of the 39 counties of the US state of Washington. In the year 2000 the population was 33,362 inhabitants. Its capital is Ellensburg, which is also the largest city in the county. There are several interpretations of the name, which comes from the language of the Kittite Indians. According to one source, the name "was used to signify from white chalk to slate rock or people from the bar and also land of plenitude." Most anthropologists and historians agree that each interpretation has some validity, depending on the dialect. Particularly talked about." Kittitas County was founded in 1884.