About the County

Kittitas (pronounced 'kit-i-tass') County is located in central Washington State. It spans from the lush forested Cascade Mountains to the upper Yakima River Valley plains and the Columbia River.

General County Information


Year Organized 1883
County Seat Ellensburg
Population* 2010 - 40,915
2000 - 33,362
1990 26,725
1980 - 24,866
Land Area 2,315 sq mi
1,481,600 acres
Latitude 47º12'44"N
Longitude 120º67'55"W
Elevation** From 478' to 7881'
Climate View Climate Information

An Act to create and locate the County of Kittitas 1887 Kittitas County Courthouse
Act creating Kittitas County | 1887 Courthouse

* US Census 2010
** Approximate range of County elevation, various sources