Walla Walla County is located on the Columbia Plateau and in the Blue Mountain region of southeastern Washington.
Its unusual name is from the Sahaptin Indian language and means "a place of many waters." The original boundaries
of Walla Walla County, as created in 1854, included all the present counties of Washington east of the Cascades.
The present boundaries were created in 1875.
1964 bulletin from the County Agricultural Data Series created by NASS, then known as the Crop and Livestock
Reporting Service. Links are to different chapters within the bulletin and are in Adobe PDF format.