Careers, Jobs and Education Resources for: Columbia County, Washington
Columbia County is a county located in the U.S. state of Washington. As of 2000, the population was 4,064. The county seat is at Dayton, which is also the county's largest city. It is named after the Columbia River. Columbia County was created out of Walla Walla County on November 11, 1875.
(from wikipedia)
Cities in Columbia County
