Columbia County, county Washington, United States. As of 2020 county had an estimated population of 4,048 inhabitants. The county was created 149 years ago in 1875. Its county seat is Dayton.
There are 1 city/town in Columbia County, WA. The largest city of Columbia County is Starbuck with a population of 130.
List of cities, towns, neighborhoods & other populated places in Columbia County.
City Name | Title | Population |
---|---|---|
Starbuck | Town in Columbia County, Washington, United States | 130 |