Columbia County is a district of Washington.
Boundaries: United States Census Bureau, MAF/TIGER Database (https://www.census.gov/geographies/mapping-files/time-series/geo/carto-boundary-file.html) via geoBoundaries, public domain
| City of Dayton | no seat recorded | 3 k |
| Town of Starbuck | no seat recorded | 129 |
Nothing has been written about Columbia County here, and neither Wikipedia nor Wikivoyage has an article we could draw one from. If you know the place, that makes you a better source than anything we have. Tell us what is worth knowing and where you got it.
We show Dayton as the capital of Columbia County. If that is wrong, tell us what it should be and where you read it.
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