Columbia County, Washington
Columbia County is a county in the U.S. state of Washington. The county seat is Dayton. 4,078 people lived there at the 2010 census[1] which makes it the third-smallest populous county in Washington. The county was created out of Walla Walla County on November 11, 1875[2] and is named after the Columbia River.
Columbia County | |
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![]() Columbia County Courthouse in Dayton | |
![]() Location within the U.S. state of Washington | |
![]() Washington's location within the U.S. | |
Coordinates: 46°18′N 117°55′W | |
Country | ![]() |
State | ![]() |
Founded | November 11, 1875 |
Named for | Columbia River |
Seat | Dayton |
Largest city | Dayton |
Area | |
• Total | 873 sq mi (2,260 km2) |
• Land | 869 sq mi (2,250 km2) |
• Water | 4.9 sq mi (13 km2) 0.6%% |
Population (2010) | |
• Total | 4,078 |
• Estimate (2019) | 3,985 |
• Density | 4.6/sq mi (1.8/km2) |
Time zone | UTC−8 (Pacific) |
• Summer (DST) | UTC−7 (PDT) |
Congressional district | 5th |
Website | www |
References
- "State & County QuickFacts". United States Census Bureau. Archived from the original on September 5, 2015. Retrieved January 7, 2014.
- "Milestones for Washington State History — Part 2: 1851 to 1900". HistoryLink.org. March 6, 2003.
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