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Columbia County

Columbia County is located in southeast Washington.  The County Seat is Dayton and the largest city is Dayton.  The Official Web Site is located at .  The 2014 population estimate is 3,985 and the 2010 census population was 4,078.  The land area is 868.63 square miles and there are 4.7 persons per square mile.

94.4% of the population is White, 0.5% is Black or African American, 6.3% is Hispanic or Latino, 0.7% is Asian, 1.7% is American Indian or Alaska Native, 0.3% is Native Hawaiian or Pacific Islander, and 2.4% is two or more races.  86.1% have a high school degree or higher, and 17.2% have a Bachelor degree or higher.

The median home value is $147,900, there are 1,651 households, an average of 2.39 persons per household.  The per capita income is $23,814,  the median household income is $42,519, and 17.1% of the persons in Columbia County are considered below poverty level.

The total number of firms, at last estimate, was 298.  Retail sales (in $1000) were $28,894, and sales per capita were $7,308.  

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Public Records, Libraries, and Schools

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Public Records

111 S 3RD ST., COLUMBIA, DAYTON, WA, 99328.  
Phone: (509) 382-4131  
302 E PARK,  COLUMBIA COUNTY, DAYTON, WA, 99328.   Phone: (206) 382-2507
Total Students: 190  
614 S THIRD STREET,  COLUMBIA COUNTY, DAYTON, WA, 99328.   Phone: (509) 382-4775

609 S SECOND STREET,  COLUMBIA COUNTY, DAYTON, WA, 99328.   Phone: (509) 382-2522

STARBUCK SCHOOL   (Directions)
717 TUCANNON ST,  COLUMBIA COUNTY, STARBUCK, WA, 99359.   Phone: (509) 399-2381

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