Where is Columbia County, Washington?

location of Columbia county on a map — Location of Columbia County within the state of Washington

Columbia County is a county equivalent area found in Washington, USA. The county government of Columbia is found in the county seat of Dayton.

With a total 2,262.36 sq. km of land and water area, Columbia County, Washington is the 1034th largest county equivalent area in the United States. Home to 3,985 people, Columbia County has a total 2110 households earning 42519 on average per year.

Columbia County, Washington - Quick Facts

FIPS Code	53013
Area Codes	509
Time Zone	PST
Major Cities	Dayton (population: 3,657), Starbuck (population: 155)
Land Area	1,539 sq miles
Water Area	869 sq miles
Household Income	$42,519
Housing Units	2,110
Median Home Value	$147,900
High School Grads	86% of population
Holders of Bachelors Degrees	17% of population
Retail Spending	$7,308 per capita
Food & Accomodation Sales	$2,686 per capita