Columbia   County WA United States

County FIPS 53013
Largest City Dayton
State Washington
Latitude 46.2975
Longitude -117.9078
Population 4,014
Density 4.61 people per square mile
Time Zone America/Los Angeles
  • All demographic data comes from the 2024 American Community Survey (5-year study).
  • Learn more about each field.
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Household Income

Median household: $71,810
Median individual: $39,471

Race

Mode: 83.1% White

Gender

 50.2% female 

Rent

  $985 / month  

Median house value: $270,581.0

Age

Median: 49.6 years old

Education

With at least college degree: 24.9%
With STEM degree: 45.3%

Marital Status

 54.1% married 

Never married: 25.4%

Labor Force Participation

 54.9% working 

Unemployed: 3.9%

Average Family Size

 2.62 people 

Commute Time

 23.0 minutes 

Health Care

 7.8% uninsured 

Poverty

 9.3%

All data comes from the SimpleMaps US Counties Database, 2026.

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