Columbia County, Washington cities by population

Number of cities: 2

Population: 3,969

Largest city: Dayton

Table of cities in Columbia County, Washington sorted by population from largest to smallest.
City	Type	Population
Dayton	city	2,544
Starbuck	town	159

What is the largest city in Columbia County, Washington?

Dayton is the largest city in Columbia County, Washington with a population of 2,544.

TOP-5 cities by population in Columbia County, Washington: