PlainZIP

Columbia

Washington

2

Total ZIPs

3,891

Total Population

ZIP Codes in Columbia

ZIP Code City Population Density
99328 Dayton 3,733 2
99359 Starbuck 158 1

All data sourced from the U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2023).

PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.