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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022


COLUMBIA County, WA Covers 2 ZIP Codes

ZIP CodeClassificationCityPopulationTimezoneArea Code(s)
ZIP Code 99328GeneralDayton3,733Pacific509
ZIP Code 99359P.O. BoxStarbuck158Pacific509

Population:4,078 (More Details)
Male Population:2,022
Female Population:2,056
Median Age:48
ZIP Codes:2
Area Codes:0
Total Area:874 square miles (county)
Land Area:869 square miles (county)
Water Area:5 square miles (county)

COLUMBIA, WA Demographic Information

* Demographic data is based on 2010 Census.

Total population of COLUMBIA County, WA4,078
Male population of COLUMBIA County, WA2,022
Female population of COLUMBIA County, WA2,056
Median age (years)48.3
White Population3,791
Black Population12
Indian Population58
Asian Population23
Hawaiian Population14
Hispanic Population254
Median age (Male)47.7
Median age (Female)49
Total households1,762
Family households (families)1,156
Average household size for COLUMBIA County, WA2.27
Average family size of COLUMBIA County, WA2.76
Total housing units for COLUMBIA County, WA2,136

COLUMBIA County, WA Covers 2 Cities