There are 21 zip codes in Lewis County, Washington. The most populated is 98531, located in Centralia. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
9853126,931Centralia
9853226,624Chehalis
985967,483Winlock
985704,417Onalaska
985913,667Toledo
985643,106Mossyrock
983772,392Randle
983562,367Morton
985931,449Vader
98572778Pe Ell
98355749Mineral
98542708Ethel
98533630Cinebar
98336594Glenoma
98585580Silver Creek
98565432Napavine
98361420Packwood
98538397Curtis
98582236Salkum
98539159Doty
985447Galvin
showing: 21 rows

Zip Codes in Lewis County, Washington by Population (2024)