Cities in Lewis County, Washington by Population (2024)

There are 18 cities in Lewis County, Washington.

Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)

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City
Rank
State
2024 Population
2020 Census
Annual Change
Density (mi²)
Area (mi²)
Centralia1Washington18,91518,2690.86%2,4827.62
Chehalis2Washington7,6017,4790.4%1,3095.81
Rochester3Washington6,7164,8543.34%7948.46
Fords Prairie4Washington3,1022,5824.37%8323.73
Grand Mound5Washington3,0423,957-6.17%7334.15
Napavine6Washington2,2211,8973.79%7682.89
Winlock7Washington2,0981,4827.92%1,6241.29
Morton8Washington1,1041,0381.47%1,3450.82
Toledo9Washington8056335.64%2,0430.39
Mossyrock10Washington8007700.88%1,1630.69
Oakville11Washington7307210.27%1,3220.55
Ashford12Washington7114892.6%2882.47
Onalaska13Washington7014317.85%4371.60
Vader14Washington6996312.49%7520.93
Pe Ell15Washington6726460.9%1,1370.59
Bucoda16Washington6215970.98%1,0650.58
Packwood17Washington66294-27.47%661
Mineral18Washington7135-81.58%110.67

Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.

What is the largest city in Lewis County, Washington?

Centralia is the largest city in Lewis County.

What is the smallest city in Lewis County, Washington?

Mineral is the smallest city in Lewis County.

How many cities are in Lewis County?

There are 18 cities in Lewis County, Washington.

Frequently Asked Questions