Cities in Benton County, Washington by Population (2024)

There are 8 cities in Benton 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)
Kennewick1Washington85,51983,9810.45%3,00028.50
Richland2Washington64,76460,8781.52%1,62439.87
West Richland3Washington19,20616,3843.82%86822.11
Sunnyside4Washington16,20816,384-0.27%2,1467.55
Grandview5Washington11,20610,8800.74%1,6536.78
Prosser6Washington6,3736,1111.05%1,2335.17
Finley7Washington5,8385,858-0.09%50511.56
Benton City8Washington3,8323,4802.35%1,5402.49

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 Benton County, Washington?

Kennewick is the largest city in Benton County.

What is the smallest city in Benton County, Washington?

Benton City is the smallest city in Benton County.

How many cities are in Benton County?

There are 8 cities in Benton County, Washington.

Frequently Asked Questions