Kennewick-Richland-Walla Walla, WA Combined Statistical Area Demographics
Kennewick-Richland-Walla Walla, WA Combined Statistical Area is the 109th most populous of 184 combined statistical areas in the United States, with 366,206 residents across 4,212 square miles. That is about 87 people per square mile.
At the 2020 census
| Population | 366,206 |
|---|---|
| Land area | 4,212 sq mi |
| Density | 87 / sq mi |
Data: 2020 Census · American Community Survey 2024
How Kennewick-Richland-Walla Walla, WA Combined Statistical Area compares to the US
We're computing this combined statistical area's comparison table — check back shortly. Population, land area, and density above are already exact.
Central Location: Kennewick-Richland-Walla Walla, WA Combined Statistical Area
Measured from the combined statistical area's main population center using 2020 census blocks.
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Counties in the Kennewick-Richland-Walla Walla, WA Combined Statistical Area area
| Name | Population | Sq mi | Per sq mi |
|---|---|---|---|
| Benton County, WA | 206,873 | 1,700.1 | 122 |
| Franklin County, WA | 96,749 | 1,241.6 | 78 |
| Walla Walla County, WA | 62,584 | 1,270.0 | 49 |
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- Seattle-Tacoma, WA Combined Statistical Area
- Portland-Vancouver-Salem, OR-WA Combined Statistical Area
- Boise City-Mountain Home-Ontario, ID-OR Combined Statistical Area
About this page
This page shows demographics for a US combined statistical area from the 2020 census and the American Community Survey: population, land area, density, and how the region compares to national averages.
Combined areas are built from whole counties, listed below. Statistics aggregate the member counties' census tracts.