Kennewick
City in Benton County, Washington

Kennewick is a city in Benton County, Washington, with 83,921 residents (2020 Census). It sits at 407 ft (124 m) above sea level. The nearest town is West Pasco, 3.9 miles N.
- 83,921residents (2020 Census)
- 407 ftelevation · 124 m
- 28.6 sq miland area · 74.1 km²
- 2,932 / sq mipopulation density
- 99336ZIP code
About Kennewick
Kennewick () is a city in Benton County, Washington, United States. It is located along the southwest bank of the Columbia River, just southeast of the confluence of the Columbia and Yakima rivers and across from the confluence of the Columbia and Snake rivers. It is the most populous of the three cities collectively referred to as the Tri-Cities (the others being Pasco and Richland). The population was 83,921 at the 2020 census, and was estimated at 86,728 in 2024.
The discovery of Kennewick Man along the banks of the Columbia River provides evidence of Native Americans' settlement of the area for at least 9,000 years. American settlers began moving into the region in the late 19th century as transportation infrastructure was built to connect Kennewick to other settlements along the Columbia River. The construction of the Hanford Site at Richland accelerated the city's growth in the 1940s as workers from around the country came to participate in the Manhattan Project. While Hanford and Pacific Northwest National Laboratory continue to be major sources of employment, the city's economy has diversified over time and Kennewick today hosts offices for Amazon and Lamb Weston.
Text: Wikipedia · CC BY-SA 4.0
Kennewick weather: 7-day forecast
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Live webcams in Kennewick
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Living in Kennewick
- Median household income
- $73,576
- Median home value
- $370,700
- Median rent
- $1,240/mo
- Median age
- 35.7
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Map of Kennewick
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Open in Google Maps ›Kennewick, WA population
Kennewick had 83,921 residents in the 2020 Census.
| 2020 Census | 83,921 |
|---|---|
| Density | 2,932 per sq mi (1,132 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Kennewick at a glance
| State | Washington (WA) |
|---|---|
| County | Benton County |
| Type | City |
| Population | 83,921 (2020) |
| Land area | 28.62 sq mi (74.1 km²) |
| Water area | 1.39 sq mi (3.61 km²) |
| Elevation | 407 ft (124 m) |
| Coordinates | 46.1976° N, 119.1759° W |
| ZIP code | 99336 |
| Official website | go2kennewick.com |
| Census code (GEOID) | 5335275 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Kennewick
- West Pasco3.9 mi N
- Pasco5.4 mi NE
- Finley6.6 mi E
- Richland8.4 mi NW
- Burbank9.2 mi E
- West Richland12.9 mi NW
- Benton City15.1 mi W
- Wallula15.1 mi SE
- Umatilla, OR20.7 mi S
- Hermiston, OR25.7 mi S
- Irrigon, OR25.8 mi SW
- Touchet26.4 mi SE
Straight-line distance between town centers.
Frequently asked questions about Kennewick
What county is Kennewick in?
Kennewick is in Benton County, Washington.
What is the population of Kennewick, WA?
83,921 people lived in Kennewick at the 2020 Census.
What is the ZIP code of Kennewick, WA?
The ZIP code of Kennewick is 99336.
What is the elevation of Kennewick?
407 feet (124 m) above sea level.
What towns are near Kennewick?
West Pasco (3.9 mi), Pasco (5.4 mi), Finley (6.6 mi), Richland (8.4 mi), Burbank (9.2 mi).
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