Welcome to Kennewick!
Kennewick is a city in Benton County along the Columbia River Plateau region of Washington State. Along with the cities of Pasco and Richland, Kennewick is known for being the largest and most populous city within the area known as the "Tri-Cities" of Washington. The Tri-Cities area is the fourth most populous metropolitan area within Washington State, behind Seattle, Spokane, and Tacoma.
Kennewick is a city in Benton County in the U.S. state of Washington. 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 73,917 at the 2010 census, the Census Bureau estimates the city's population to be 84,347 as of July 1, 2019.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.