Pacific Northwest National Laboratory is a leading center for scientific discovery in chemistry, data analytics, and Earth science, and for technological innovation in sustainable energy and national security.
A National Lab with Pacific Northwest Roots and Global Reach
Get the Latest from the PNNL Newsroom
Sign up for our news
PNNL By the Numbers
Companies with PNNL Roots
Life in the Tri-Cities
The Tri-Cities is a unique and thriving region of southeastern Washington State, positioned in a beautiful natural setting at the confluence of three rivers—the Columbia, the Yakima, and the Snake. The Tri-Cities originally comprised Richland, Kennewick, and Pasco, but the area has expanded to include the City of West Richland.