Kennewick is a city in Benton County in the southeastern part of the U.S. state of Washington, near the Hanford nuclear site. It is the most populous of the three cities collectively referred to as the Tri-Cities. Kennewick is located along the southwest bank of the Columbia River, opposite Pasco and just south of the confluence of the Columbia and Yakima rivers. The population was 67,180 at the state Office of Financial Management's estimate in April 1, 2009. The nearest commercial airport is the Tri-Cities Airport in Pasco, a regional commercial and private airport. Forbes magazine named Kennewick the #2 area in the United States for job growth, while nearby Yakima was named #1. The article cites the number of scientists employed by the Pacific Northwest National Laboratory and area farmland for this outlook.