Tri-Cities
Washington
The Tri-Cities are three closely linked cities at the confluence of the Yakima, Snake, and Columbia Rivers in the Columbia Basin of Eastern Washington. The cities border one another, making the Tri-Cities seem like one uninterrupted mid-sized... Wikipedia
Area: 109 mi²
Area code: Area code 509
Elevation: 550 ft (170 m)
ZIP code: 99301, 99302, 99323, 99336, 99337, 99338, 99352, 99353, 99354