Portland is a city located in the Northwestern United States, near the confluence of the Willamette and Columbia rivers in the state of Oregon. As of July 2009, it has an estimated population of 582,130 making it the 29th most populous in the United States.^[5] It has been referred to as the most environmentally friendly or "green" city in the United States and the second most in the world.^[6] Portland is Oregon's most populous city, and the third most populous city in the Pacific Northwest.

portland signs