Portland is a city located in the Pacific Northwest, near the confluence of the Willamette and Columbia rivers in the state of Oregon. As of the 2010 Census, it had a population of 583,776, making it the 29th most populous city in the United States. Portland is Oregon's most populous city, and the third most populous city in the Pacific Northwest, after Seattle, Washington and Vancouver, British Columbia, Canada. Approximately 2,260,000 people live in the Portland metropolitan area (MSA), the 23rd most populous in the United States.
Portland was incorporated in 1851 and is the county seat of Multnomah County. The city extends west into the Cedar Mill neighborhood in Washington County and south towards Lake Oswego in Clackamas County. It is governed by a commission-based government headed by a mayor and four other commissioners.
Portland has been referred to as one of the most environmentally friendly or "green" cities in the world. The city and region are noted for strong land-use planning and investment in light rail, supported by Metro, a distinctive regional government. Portland is known for its large number of microbreweries and microdistilleries, as well as its coffee enthusiasm. It is also the home of the Trail Blazers NBA team and the Timbers MLS team.
Portland lies in the Marine west coast climate region, having a climate marked by warm, dry summers and rainy but mild winters. This climate is ideal for growing roses, and for more than a century, Portland has been known as "The City of Roses" with many rose gardens-most prominently the International Rose Test Garden.