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As of the 2010 census, the population was 116,672. The county seat is Albany. The county is named in honor of Lewis F. Linn, a U.S. Senator from Missouri who advocated the American settlement of the Oregon Country. Linn County comprises the Albany, OR Metropolitan Statistical Area, which is included in the Portland-Vancouver-Salem, OR-WA Combined Statistical Area.
Portland is the most populous city in Oregon and the third most populous city in the Pacific Northwest, after Seattle and Vancouver. With its many rose gardens, Portland is known as the City of Roses and it has been incorporated since 1851. Portland leads Oregon in population growth.The 2014 Portland population is estimated at 600,000 in the city proper, or more 2.36 million in the metropolitan area. At the 2010 census, Portland had a population of almost 584,000, which was estimated to have reached 587,800 by 2012.In 2014, it is believed this number has grown to about 600,000. This makes Portland the 28th most populous city in the country.t the 2010 census, Portland had a population of almost 584,000, which was estimated to have reached 587,800 by 2012. In 2014, it is believed this number has grown to about 600,000.