Navigate: 1  What is Rheumatoid Arthritis? 2  The causes of RA. 3  Rheumatoid Arthritis symptoms. 4  Diagnosing RA. 5  Rheumatoid Arthritis (RA) vs. Osteoarthritis (OA) 6  Next steps.
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.
With 609,456 residents (2013 estimate), Portland is the largest city in Oregon and ranks 29th in the U.S. Its metro population of 2,314,554 (2013 estimate) is 24th. The Willamette Valley in western Oregon is the state's most densely populated area, home to eight of the ten most populous cities.regon is 295 miles (475 km) north to south at longest distance, and 395 miles (636 km) east to west at longest distance. In land and water area, Oregon is the ninth largest state, covering 98,381 square miles (254,810 km 2).