West Linn is a city in Clackamas County, Oregon, United States. As of the 2010 census, the city had a population of 25,109.
Major Robert Moore was an early settler arriving in 1839—before the Champoeg Meetings—having been the senior member of the first attempt to create an American state in Oregon, the Peoria Party.Sometime after journeying around the Willamette Valley and Columbia Basin, Moore bought title to approx. 1,000 acres (400 ha) on the west side of Willamette Falls, across the Willamette River from Oregon City, from a local Native American chief,on which he platted a town he called "Robin's Nest" in early 1843. He also filed a provisional claim with the then government of the Oregon Country, not knowing if his transaction would be honored by the eventual governing laws. The Oregon Territorial Legislature voted to rename it Linn City on December 22, 1845 as a memorial to Senator Lewis F. Linn after whom Linn County is also named. Linn was a neighbor and family friend of the Moores from their time as settlers in the early Missouri Territory.West Linn was incorporated in 1913 and merged with the adjacent town of Willamette in 1916, which had incorporated five years earlier.When the City of West Linn incorporated in 1913, it encompassed West Oregon City, Bolton, Sunset and Willamette Heights.