West Linn is a city in Clackamas County, Oregon, United States. An affluent southern suburb within the Portland metropolitan area, West Linn has a history of early development, prompted by the opportunity to harvest energy from nearby Willamette Falls. It was named after U.S. Senator Lewis F. Linn of Ste. Genevieve, Missouri, who had advocated the American occupation of Oregon as a counterclaim to the British. As of the 2010 census, the city had a population of 25,109.
According to the United States Census Bureau, the city has a total area of 8.05 square miles (20.85 km), of which, 7.39 square miles (19.14 km) is land and 0.66 square miles (1.71 km) is water. The city is located between the Willamette and Tualatin rivers; it includes the former townsites/developments of Willamette, Bolton, Multnomah City, Sunset City, and West Oregon City. Willamette was incorporated in 1908, the City of West Linn was incorporated in 1913, and the two towns merged in 1916. Later annexations brought in the Cedaroak, Marylhurst and Hidden Springs neighborhoods. Infill created the Tanner Basin and Tannler neighborhoods.
The Nature Conservancy maintains the Camassia Natural Area in central West Linn as one of its conservancy preserves. The 26-acre (11 ha)-area is located on a rocky plateau exposed by the Bretz Floods and now named after the camas which bloom there in spring; it hosts about 300 other species, including the white rock larkspur, a species located in only a half dozen other places in the world. It supports Oregon white oak-madrone woodlands, a stand of quaking aspen, wet meadows, ponds, and vernal pools.
The Mary S. Young State Recreation Area, located between Oregon Route 43 and the Willamette River, featuring a large off leash dog area, soccer fields and 5–8 miles worth of trails is located in West Linn.
West Linn is located in the area where the Willamette Meteorite was placed by the Missoula Floods.
The median income for a household in the city was $72,010, and the median income for a family was $83,252 (These figures had risen to $94,844 and $108,821 respectively as of a 2007 estimate). Males had a median income of $61,458 versus $38,733 for females. The per capita income for the city was $34,671, among the state’s top five. About 2.9% of families and 3.9% of the population were below the poverty line, including 3.6% of those under age 18 and 4.2% of those age 65 or over.
As of the census of 2010, there were 25,109 people, 9,523 households, and 7,081 families residing in the city. The population density was 3,397.7 inhabitants per square mile (1,311.9/km). There were 10,035 housing units at an average density of 1,357.9 per square mile (524.3/km). The racial makeup of the city was 90.7% White, 0.7% African American, 0.3% Native American, 4.0% Asian, 0.1% Pacific Islander, 1.0% from other races, and 3.1% from two or more races. Hispanic or Latino of any race were 4.0% of the population.
There were 9,523 households of which 37.8% had children under the age of 18 living with them, 61.8% were married couples living together, 9.0% had a female householder with no husband present, 3.6% had a male householder with no wife present, and 25.6% were non-families. 20.6% of all households were made up of individuals and 6.3% had someone living alone who was 65 years of age or older. The average household size was 2.62 and the average family size was 3.04.
The median age in the city was 41.5 years. 26.3% of residents were under the age of 18; 5.9% were between the ages of 18 and 24; 23.3% were from 25 to 44; 33.4% were from 45 to 64; and 11.1% were 65 years of age or older. The gender makeup of the city was 48.7% male and 51.3% female.