West Linn, OR has a population of 26,242 and is the 1,640th largest city in the United States. The population density is 3,556 per sq mi which is 8880% higher than the Oregon average and 3825% higher than the national average. The median age in West Linn is 43 which is approximately 10% higher than the Oregon average of 39. In West Linn, 65% of the population over 15 years of age are married, 90% speak English and 2% speak Spanish. 43% of West Linn residents were born in Oregon, 46% were born out of state, 1% were born outside of the United States and 9% were foreign born.