Lake Oswego Flag

Lake Oswego

County Seat:
No
Area (mi²):
10.83
State:
Oregon

Lake Oswego is a city located in Clackamas County, Oregon. Lake Oswego has a 2026 population of 40,029. Lake Oswego is currently declining at a rate of -0.22% annually and its population has decreased by -2.1% since the most recent census, which recorded a population of 40,889 in 2020.

40K
Total Population
3,696
Density (mi²)
-88 -0.22%
Growth

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)