Lakes / Oregon / Clackamas County / Lake Oswego
Lake Oswego, Oregon
432 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Oregon
45.41 degrees N, 122.69 degrees W - Clackamas County. State and county outlines drawn from Census boundary data; the lake marker is placed by its USGS National Hydrography Dataset coordinates, not by eye. Schematic - not a survey map.
How Lake Oswego Stacks Up
- Larger than 82% of the 642 lakes counted in Oregon.
- About 7 miles from Portland, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Mompano Reservoir | Clackamas | 11 mi | 52 acres |
| Smith Lake | Multnomah | 14 mi | 509 acres |
| Bybee Lake | Multnomah | 15 mi | 232 acres |
| Jewit Lake | Multnomah | 15 mi | 90 acres |
| Fairview Lake | Multnomah | 15 mi | 108 acres |
| Blue Lake | Multnomah | 15 mi | 66 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Lake Oswego
How Big Is Lake Oswego?
Lake Oswego covers 432 acres in Clackamas County, Oregon.
What Is the Largest Lake in Clackamas County?
Timothy Lake is the largest lake in Clackamas County, at 1,400 acres.
Largest Lakes in Oregon
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Upper Klamath Lake | Klamath | 62,095 acres | - |
| 2 | Lake Umatilla | Morrow | 50,042 acres | - |
| 3 | Lake Abert | Lake | 37,137 acres | - |
| 4 | Summer Lake | Lake | 31,602 acres | - |
| 5 | Harney Lake | Harney | 31,290 acres | - |
All 642 Oregon lakes ranked by surface area
Sources: USGS NHD (The National Map NHD MapServer layer 12) named waterbodies FTYPE 390/436; counties via Census point-in-polygon lake data (ID 152897575). Verified October 30, 2026.