Lakes / Oregon / Multnomah County / Blue Lake
Blue Lake, Multnomah County, Oregon
66 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Oregon
45.55 degrees N, 122.45 degrees W - Multnomah 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 Blue Lake Stacks Up
- Larger than 46% of the 642 lakes counted in Oregon.
- About 11 miles from Portland, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Fairview Lake | Multnomah | 0.3 mi | 108 acres |
| Jewit Lake | Multnomah | 2.9 mi | 90 acres |
| Smith Lake | Multnomah | 14 mi | 509 acres |
| Bybee Lake | Multnomah | 15 mi | 232 acres |
| Lake Oswego | Clackamas | 15 mi | 432 acres |
| Bull Run Reservoir Number Two | Clackamas | 17 mi | 460 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Blue Lake
How Big Is Blue Lake?
Blue Lake covers 66 acres in Multnomah County, Oregon.
What Is the Largest Lake in Multnomah County?
Sturgeon Lake is the largest lake in Multnomah County, at 3,166 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 152897443). Verified October 30, 2026.