Lakes / Oregon / Clackamas County / Deardorff Reservoir
Deardorff Reservoir, Oregon
57 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Oregon
45.00 degrees N, 122.55 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 Deardorff Reservoir Stacks Up
- Larger than 40% of the 642 lakes counted in Oregon.
- About 24 miles from Salem, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Silver Creek Reservoir | Marion | 9.6 mi | 45 acres |
| North Fork Reservoir | Clackamas | 21 mi | 44 acres |
| North Fork Reservoir | Clackamas | 21 mi | 218 acres |
| Faraday Lake | Clackamas | 21 mi | 48 acres |
| Mompano Reservoir | Clackamas | 21 mi | 52 acres |
| Estacada Lake | Clackamas | 22 mi | 60 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Deardorff Reservoir
How Big Is Deardorff Reservoir?
Deardorff Reservoir covers 57 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 162618218). Verified October 30, 2026.