Lakes / Oregon / Wasco County / Rock Creek Reservoir
Rock Creek Reservoir, Wasco County, Oregon
88 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Oregon
45.22 degrees N, 121.39 degrees W - Wasco 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 Rock Creek Reservoir Stacks Up
- Larger than 54% of the 642 lakes counted in Oregon.
- About 66 miles from Portland, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Pine Hollow Reservoir | Wasco | 4.9 mi | 227 acres |
| Badger Lake | Hood River | 10 mi | 45 acres |
| Clear Lake | Wasco | 16 mi | 521 acres |
| Trillium Lake | Clackamas | 17 mi | 58 acres |
| Crow Creek Reservoir | Wasco | 18 mi | 26 acres |
| Timothy Lake | Clackamas | 21 mi | 1,400 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Rock Creek Reservoir
How Big Is Rock Creek Reservoir?
Rock Creek Reservoir covers 88 acres in Wasco County, Oregon.
What Is the Largest Lake in Wasco County?
Clear Lake is the largest lake in Wasco County, at 521 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 148978763). Verified October 30, 2026.