Lakes / Oregon / Deschutes County / Upper Tumalo Reservoir
Upper Tumalo Reservoir, Oregon
140 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Oregon
44.14 degrees N, 121.42 degrees W - Deschutes 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 Upper Tumalo Reservoir Stacks Up
- Larger than 66% of the 642 lakes counted in Oregon.
- About 8 miles from Bend, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Three Creek Lake | Deschutes | 10 mi | 76 acres |
| Todd Lake | Deschutes | 15 mi | 29 acres |
| Sparks Lake | Deschutes | 18 mi | 317 acres |
| Hosmer Lake | Deschutes | 21 mi | 250 acres |
| Elk Lake | Deschutes | 22 mi | 387 acres |
| Little Lava Lake | Deschutes | 23 mi | 112 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Upper Tumalo Reservoir
How Big Is Upper Tumalo Reservoir?
Upper Tumalo Reservoir covers 140 acres in Deschutes County, Oregon.
What Is the Largest Lake in Deschutes County?
Wickiup Reservoir is the largest lake in Deschutes County, at 10,170 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 149197887). Verified October 30, 2026.