Lakes / Oregon / Crook County / Lillard Reservoir
Lillard Reservoir, Oregon
43 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Oregon
43.89 degrees N, 119.85 degrees W - Crook 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 Lillard Reservoir Stacks Up
- Larger than 27% of the 642 lakes counted in Oregon.
- About 74 miles from Bend, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Williams Reservoir | Harney | 6.7 mi | 67 acres |
| Grindstone Reservoir | Crook | 8.8 mi | 35 acres |
| Delintment Lake | Harney | 11 mi | 62 acres |
| Sheep Lake | Harney | 22 mi | 351 acres |
| Chickahominy Reservoir | Harney | 25 mi | 485 acres |
| Rickmans Camp Creek Reservoir Number Two | Crook | 27 mi | 32 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Lillard Reservoir
How Big Is Lillard Reservoir?
Lillard Reservoir covers 43 acres in Crook County, Oregon.
What Is the Largest Lake in Crook County?
Prineville Reservoir is the largest lake in Crook County, at 2,861 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 145326379). Verified October 30, 2026.