Lakes / Oregon / Harney County / Hay Lake
Hay Lake, Oregon
132 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Oregon
43.47 degrees N, 119.79 degrees W - Harney 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 Hay Lake Stacks Up
- Larger than 65% of the 642 lakes counted in Oregon.
- About 86 miles from Bend, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Sheep Lake | Harney | 7.3 mi | 351 acres |
| Chickahominy Reservoir | Harney | 9.8 mi | 485 acres |
| Tired Horse Reservoir | Lake | 13 mi | 80 acres |
| Pilot Lake Reservoir | Lake | 16 mi | 25 acres |
| False Waterhole | Lake | 17 mi | 45 acres |
| Hassler Lake | Lake | 18 mi | 36 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Hay Lake
How Big Is Hay Lake?
Hay Lake covers 132 acres in Harney County, Oregon.
What Is the Largest Lake in Harney County?
Harney Lake is the largest lake in Harney County, at 31,290 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 149765363). Verified October 30, 2026.