Lakes / Oregon / Harney County / Irish Lake
Irish Lake, Harney County, Oregon
45 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Oregon
42.92 degrees N, 118.94 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 Irish Lake Stacks Up
- Larger than 31% of the 642 lakes counted in Oregon.
- About 143 miles from Bend, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Fivemile Lake | Harney | 2.4 mi | 44 acres |
| Baca Lake | Harney | 3.9 mi | 276 acres |
| Peanut Lake | Harney | 4.0 mi | 53 acres |
| Baca Lake | Harney | 4.4 mi | 426 acres |
| Knox Pond | Harney | 4.4 mi | 288 acres |
| Krumbo Reservoir | Harney | 7.0 mi | 219 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Irish Lake
How Big Is Irish Lake?
Irish Lake covers 45 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 146960479). Verified October 30, 2026.