Lakes / Alaska / Petersburg County / Irish Lakes
Irish Lakes, Petersburg County, Alaska
110 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Alaska
56.67 degrees N, 133.53 degrees W - Petersburg 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 Lakes Stacks Up
- Larger than 40% of the 2,450 lakes counted in Alaska.
- About 117 miles from Juneau, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Irish Lakes | Petersburg | 0.9 mi | 42 acres |
| Kushneahin Lake | Petersburg | 12 mi | 135 acres |
| Towers Lake | Petersburg | 14 mi | 126 acres |
| Barrie Lake | Petersburg | 14 mi | 31 acres |
| Kah Sheets Lake | Petersburg | 15 mi | 384 acres |
| Petersburg Lake | Petersburg | 19 mi | 180 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Irish Lakes
How Big Is Irish Lakes?
Irish Lakes covers 110 acres in Petersburg County, Alaska.
What Is the Largest Lake in Petersburg County?
Farragut Lake is the largest lake in Petersburg County, at 1,231 acres.
Largest Lakes in Alaska
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Iliamna Lake | Lake and Peninsula | 654,518 acres | - |
| 2 | Becharof Lake | Lake and Peninsula | 289,706 acres | - |
| 3 | Teshekpuk Lake | North Slope | 206,614 acres | - |
| 4 | Naknek Lake | Lake and Peninsula | 145,357 acres | - |
| 5 | Dall Lake | Bethel | 111,681 acres | - |
All 2,450 Alaska 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 121955063). Verified October 30, 2026.