Largest lakes & reservoirs in Southwest Region, AK by acres
There is no widely-accepted minimum surface area that defines a lake. What LakeLubbers describes as a lake, you might call a pond. Acreage of a lake (or sometimes square kilometers) is most often measured at the top surface area when the lake is at normal elevation. The surface area can be considerably smaller or larger when lake levels are lower or higher than normal. North America’s Lake Superior is the world’s largest freshwater lake by this measure.The other measure of a lake’s size is the lake’s water volume. By that measure, the world’s largest freshwater lake is Lake Baikal in Siberia.
You can find many of the world’s largest lakes (acres) on LakeLubbers in the comparison table below. Note: For some lakes, "Largest Lakes - Acres" data is unknown or does not apply, so you may see fewer lakes than the total 5 articles we have published for Southwest Region, AK lakes.
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Below are lakes within USA > US West Region > Alaska > Southwest Region, AK > Compared by surface area in acres. This list does not represent all lakes in Southwest Region, AK, only the 5 Southwest Region, AK lake articles we have published on the LakeLubbers website.
Lake name  |
Surface area in acres |
Lake description |
|---|---|---|
| Iliamna Lake, AK (Alaska, Southwest Region, AK, US West Region, USA) |
653,552 ac | Also known as Lake Iliamna Iliamna Lake, also known as Lake Iliamna, is the largest lake in Alaska and the second largest freshwater lake contained wholly within the United Stat… |
| Becharof Lake, AK (Alaska, Southwest Region, AK, US West Region, USA) |
289,705 ac | Becharof Lake, the second* largest lake in Alaska, is located on the Alaskan Peninsula. Stretching an incredible 290,000 acres, the lake measures 35 m… |
| Naknek Lake, AK (Alaska, Southwest Region, AK, US West Region, USA) |
154,880 ac | Naknek Lake is located southwest of Anchorage on the Alaskan Peninsula. The lake is the fifth largest in Alaska, covering 144,315 acres* in the heart… |
| Lake Clark, AK (Alaska, Southwest Region, AK, US West Region, USA) |
76,892 ac | Lake Clark is located about 150 miles southwest of Anchorage in southern Alaska. The lake spans 128 square miles, making it the seventh* largest fresh… |