Largest lakes & reservoirs in Northern Idaho by shoreline length
The length of the exterior shoreline around a lake is measured at the lake’s normal elevation. The shoreline length can be considerably shorter or longer when lake water levels are lower or higher than normal. A lake with many coves has a much longer shoreline than a lake of similar surface area that is nearly circular in shape.When known, the shoreline miles that we report in our statistics include only the lake’s exterior shoreline, and exclude the shorelines of islands located within a lake’s boundaries. In lakes with many islands, those islands’ combined shorelines may exceed a lake’s exterior shoreline.
You can find many of the world’s longest-shoreline lakes on LakeLubbers. Note: For some lakes, "Longest Shorelines" data is unknown or does not apply, so this table may display fewer lakes than the total 7 articles we have published for Northern Idaho lakes.
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Below are lakes within USA > US West Region > Idaho > Northern Idaho > Compared by longest shoreline length in miles. This list does not represent all lakes in Northern Idaho, only the 7 Northern Idaho lake articles we have published on the LakeLubbers website.
Lake name  |
Shoreline length in miles |
Lake description |
|---|---|---|
| Coeur d’Alene Lake, ID (Idaho, Northern Idaho, US West Region, USA) |
135 mi | Also known as Lake Coeur d'Alene Nestled at the foothills of the Rocky Mountains in the Northern Panhandle of Idaho, 30,000-acre Coeur d’Alene Lake (pronounced Core-de-lane) is a spec… |
| Lake Pend Oreille, ID (Idaho, Northern Idaho, US West Region, USA) |
111 mi | Also known as Albeni Falls Dam Set in a valley carved by glaciers from Canada, Lake Pend Oreille (pond-a-RAY) is surrounded by mountains with altitudes exceeding 6,000 feet. Its 85,… |
| Priest Lake, ID (Idaho, Northern Idaho, US West Region, USA) |
70 mi | Located in the most northern portion of Idaho’s Panhandle, Priest Lake is within 30 miles of the Canadian Border. Priest Lake was naturally created at… |
| Hayden Lake, ID (Idaho, Northern Idaho, US West Region, USA) |
40 mi | Hayden Lake is located in the scenic panhandle of North Idaho in Kootenai County. With its sparkling water, pristine sandy beaches and timbered shorel… |
| Cocolalla Lake (Idaho, Northern Idaho, US West Region, USA) |
10 mi | Cocolalla Lake, located in Idaho’s Northern Region, is an example of the recreational opportunities the Panhandle has to offer. The 805-acre lake is l… |