Deepest lakes & reservoirs in Idaho by maximum depth (ft)
The estimated greatest depth of the water in a lake can be measured at the lake’s normal elevation. If the water volume and surface area of a lake are known, an estimate of the lake’s average depth can be calculated:Water volume ÷ Surface Area = Average Depth
Example: 1,000,000 acre-feet ÷ 20,000 acres = 50 feet average depth.
You can find many of the the world’s deepest lakes on LakeLubbers. If you sort the list, you will find the (maximum depth of) the shallowest lakes in our database. Note: For some lakes, lake depth data is unknown, so this table may display fewer lakes than the total 23 articles we have published for Idaho lakes.
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Below are lakes within USA > US West Region > Idaho > Compared by maximum depth in feet. This list does not represent all lakes in Idaho, only the 23 Idaho lake articles we have published on the LakeLubbers website.
Lake name  |
Max depth in feet |
Lake description |
|---|---|---|
| Lake Pend Oreille, ID (Idaho, Northern Idaho, US West Region, USA) |
1,152 ft | 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,… |
| Dworshak Reservoir, ID (Idaho, North Central Idaho, US West Region, USA) |
650 ft | Dworshak Reservoir is an excellent outdoor recreation site with a great water playground of over 19,000 acres. Located in northern Idaho near the town… |
| Priest Lake, ID (Idaho, Northern Idaho, US West Region, USA) |
369 ft | 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… |
| Anderson Ranch Reservoir (Idaho, Southwestern Idaho, US West Region, USA) |
315 ft | One of the true gems of the Idaho reservoir system is Anderson Ranch Reservoir. Completed along the South Fork of the Boise River in 1950, this projec… |
| Payette Lake, ID (Idaho, Southwestern Idaho, US West Region, USA) |
304 ft | Also known as Big Payette Lake One hundred miles north of Boise, nearly surrounded by Payette National Forest, lies breathtaking Payette Lake. Nestled beneath the peaks of the West… |
| Hells Canyon Reservoirs (Eastern Oregon, Idaho, Oregon, Southwestern Idaho, US West Region, USA) |
300 ft | Also known as Brownlee Reservoir, Oxbow Reservoir, Hells Canyon Reservoir The three Hells Canyon Reservoirs are one of southwest Idaho’s most scenic locations. Idaho can’t claim this national treasure alone, however as it sh… |
| Lucky Peak Lake (Idaho, Southwestern Idaho, US West Region, USA) |
258 ft | Also known as Lucky Peak Reservoir Home of Idaho’s most visited state park, Lucky Peak Lake (sometimes called Lucky Peak Reservoir) covers over 3,000 acres just outside of the capital c… |
| Coeur d’Alene Lake, ID (Idaho, Northern Idaho, US West Region, USA) |
220 ft | 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… |
| Bear Lake, ID/UT (Cache Valley Region, UT, Idaho, Southeastern Idaho, US West Region, USA, Utah) |
208 ft | A natural freshwater lake straddling the borders of Utah and Idaho, Bear Lake is a 70,000-acre turquoise jewel that lives up to its moniker of “Caribb… |
| Hayden Lake, ID (Idaho, Northern Idaho, US West Region, USA) |
185 ft | Hayden Lake is located in the scenic panhandle of North Idaho in Kootenai County. With its sparkling water, pristine sandy beaches and timbered shorel… |
| Williams Lake ID (Central Idaho, Idaho, US West Region, USA) |
185 ft | The swish and pop of a fly rod breaks the early morning silence on Williams Lake in the central region of Idaho. A heron wades in the reeds along the… |
| Palisades Reservoir, ID/WY (Eastern Idaho, Idaho, Southwest Wyoming, US West Region, USA, Wyoming) |
168 ft | Palisades Reservoir is set in southeast Idaho, east of Idaho Falls in a beautiful river valley. The southern end of the reservoir extends into Wyoming… |