Idaho Lake Levels
Current water level for 26 lakes and reservoirs in Idaho, updated daily from public agency data.
Idaho lake register
Alphabetical current readings from public water agencies
| Lake / reservoirLake / reservoir | Current levelLevel | 7-day change7-day |
|---|---|---|
| American Falls Reservoir | 4309.56 ft4309.6 ft | +1.94 ft+1.9 ft |
| Anderson Ranch Reservoir | 4151.74 ft4151.7 ft | -0.51 ft-0.5 ft |
| Arrowrock Reservoir | 3125.91 ft3125.9 ft | -4.71 ft-4.7 ft |
| Black Canyon Reservoir | 2496.74 ft2496.7 ft | -0.27 ft-0.3 ft |
| Cj Strike Reservoir | 54.73 ft54.7 ft | +0.11 ft+0.1 ft |
| Coeur D Alene Lake | 26.32 ft26.3 ft | -0.27 ft-0.3 ft |
| Deadwood Reservoir | 5302.78 ft5302.8 ft | +0.31 ft+0.3 ft |
| Henrys Lake | 12.81 ft12.8 ft | -0.01 ft-0.0 ft |
| Island Park Reservoir | 6276.76 ft6276.8 ft | +1.92 ft+1.9 ft |
| Lake Cascade | 4815.44 ft4815.4 ft | -0.16 ft-0.2 ft |
| Lake Lowell | 2525.84 ft2525.8 ft | +0.12 ft+0.1 ft |
| Lake Waha | 3366.79 ft3366.8 ft | -0.05 ft-0.1 ft |
| Lake Walcott | 4237.89 ft4237.9 ft | -4.01 ft-4.0 ft |
| Little Wood River Reservoir | 5180.66 ft5180.7 ft | -2.21 ft-2.2 ft |
| Lucky Peak Lake | 2945.83 ft2945.8 ft | -6.14 ft-6.1 ft |
| Mackay Reservoir | 19.25 ft19.2 ft | -1.67 ft-1.7 ft |
| Mann Creek Reservoir | 2825.74 ft2825.7 ft | -0.07 ft-0.1 ft |
| Mann Lake | 1790.73 ft1790.7 ft | +0.24 ft+0.2 ft |
| Milner Lake | 11.04 ft11.0 ft | -0.06 ft-0.1 ft |
| Mud Lake | 3.32 ft3.3 ft | +0.01 ft+0.0 ft |
| Palisades Reservoir | 5520.36 ft5520.4 ft | -0.77 ft-0.8 ft |
| Payette Lake | 3.64 ft3.6 ft | -0.98 ft-1.0 ft |
| Priest Lake | 2.16 ft2.2 ft | -0.58 ft-0.6 ft |
| Ririe Reservoir | 5063.86 ft5063.9 ft | -0.51 ft-0.5 ft |
| Salmon River Canal Company Reservoir | 3.17 ft3.2 ft | -0.06 ft-0.1 ft |
| Soldiers Meadow Reservoir | 4497.76 ft4497.8 ft | -0.79 ft-0.8 ft |
Scroll across the table for all readings →
Idaho lake levels: common questions
Are Idaho lakes low right now?
12 of the 20 Idaho lakes with enough history to compare are in the bottom quarter of their own September record. That seasonal comparison matters more than the raw level: reservoirs are drawn down on a schedule, so a lake several feet below full pool in September may still be entirely normal for the date.
Which Idaho lake has changed most this week?
American Falls Reservoir has risen the most, +1.94 ft over seven days, and Lucky Peak Lake has fallen the most at -6.14 ft.
How often do Idaho lake levels update?
Each gauge publishes on its own schedule. Most report at least daily, some hourly. This page is rebuilt every day from the U.S. Bureau of Reclamation and the U.S. Geological Survey, and the number on an individual lake's page refreshes again in your browser when the agency posts a newer reading. Readings are provisional and can be revised.