Hayden Lake

Lake in Idaho · 4,331 acres · near Hayden, Hayden Lake

Hayden Lake has 2 boat ramps listed as public.

Algal bloom health advisory

Idaho Department of Health and Welfare has a cyanobacteria health advisory for this water (updated August 7, 2026). Avoid contact with discoloured water or scum, and keep pets and children out of it.

Idaho Department of Health and Welfare · checked October 18, 2026

Past algal blooms

Harmful algal blooms reported on this water (state reports compiled by U.S. EPA): 2015, 2016, 2021 and 2024 to 2026.

state reports compiled by U.S. EPA · checked October 18, 2026

Launches

Hayden Lake Sportsman Park · Boat ramp · near Hayden
Honeysuckle Beach Boat Ramp · Boat ramp · near Hayden Lake

Community

Where people who fish, boat and paddle Hayden Lake talk about it. Lake associations, clubs and local groups will be added as we find them.

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Wikidata: Q49303687