McCook Lake
River in South Dakota · 225 acres · near North Sioux City
McCook Lake has 1 boat ramp listed as public.
Zebra mussels
South Dakota Game, Fish and Parks lists this water as infested with zebra mussels. Clean, drain and dry your boat, trailer and gear before you leave, and do not move water, plants or live bait to another water.
South Dakota Game, Fish and Parks · checked October 18, 2026
Launches
- McCook Lake Boat Launch · Boat ramp · near North Sioux City
Community
Where people who fish, boat and paddle McCook Lake talk about it. Lake associations, clubs and local groups will be added as we find them.