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McCook Lake

Fishing spots, fishing reports, and regulations in

South Dakota, United States

4.6·254 catches

Top fish species at McCook Lake

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McCook Lake fishing reports

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Common carp

length · weight

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Longnose gar

length · weight

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White bass

length · weight

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Smallmouth bass

23 in · 6 lb

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Flathead catfish

32 in · 15 lb

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Largemouth bass

21 in · 5 lb

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General info

McCook Lake is a lake located in Union County, South Dakota, United States. It is most popular for fishing Largemouth bass, Channel catfish, and White bass.

Location

42°32′15.3″N 96°30′24.3″W
Directions

Amenities

When are Largemouth Bass biting on McCook Lake?

Learn what time of year and day to go fishing at McCook Lake. Download Fishbrain today to look for new fishing spots, scout new fishing access, or prep for your next trip.

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Fishing regulations at McCook Lake, SD

Disclaimer: Always check local fishing regulations, water access rights and land ownership before fishing, regardless of any catches logged in that area by the Fishbrain community. Fishbrain has mapped millions of acres of government-owned land across the USA to help you identify potential fishing access, but you are responsible for ensuring compliance with all legal requirements.

Fishing regulations in South Dakota can change throughout the year. Make sure to check this page before fishing for the most up to date rules and regulations for the current season. Local regulations govern when you can fish, the max size of the fish you can keep, how many fish you can keep, and more.

Below you will see fishing regulations for catching Largemouth bass as of April 22nd, 2026. To view regulations for a different fish species, please click on your preferred species in the drop-down.

Largemouth bass

Seasons

Open

Bag limit

5

Measurement

Total Length

Aggregate

5

Micropterus nigricans

South Dakota / Iowa Border Waters: Any licensed angler may fish from boat or either bank in the South Dakota-Iowa border waters of the Big Sioux River if the angler complies with the laws of the state in which they are licensed or the state in which they are fishing, whichever are more restrictive.

Regulations for

42°32′15.3″N 96°30′24.3″W
Regulations in the map
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Local laws and licenses

South Dakota fishing license

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Reviews of McCook Lake

4.6
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13 ratings

5
4
3
2
1
Top reviews

Cities nearby

Dakota Dunes

3.3 miles away

Jefferson

5.5 miles away

Sioux City

6.6 miles away

Jackson

7.0 miles away

South Sioux City

7.1 miles away

Ponca

10.5 miles away

Hubbard

11.3 miles away

Hinton

12.1 miles away

Sergeant Bluff

12.5 miles away

Waterbury

12.9 miles away

Elk Point

13.3 miles away

Homer

14.9 miles away

Westfield

15.9 miles away

Bronson

17.5 miles away

Salix

18.5 miles away

Allen

19.1 miles away

Newcastle

20.3 miles away

Winnebago

20.8 miles away

Emerson

21.1 miles away

Burbank

21.9 miles away

Moville

22.6 miles away

Le Mars

23.9 miles away

Wakefield

26.1 miles away

Macy

30.0 miles away

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FAQ about McCook Lake fishing

McCook Lake is a lake located in Union County, South Dakota, United States. Its coordinates are:
42°32′15.3″N 96°30′24.3″W
.
Find the best fishing spots on McCook Lake by looking at where other anglers have caught fish. This can easily be done in the where it is also possible to see big fish potential and how good fishing is right now along with Garmin® depth maps.
The most common species in McCook Lake are:
The latest McCook Lake fishing reports are:
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