Top fish species at South Island Lake
Check which species have trophy potential in South Island Lake
South Island Lake fishing reports
6 in · 1 lb
length · weight
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When are Northern Pike biting on South Island Lake?
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Fishing regulations at South Island 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 Yellow perch as of April 22nd, 2026. To view regulations for a different fish species, please click on your preferred species in the drop-down.
Seasons
Bag limit
Measurement
Regulations for
FAQ about South Island Lake fishing
- Yellow perch - 4 members reported to have caught this fish
- Northern pike - 2 members reported to have caught this fish
- White crappie - 2 members reported to have caught this fish
- @Adam88 reported a nice Walleye.
- @Bricks_L9 reported a nice Walleye.
- @Catfishjafo reported a nice Northern pike.
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