🐟 What fish can you catch in Illiopolis?

Most commonly caught species around Illiopolis , IL : Largemouth bass - 2,689 reported catches Channel catfish - 878 reported catches Bluegill - 406 reported catches Black crappie - 293 reported catches Blue catfish - 240 reported catches .

📢 What are the latest Illiopolis fishing reports?

The latest Illiopolis , IL fishing reports are: @Mr.pittman reported a nice Black crappie at The Greenbrier . @Mr.pittman reported a nice Black crappie at The Greenbrier . @Mr.pittman reported a nice Largemouth bass at The Greenbrier . @EverythingButCarp reported a nice White crappie at Lake Decatur . @pudnite reported a nice Rainbow trout at Weldon Springs Lake . .

Fishing in Illiopolis, IL

Q: 🎣 Where to fish in Illiopolis, Illinois?

Anglers in Illiopolis , IL recommend these top fishing spots: Sangamon River , Wiggers Pond (Mount Pulaski Pond) , South Fork Sangamon River , Lake Fork .

Q: 📅 What is the best time to go fishing in Illiopolis?

Download the Fishbrain app and see today's Fishing and Weather Forecast for Illiopolis , IL . We give you weather trends and help you find the perfect window to catch your next personal best. With Fishbrain Pro , you will get the following capabilities: Plan smarter: Get hour-by-hour fishing weather conditions. Fish at peak times: Use BiteTime™ predictions to maximize catches. Stay ahead of the weather: Get hyper-local, real-time updates. .

Illinois, United States

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Top fish species in Illiopolis

Latest Illiopolis fishing reports

Black crappie

The Greenbrier

length · weight

Black crappie

The Greenbrier

15 in · 2 lb

Largemouth bass

The Greenbrier

18 in · 3 lb

White crappie

Lake Decatur

10 in · 1 lb

Rainbow trout

Weldon Springs Lake

length · weight

Channel catfish

Clinton Lake

length · weight

Black buffalo

South Fork Sangamon River

length · weight

Largemouth bass

Village Park

13 in · 2 lb

Black crappie

length · weight

Black crappie

length · weight

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Fishing regulations in Illiopolis

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 Illinois 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 18th, 2026. To view regulations for a different fish species, please click on your preferred species in the drop-down.

Select species

Largemouth bass

Seasons

Open

Bag limit

Aggregate

There is no statewide size limit. Daily harvest limit is 6 Bass, either singly or in the aggregate, except as specified under Site-Specific Regulations. Only statewide regulations are shown herein, but you can access Site-Specific Regulations online.

Very good Catch, Clean, Cook Largemouth Bass by BlueGabe

Micropterus nigricans

Regulations for

39°50′59.3″N 89°15′7.6″W

Regulations in the map

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FAQ about Illiopolis fishing

Anglers in Illiopolis, IL recommend these top fishing spots: Sangamon River, Wiggers Pond (Mount Pulaski Pond), South Fork Sangamon River, and Lake Fork.

Most commonly caught species around Illiopolis, IL:

Largemouth bass - 2,689 reported catches
Channel catfish - 878 reported catches
Bluegill - 406 reported catches
Black crappie - 293 reported catches
Blue catfish - 240 reported catches

The latest Illiopolis, IL fishing reports are:

@Mr.pittman reported a nice Black crappie at The Greenbrier.
@Mr.pittman reported a nice Black crappie at The Greenbrier.
@Mr.pittman reported a nice Largemouth bass at The Greenbrier.
@EverythingButCarp reported a nice White crappie at Lake Decatur.
@pudnite reported a nice Rainbow trout at Weldon Springs Lake.

Download the and see today's Fishing and Weather Forecast for Illiopolis, IL. We give you weather trends and help you find the perfect window to catch your next personal best. With Fishbrain Pro, you will get the following capabilities: