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Lake Defiance

Fishing spots, fishing reports, and regulations in

Illinois, United States

4.0·95 catches

Top fish species at Lake Defiance

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Check which species have trophy potential in Lake Defiance

Lake Defiance fishing reports

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Largemouth bass

length · weight

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Largemouth bass

18 in · 3 lb 2 oz

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Largemouth bass

length · weight

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Largemouth bass

length · weight

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Largemouth bass

length · weight

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Largemouth bass

length · weight

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General info

Lake Defiance is a lake located in McHenry County, Illinois, United States. It is most popular for fishing Largemouth bass, Northern pike, and Bluegill.

Location

42°19′4.5″N 88°13′34.9″W
Directions

Official website

dnr.illinois.gov

When are Largemouth Bass biting on Lake Defiance?

Learn what time of year and day to go fishing at Lake Defiance. 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 Lake Defiance, IL

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.

Regulations for top species

Season open: year-round
Largemouth bass

Largemouth bass

Regulation boundaryIL Illinois State Waters
Bag limit6

The maximum number of individual fish legally harvested per harvester per day. Bag limits are only for properly licensed anglers actively harvesting the species. People who are not actively harvesting or are not properly licensed (if a license is required) may NOT be counted for the purpose of bag limits.

Aggregate limit6

The maximum number of individual fish across an aggregate group of species legally harvested per harvester per day.

Additional information
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.
Edibility
Very good Catch, Clean, Cook Largemouth Bass by BlueGabe
Synonyms
Micropterus nigricans
Season open: year-round
Northern pike

Northern pike

Regulation boundaryIL Illinois State Waters
Bag limit3

The maximum number of individual fish legally harvested per harvester per day. Bag limits are only for properly licensed anglers actively harvesting the species. People who are not actively harvesting or are not properly licensed (if a license is required) may NOT be counted for the purpose of bag limits.

Min size24" (Total Length)

No person shall harvest any individual fish less than the minimum size limit.

Total length means the straight line distance from the most forward point of the head with the mouth closed, to the farthest tip of the tail with the tail compressed or squeezed, while the fish is lying on its side.

Additional information
All Northern Pike taken must be 24-inches total length or longer, except in the Mississippi River and Ohio River where there is no size limit. No more than 3 Northern Pike may be taken per day, except as specified under Site-Specific Regulations. Only statewide regulations are shown herein, but you can access Site-Specific Regulations online.
Synonyms
Esox lucius
Season open: year-round
Bluegill

Bluegill

Regulation boundaryIL Illinois State Waters
Additional information
There are no harvest or size limits except in those waters listed under Site-Specific Regulations. 
Edibility
Catch, Clean, Cook Bluegill
Synonyms
Lepomis macrochirus
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Local laws and licenses

Illinois fishing license

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Reviews of Lake Defiance

4.0
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5 ratings

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4
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1
Top reviews

Cities nearby

Lakemoor

1.9 miles away

Burtons Bridge

2.8 miles away

Island Lake

3.1 miles away

Prairie Grove

3.6 miles away

McHenry

3.7 miles away

Wauconda

5.5 miles away

Pistakee Highlands

5.9 miles away

Round Lake

6.4 miles away

Cary

7.3 miles away

Fox Lake

7.6 miles away

Lake Barrington

7.9 miles away

Crystal Lake

8.1 miles away

Fox Lake Hills

8.3 miles away

Round Lake Beach

8.5 miles away

Spring Grove

9.5 miles away

Greenwood

9.6 miles away

Grayslake

10.0 miles away

Woodstock

10.7 miles away

Lake in the Hills

10.7 miles away

Richmond

10.9 miles away

Lake Zurich

11.1 miles away

Mundelein

11.6 miles away

Lindenhurst

12.3 miles away

Antioch

13.4 miles away

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FAQ about Lake Defiance fishing

📍 Where is Lake Defiance located?
Lake Defiance is a lake located in McHenry County, Illinois, United States. Its coordinates are:
42°19′4.5″N 88°13′34.9″W
.
🎣 Where on Lake Defiance is it best to fish?
Find the best fishing spots on Lake Defiance 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.
🐟 What species are in Lake Defiance?
The most common species in Lake Defiance are:
📢 What are the latest Lake Defiance fishing reports?
The latest Lake Defiance fishing reports are:
🪪 Do I need a fishing license to fish at Lake Defiance?

Fishing in Illinois requires a valid state fishing license for anglers. Options include resident, non-resident, annual, short-term, and combination licenses, purchasable online or at licensed agents.

In Illinois, no fishing license is required for anglers under 16 or residents 65 and older. A few other exceptions worth knowing:

  • Free fishing days — most states designate 1–2 weekends a year where anyone can fish without a license

  • Tribal waters — tribal members fishing on tribal land operate under separate tribal regulations

  • Private ponds — landowners fishing their own water typically don't need a license

Non-residents usually pay more for a license than residents. Some species also require an extra stamp or endorsement on top of your base license.

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