What the Des Plaines River offers anglers

The Des Plaines River is a hardworking Midwestern stream that flows roughly 130 miles from Wisconsin through Illinois before joining the Kankakee River. It's not a glamorous destination—the river winds through suburbs, industrial areas, and farmland—but it holds walleye, channel catfish, flathead catfish, smallmouth bass, and carp in sections that most anglers overlook. The upper reaches near Kenosha and Wilmot, Wisconsin are cleaner and cooler; the middle sections around Libertyville and Des Plaines, Illinois warm up and collect more silt but concentrate fish around structure. The lower river near Joliet becomes slower and deeper, favoring catfish and carp.

What makes the Des Plaines worth your time is that it rarely gets crowded. Local anglers know the good holes, but the river doesn't draw the weekend traffic of the Fox or the Illinois. You can fish walleye at dawn without competing for bank space, and you can catch catfish at night in near-solitude. The river also responds quickly to rain—it rises and muddies fast, which can shut down sight-feeding fish but concentrates walleye and catfish in deeper holes where they hunt by smell and feel.

Key Takeaways

  • Walleye fishing is best in spring (March through May) and fall (September through October) in the upper Wisconsin sections and around the Libertyville dam pool in Illinois.
  • Channel catfish and flathead catfish are present year-round, with summer and fall nights producing the most consistent action on live bait and cut shad.
  • Smallmouth bass inhabit rocky areas and current breaks throughout the river, especially in spring and early summer, and respond to crankbaits and soft plastics.
  • The Des Plaines rises and muddies quickly after rain, which can shut down sight-feeding fish but concentrates walleye and catfish in deeper holes.
  • Access points vary by state and section; Wisconsin sections require a Wisconsin license, Illinois sections require an Illinois license, and some public access areas charge a small fee or require parking permits.

Walleye fishing in the upper river and dam pools

Walleye in the Des Plaines are most reliable in spring and fall, when water temperatures drop into the 50s and 60s. The upper river near Kenosha and Wilmot, Wisconsin holds a resident population that feeds aggressively in April and May. Fish the outside bends where current scours deeper holes, and work live shiners or small crankbaits in 6 to 12 feet of water. Dawn and dusk are prime, but overcast days produce all day.

The Libertyville dam pool in Illinois (roughly 20 miles north of Chicago) is the most consistent walleye spot on the lower river. Walleye stack below the dam in spring and again in September and October. Fish live bait on a slip sinker rig in 8 to 15 feet of water, or cast jigs tipped with minnows along the dam face and the current seams on either side. The pool can get crowded on weekends, so fish early morning or weekday evenings. Water release schedules from the dam affect current strength; call ahead or check the Libertyville Park District website for release times.

Catfish: channel and flathead year-round

Channel catfish are the most abundant catfish in the Des Plaines and bite consistently from June through October. Fish cut shad, chicken liver, or stink baits on the bottom in deeper holes—the lower river near Joliet and the pools below dams are most productive. Night fishing is more reliable than day fishing, and a simple three-way rig with a sinker and a short leader to a circle hook will catch fish. Expect catfish in the 2 to 8-pound range, with occasional fish pushing 15 pounds.

Flathead catfish have expanded into the Des Plaines over the past 15 years and now offer a different kind of fishing. Flatheads are aggressive predators that hunt live baitfish—use 4 to 8-inch live bluegill, shad, or shiners fished on a heavy rod and braided line. Fish at night, especially in summer and early fall, and be ready for hard runs. Flatheads are nocturnal and rarely bite during the day. The lower river and the dam pools hold the most flatheads, and they grow larger than channel catfish—10 to 30 pounds is not uncommon.

Smallmouth bass and carp in spring and summer

Smallmouth bass are present throughout the Des Plaines but concentrate in rocky areas, current breaks, and around bridge pilings. Spring (April and May) and early summer (June and July) are best. Fish crankbaits that mimic shiners, or cast soft plastics like 4-inch tubes and swimbaits along structure. The upper Wisconsin sections have cleaner water and slightly better smallmouth populations than the lower river, but good fish live throughout.

Carp are abundant and often overlooked. The Des Plaines holds both common carp and grass carp, and they grow large—20 to 40-pound fish are realistic. Fish corn, dough balls, or specialized carp baits in slower, deeper sections, especially near the lower river. Carp fishing requires patience and a heavy rod, but it's a legitimate way to spend a summer evening and land a powerful fish.

Access points and parking

Wisconsin access is limited but available. The Kenosha County Parks system maintains a few public areas near Kenosha and Wilmot; check the Kenosha County Parks website for current access and parking. Some sections are posted private, so always look for public signs before entering.

Illinois access is more developed. The Des Plaines River Trail runs much of the river's length through the Chicago suburbs and offers multiple parking areas and bank access. Key spots include the Libertyville dam area (parking at Libertyville Park District facilities), the Des Plaines River Greenway near Des Plaines, and access points near Joliet. Some areas require a parking permit or small fee; check with the local park district before you go. The Illinois Department of Natural Resources website lists public access areas by county.

Both states require a valid fishing license. A Wisconsin license is required for any fishing in Wisconsin waters; an Illinois license is required for Illinois waters. You cannot use one state's license in the other. Licenses are sold online and at sporting goods stores in both states.

Seasonal patterns and water conditions

Spring (March through May) brings walleye and smallmouth into shallow water as temperatures rise. Water levels are often high from snowmelt and rain, and the river can be murky. Fish deeper holes and current breaks where fish concentrate.

Summer (June through August) warms the river and can slow walleye fishing, but catfish and carp bite well at night. Smallmouth remain active in early summer but slow as water temperatures exceed 75 degrees. The river can become very low by late summer, concentrating fish in deeper pools.

Fall (September through October) cools the water and triggers aggressive feeding in walleye and smallmouth. This is one of the best times to fish the Des Plaines. Water levels are often moderate, and visibility improves.

Winter (November through February) slows most fishing, but catfish continue to bite in deeper holes. The river rarely freezes solid enough to ice fish safely.

Gear and tackle recommendations

For walleye, a 6 to 7-foot medium-action spinning rod with 8 to 10-pound monofilament or braided line works well. Jigs in 1/4 to 1/2-ounce sizes, live shiners, and small crankbaits (2 to 3 inches) are standard. A slip sinker rig with a live minnow is also effective.

For catfish, use a heavier rod—a 7 to 8-foot medium-heavy spinning or baitcasting rod with 12 to 20-pound line. Circle hooks in sizes 2/0 to 8/0 are standard; they hook themselves and reduce gut-hooking. A three-way rig or a simple slip sinker rig works well. For flatheads, use braided line (20 to 30-pound) because it provides better hooksets and handles the hard runs.

For smallmouth, a 6 to 6.5-foot medium spinning rod with 8 to 10-pound line is ideal. Crankbaits, soft plastics, and small spinnerbaits all work. For carp, use a heavy rod and 15 to 20-pound line; carp are strong and will test your gear.

Frequently Asked Questions

Do I need a Wisconsin license to fish the Des Plaines in Wisconsin and an Illinois license for Illinois sections?

Yes. Each state requires a valid license for its waters. If you fish both states, you need both licenses. Licenses are sold online through the Wisconsin Department of Natural Resources and the Illinois Department of Natural Resources websites, and at sporting goods stores in both states.

What's the best time to catch walleye on the Des Plaines?

Spring (March through May) and fall (September through October) are most reliable. Water temperatures in the 50s and 60s trigger aggressive feeding. The Libertyville dam pool in Illinois is the most consistent spot year-round, but the upper Wisconsin sections are also productive in spring.

Can I fish the Des Plaines at night for catfish?

Yes. Night fishing for channel catfish and flatheads is common and often more productive than day fishing. Use a headlamp or flashlight to navigate, and be aware of your surroundings. Some access areas close at dusk, so check local park rules before you go.

How do I know if the river is too high or too muddy to fish?

High water and mud can shut down sight-feeding fish like smallmouth and walleye, but they concentrate catfish and walleye in deeper holes. If the water is very muddy (you can't see your hand at arm's length), switch to catfish or wait for the river to clear. The U.S. Geological Survey provides real-time flow data for the Des Plaines; check the USGS website for current conditions.

Are there any size or bag limits on the Des Plaines?

Yes, and they differ between Wisconsin and Illinois. Wisconsin has specific size and bag limits for walleye, bass, and catfish; Illinois has different limits. Check the current regulations on the Wisconsin DNR and Illinois DNR websites before you fish, as limits can change year to year.