What Jimmerson Lake offers anglers

Jimmerson Lake sits in Florence County in the heart of Wisconsin's North Woods, about 45 minutes northeast of Iron River. It's a shallow, weedy lake that runs roughly 1,200 acres and holds a solid population of walleye, northern pike, and largemouth bass. The lake's character—murky water, dense vegetation, and soft bottom—makes it a different kind of fishing than the clearer, deeper lakes you'll find elsewhere in the Northeast region. If you're after walleye in summer or pike in spring, and you don't mind working shallow water and reading weed lines, Jimmerson rewards that effort.

The lake has public boat access at the Jimmerson Lake public landing on the south shore, which is maintained by the Florence County Parks Department. The ramp is gravel, two lanes, and typically in decent shape through the season. Parking is available, though it fills on weekends during peak summer and early fall. There's no fuel dock on the lake, so fill up in Florence or Iron River before you launch.

Key Takeaways

  • Jimmerson Lake is a shallow, weedy 1,200-acre lake in Florence County that holds walleye, pike, and largemouth bass year-round.
  • Public boat access is available at the south-shore landing; the ramp is gravel and free to use, but there is no fuel dock on the lake.
  • Summer walleye fishing works best along weed edges and deeper holes in 8 to 14 feet of water, especially at dawn and dusk.
  • Spring pike fishing peaks in April and May when fish move into shallow bays and vegetation to spawn.
  • A Wisconsin fishing license is required; walleye and pike have daily bag limits that vary by season and should be checked before you fish.

Summer walleye patterns on shallow water

Jimmerson's walleye bite in summer depends almost entirely on finding the weed edge. The lake's shallow basin means walleye don't have the deep-water refuge they prefer in clearer lakes, so they hug the vegetation line where they can hunt in lower light and retreat into cover. Focus on the transition where dense weeds meet open water—typically in 8 to 14 feet of water. Early morning and the last two hours before dark are your best windows; midday fishing is slow unless you're working deeper holes or the shadiest weed pockets.

Live bait works better than lures on Jimmerson because the water clarity is poor and walleye rely on feel and vibration. A simple slip-sinker rig with a live minnow—fathead or shiner, 3 to 4 inches—drifted along the weed edge will catch fish. Jigs tipped with minnow or crawlers also work, especially if you're patient and willing to work the same weed line twice. The lake doesn't produce trophy walleye, but 16- to 20-inch fish are common, and you'll catch enough to make a day worthwhile if you're on the water at the right time.

Spring pike fishing in the shallows

Northern pike on Jimmerson peak in April and May when water temperatures climb into the 40s and 50s. Pike move into the shallowest bays and vegetation to spawn, and they're aggressive and hungry. The north and west bays hold the most pike activity early in the season. Fish large, flashy lures—7- to 10-inch crankbaits or spinnerbaits in bright colors—and work them slowly through the weeds. You don't need to cast far; pike in shallow water will chase a lure from 20 feet away.

Jimmerson pike run 18 to 28 inches on average, with occasional fish pushing 30 inches. The shallow, weedy environment means pike are abundant but not huge, which makes for fast action and good numbers. By June, as water warms and pike move deeper, the bite slows considerably. If you're targeting pike, plan your trip for late April or May when the conditions are in your favor.

Fall and winter considerations

Fall fishing on Jimmerson picks up again in September and October as walleye move shallower and more aggressive. The same weed-edge patterns that work in summer apply, but fish are less picky about light conditions and will bite throughout the day. Water temperature in fall ranges from the high 60s in early September to the low 40s by late October, and walleye respond to this cooling by feeding more consistently.

Winter ice fishing is possible once the lake freezes solid—typically by mid-December—but Jimmerson's shallow depth and heavy weed growth make it less popular than deeper lakes in the region. If you do fish through the ice, focus on the deeper holes and channel areas where walleye congregate. Check current ice conditions with the Florence County Parks Department or a local bait shop before heading out.

Regulations and licensing

Wisconsin requires a valid fishing license for anyone 16 and older. You can purchase a license online through the Wisconsin Department of Natural Resources website, at any bait and tackle shop in Florence or Iron River, or at most sporting goods stores. A daily license costs less than a three-day license, which costs less than an annual license; choose based on how often you plan to fish.

Walleye and northern pike have daily bag limits that vary by season and waterbody. On Jimmerson, current regulations allow a daily limit of five walleye and five pike, but these limits can change. Check the Wisconsin DNR fishing regulations guide or call the Florence County Parks Department before your trip to confirm the current rules. Possession limits—the number of fish you can have at home—are typically double the daily limit.

Getting there and nearby services

Jimmerson Lake is accessed via County Road N from Florence. The town of Florence has a grocery store, gas station, and a couple of small restaurants, but don't expect a resort town. Iron River, about 20 minutes south, has more services including a hardware store, a few motels, and a couple of bait shops. The closest larger town is Hurley, Wisconsin, about 45 minutes away, which has a wider range of lodging and dining.

Camping is available at nearby state and county parks. The Florence County Parks Department maintains several campgrounds in the area, and the Nicolet National Forest has dispersed camping options. If you're planning a weekend trip, book lodging in advance during summer and early fall, as rooms fill quickly in the North Woods.

Tackle and technique tips

Jimmerson's shallow, weedy character means you'll lose tackle. Bring extra hooks, jigs, and lures—especially crankbaits and spinnerbaits for pike. A weed guard on your jig helps, but it's not foolproof. For walleye, keep your line in the 6- to 8-pound test range; heavier line is visible in the clear water near the weed edge and reduces bites. For pike, 10- to 12-pound test is safer because pike have sharp teeth and will fray lighter line.

A depth finder is useful but not essential on Jimmerson because the lake is so shallow and the weed growth is visible. If you have one, use it to locate the deeper holes and channel areas where walleye retreat during the day. A good pair of polarized sunglasses helps you spot weed edges and shallow structure that a depth finder might miss. Bring bug spray—the North Woods mosquitoes are serious in summer, especially in early morning and evening.

Frequently Asked Questions

Do I need a boat to fish Jimmerson Lake?

No. The public landing allows shore fishing as well as boat access. The south shore near the landing has some open water and weed edges you can reach from shore, though a boat gives you access to more of the lake and better weed-line coverage. If you don't have a boat, focus on the area immediately around the landing and the shallow bays on the south shore.

What's the best time of year to fish Jimmerson?

Spring (April and May) is best for pike; summer (June through August) is best for walleye, especially at dawn and dusk; fall (September and October) is good for both species. Winter ice fishing is possible but less productive than other seasons due to the lake's shallow depth and weed growth.

Can I rent a boat near Jimmerson Lake?

There are no boat rental services directly on Jimmerson. You'll need to bring your own boat or check with lodging in Florence or Iron River to see if they offer rental partnerships. Most anglers who don't own a boat trailer their own or rent from a service in a larger town.

What should I do if I catch a fish I want to keep?

Keep it on a stringer in the water or in a live well if your boat has one. Wisconsin law requires that fish be kept whole until you leave the water, so you can't fillet them on the boat. Once you're off the water, you can clean and fillet your catch. Check the daily bag limit before you keep any fish.

Is Jimmerson Lake good for beginners?

Yes, especially for pike fishing in spring. The shallow water and abundant weed cover make it forgiving for newer anglers, and pike are aggressive. Walleye fishing requires more patience and attention to weed edges, but the lake's small size means you can cover it thoroughly in a day and learn the structure quickly.