What to expect at Post Lake
Post Lake is a shallow, 1,200-acre impoundment in Oconto County in northeastern Wisconsin, formed by a dam on the Oconto River. The lake holds walleye, northern pike, largemouth bass, and panfish — primarily bluegill and crappie — in water that averages 8 to 12 feet deep with scattered vegetation and woody structure. The lake is accessible by boat and shore, draws a mix of local and visiting anglers, and fishes best in spring and fall when water temperatures favor active feeding.
Post Lake is not a destination lake in the way Winnebago or Green Bay are, but it is a solid regional option if you are already in Oconto County or want to avoid the crowds on larger systems. The shallow structure and vegetation make it productive for pike and panfish year-round, though walleye fishing can be inconsistent depending on season and water clarity.
Key Takeaways
- Post Lake holds walleye, northern pike, largemouth bass, bluegill, and crappie in shallow water averaging 8 to 12 feet deep.
- Spring (April through May) and fall (September through October) are the most reliable seasons for walleye and pike activity.
- Public boat access is available at the Post Lake public landing on the north shore; shore fishing is also possible along county roads.
- Wisconsin fishing licenses and inland trout stamps (if applicable) are required; check current regulations for species-specific bag limits and size restrictions before you fish.
- Summer panfish — bluegill and crappie — bite consistently in shallow weed beds and around dock pilings throughout the season.
Seasons and what bites when
Spring (April through May) is the most productive period for walleye at Post Lake. As water temperatures climb from the low 40s to the mid-50s, walleye move into shallow bays and along the dam structure to feed before spawning. Jigs tipped with live minnows, crankbaits, and live shiners work well in 6 to 10 feet of water near vegetation edges and rocky areas. Early morning and evening produce the most consistent bites.
Summer (June through August) slows walleye fishing as the lake warms and fish move deeper or suspend in the thermocline. Pike and largemouth bass remain active in weed beds and around structure, and panfish — bluegill and crappie — bite reliably in shallow water near docks, fallen trees, and vegetation. Topwater lures and soft plastics work for bass and pike; small jigs and live bait take panfish consistently.
Fall (September through October) brings a second strong window for walleye as water cools and fish return to shallower feeding zones. Pike also become aggressive as they prepare for winter. Jigs, live bait, and crankbaits produce in 8 to 15 feet of water. Winter (November through March) is possible but less popular; ice fishing for panfish and walleye occurs when the lake freezes solid, typically by mid-December.
Access and boat launch information
The primary public boat access is the Post Lake public landing, located on the north shore off County Road M. The landing has a paved ramp, parking for vehicles with trailers, and a courtesy dock. It is maintained by Oconto County and is open year-round during daylight hours. There is no launch fee.
Shore fishing is possible along several county roads that border the lake, particularly on the north and east sides. Parking is limited and informal; check with local authorities before leaving a vehicle unattended. The lake is surrounded by a mix of public and private land, so respect posted property and stay on public rights-of-way.
Species, regulations, and what gear to bring
Post Lake holds four primary species. Walleye are the main draw for many anglers; the lake supports a modest population with fish ranging from 12 to 20 inches common and occasional fish to 25 inches. Northern pike are abundant and aggressive, with fish from 18 to 30 inches regularly caught. Largemouth bass are present but less targeted than pike. Panfish — bluegill and crappie — are prolific and provide consistent action, especially for beginners and families.
Wisconsin requires a current fishing license for anyone 16 and older. Licenses are sold online through the Wisconsin Department of Natural Resources website, at sporting goods retailers, and at bait shops near the lake. Specific bag limits, size restrictions, and season dates vary by species and change annually. Check the current Wisconsin fishing regulations before you fish; walleye and pike limits are typically restrictive to protect the fishery, while panfish often have more generous daily limits.
Bring a 6- to 7-foot medium-action spinning rod with 8- to 12-pound monofilament or braided line for walleye and pike. For panfish, a lighter 5- to 6-foot rod with 4- to 6-pound line works well. Essential tackle includes 1/4- to 3/8-ounce jigs, live minnows or shiners, small crankbaits, and soft plastic baits. A net, pliers, and a depth finder are helpful. Bring sunscreen, a hat, and water — the lake offers no amenities at the launch.
Best fishing spots and structure
The dam area on the south end of the lake holds walleye and pike year-round. Fish the rocky structure and current breaks in 10 to 15 feet of water with jigs and live bait. Early morning and dusk are most productive.
The northern bays, particularly near the public landing, have extensive shallow weed beds that hold pike, bass, and panfish. Work the weed edges in 6 to 10 feet of water with topwater lures and soft plastics for pike and bass; use small jigs and live bait for panfish.
Fallen trees and woody debris scattered throughout the lake attract pike and bass. These spots are often shallow (4 to 8 feet) and are best fished with crankbaits or soft plastics. Panfish also congregate around submerged wood.
Nearby towns and services
The town of Suring, about 8 miles south of Post Lake, has gas, food, and lodging. Oconto, roughly 15 miles southeast, is a larger town with more retail options, restaurants, and a motel. Both towns have bait and tackle shops that stock live minnows, shiners, and local fishing information.
The nearest full-service marina is on the Oconto River downstream from Post Lake; it offers fuel, repairs, and rental boats. Camping is available at county parks and private campgrounds in the area, though Post Lake itself has no on-site camping.
When to avoid Post Lake
Post Lake can be crowded on summer weekends, particularly in July and August, when family anglers and recreational boaters use the lake. If you prefer solitude, fish on weekdays or visit in spring and fall.
Water clarity varies with season and recent rainfall. After heavy rain, the lake can become turbid as runoff enters from the Oconto River system, making walleye fishing difficult. Windy days can make the shallow lake choppy and unsafe for small boats. Check the weather forecast and water conditions before launching.
Frequently Asked Questions
Do I need a boat to fish Post Lake, or can I fish from shore?
Shore fishing is possible along county roads on the north and east sides of the lake, but a boat gives you access to deeper structure and more productive areas. The public landing makes boat access easy and affordable. Many anglers fish both ways depending on the season and target species.
What is the best time of year to catch walleye at Post Lake?
Spring (April through May) and fall (September through October) are most reliable. Water temperatures in these seasons push walleye into shallow feeding zones. Summer walleye fishing is slower as fish move deeper; winter is possible but less popular among most anglers.
Are there size or bag limits for walleye and pike at Post Lake?
Yes. Wisconsin sets annual limits that vary by species and region. Check the current Wisconsin Department of Natural Resources fishing regulations before you fish; limits change year to year and may differ for walleye and pike. Local bait shops near the lake can also provide current rules.
Can I rent a boat at Post Lake?
Post Lake itself does not have a rental facility. The nearest boat rental options are on the Oconto River downstream and at larger lakes in the region. Bring your own boat or check with local marinas in Oconto or Suring for rental availability.
What should I do if the water is murky after rain?
Walleye fishing becomes difficult in turbid water, but pike and panfish often bite better because they rely less on sight. Use darker lures and live bait, and fish shallower structure. Wait a few days for the water to clear if you are targeting walleye specifically.