MJP –
Wisconsin’s lakes are beloved for their picturesque scenery, abundant wildlife, and recreational activities. However, some of these tranquil spots are also home to a variety of snakes that can surprise even the most seasoned nature lovers.
While many of these species are non-venomous and harmless, others can be aggressive when threatened. If you’re planning to visit Wisconsin’s beautiful lakes this summer, it’s crucial to be aware of which lakes are known for snake infestations.
Below are 11 of the most snake-infested spots in Wisconsin’s lakes—places where you should exercise caution or consider alternatives.
1. Lake Michigan (Shoreline Areas)
As one of the largest lakes in the United States, Lake Michigan is a stunning destination, but it’s also a hotbed for snake species. Along the shoreline, particularly in the marshy areas, you may encounter water snakes such as the northern water snake. These snakes often bask on rocks near the shore or swim along the edges of the lake. While they are not venomous, their size and aggression when disturbed make them a dangerous presence, especially for swimmers and those wading into the water.
2. Lake Geneva (Walworth County)
Known for its beautiful waterfront and luxury resorts, Lake Geneva is one of Wisconsin’s most popular destinations. However, the shallow, marshy areas surrounding the lake provide an ideal habitat for the northern water snake. These snakes are frequently seen along the shoreline, particularly in spring and summer. While they aren’t poisonous, their abundance in certain areas of the lake can make activities like kayaking and fishing risky.
3. Devil’s Lake (Baraboo)
As a state park famous for its towering bluffs and crystal-clear waters, Devil’s Lake draws thousands of visitors every year. However, the lake’s surrounding wetlands are home to a variety of snake species, including the common water snake. These snakes are typically found in the shallows and along the shores, and while they are not venomous, they can become defensive if startled. The abundance of food and shelter in the wetlands makes Devil’s Lake an attractive spot for snakes, particularly in the summer months.
4. Lake Winnebago (Fond du Lac County)
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Lake Winnebago, the largest inland lake in Wisconsin, is a hub for boating, fishing, and wildlife viewing. But the lake’s shallow waters and marshy areas are home to a variety of snake species, including water snakes and garter snakes. The marshes surrounding the lake are prime habitats for these creatures, and they can frequently be found sunbathing on rocks or swimming through the shallow water. Visitors should stay cautious, especially near the water’s edge, as snakes are often well-camouflaged in the grass and reeds.
5. Mirror Lake (Sauk County)
Located in the heart of Mirror Lake State Park, this picturesque lake offers clear waters and a peaceful environment for outdoor activities. However, it’s also home to several species of snakes, including the northern water snake and the eastern garter snake. These snakes thrive in the lake’s shallow areas, particularly in the warm summer months. While they are non-venomous, they can be aggressive if provoked. The dense vegetation along the shore makes it difficult to spot these snakes, so be cautious when venturing near the water.
6. Lake Puckaway (Green Lake County)
A popular destination for anglers and boaters, Lake Puckaway is home to a variety of snakes, including the water moccasin. These venomous snakes are rarely seen in public areas, but they do inhabit the marshy, wooded sections of the lake. If you’re visiting this lake, especially if you plan to wade into the water or explore its secluded areas, it’s important to be on the lookout for these dangerous creatures. The shallow, marshy waters are prime habitats for snakes, so exercise extreme caution.
7. Eagle River Chain of Lakes (Eagle River)
The Eagle River Chain of Lakes is a beautiful series of lakes popular for boating, fishing, and water sports. However, the shallow, marshy areas surrounding the lakes are known to harbor a variety of snake species, including the northern water snake and garter snake. These snakes are most commonly found near the shoreline or in dense vegetation, so visitors should stay vigilant when walking along the banks or swimming in the shallows.
8. Lake Kegonsa (Dane County)
Nestled near Madison, Lake Kegonsa offers a peaceful retreat for outdoor enthusiasts. However, the lake’s shoreline is home to numerous snakes, including the northern water snake and the common garter snake. These reptiles are particularly active during the warmer months, when they can often be spotted basking on rocks or swimming near the shore. The shallow waters around the lake provide an ideal habitat for these snakes, making it important for visitors to stay aware of their surroundings.
9. Fish Lake (Polk County)
A small but serene lake, Fish Lake is a popular spot for fishing and canoeing. Unfortunately, the shallow, weedy waters make it a haven for water snakes, such as the northern water snake. These non-venomous snakes are often seen swimming or resting on the lake’s shoreline, particularly in the summer. While they are not dangerous, their large numbers and sudden movements can be startling for unsuspecting visitors. Always be cautious near the water’s edge.
10. Big Muskellunge Lake (Vilas County)
This beautiful, serene lake is located in Vilas County and is known for its excellent fishing and wildlife opportunities. However, it also has a large population of water snakes that thrive in its shallow waters. These snakes are most commonly spotted near the shoreline, especially in the warmer months when they come out to bask in the sun. While these snakes are generally harmless, their numbers can be overwhelming for visitors, so be cautious when swimming or fishing along the lake’s edge.
11. Lake Tomahawk (Oneida County)
Lake Tomahawk is a popular spot for fishing, boating, and camping. However, this lake is also home to a variety of snakes, including water moccasins, which are venomous and potentially dangerous. These snakes are typically found in the shallow areas around the lake’s wetlands, where they hunt for prey. If you’re planning to visit Lake Tomahawk, it’s important to remain vigilant and avoid areas with dense vegetation, which are often where snakes are most active.
While Wisconsin’s lakes offer breathtaking scenery and abundant opportunities for outdoor activities, they also harbor snake species that can pose a danger to unsuspecting visitors.
From non-venomous water snakes to more dangerous species like the water moccasin, these snakes are an unavoidable part of the ecosystem in many Wisconsin lakes. If you plan on visiting any of these lakes, it’s essential to stay alert and take proper precautions. Stay away from the water’s edge, avoid dense vegetation, and always be cautious while swimming or hiking around these snake-infested areas. By staying informed and vigilant, you can safely enjoy the natural beauty of Wisconsin’s lakes without getting caught off guard by its slithering inhabitants.
Juniper Calloway is a dedicated journalist with 3 years of experience in covering hard-hitting stories. Known for her commitment to delivering timely and accurate updates, she currently works with MikeandJon Podcast, where she focuses on reporting critical topics such as crime, local news, and national developments across the United States. Her ability to break down complex issues and keep audiences informed has established her as a trusted voice in journalism.
